IEEE e

Size: px
Start display at page:

Download "IEEE e"

Transcription

1 2007 IEEE e LAN VoIP U075-2

2 IEEE e LAN LAN IEEE ISM CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) Dynamic TDMA (Time Division Multiple Access) IEEE e IEEE e QoS (Quality of Service) EDCA (Enhanced Distributed Channel Access) HCCA (Hybrid Coordination Function Controlled Channel Access) WMM (Wi-Fi Multimedia) TOS Type Of Service VoIP VoIP CODEC

3 3.6 VoIP MOS PSQM PESQ R VoIP : : Best Effort : : Best Effort

4 2.1 CSMA/CA CW AIFS TXOP R R

5 ITU-T G MOS IP Mbps R Mbps Mbps R Mbps Mbps Mbps EDCA Best Effort R Mbps

6 1 1.1 IP (Best Effort) ( ) QoS (Quality of Service) 1.2 QoS IEEE e LAN QoS VoIP QoS VoIP VoIP QoS 5

7 IEEE e IEEE e 3 VoIP (Voice over Internet Protocol) VoIP 4 VoIP EDCA IEEE e VoIP EDCA (QoS) 5 6

8 2 IEEE e LAN 2.1 LAN IEEE LAN IEEE Institute of Electrical Electronics Engineers 1990 IEEE Wireless LAN WG 1997 LAN IEEE IEEE ISM 3 1Mbps 2Mbps IEEE b IEEE b 11Mbps 54Mbps IEEE b IEEE g IEEE b 5GHz IEEE a 3 IEEE i QoS IEEE e IEEE n ISM ISM (industrial Scientific Medical) 900MHz ( MHz) 2.4GHz ( MHz) 5.7GHz ( MHz) 3 7

9 2 IEEE E LAN 2.4GHz LAN ISM CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) CSMA/CD (Carrier Sense Multiple Access with Collision Detection) CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) CSMA/CA IFS = Inter Frame Space ACK ACK CSMA/CD 2.1: CSMA/CA 8

10 2 IEEE E LAN Dynamic TDMA (Time Division Multiple Access) TDMA (Time Division Multiple Access) 1 2 PDC GSM TDMA Dynamic TDMA TDMA 2.2 IEEE e IEEE e IEEE e IEEE( ) LAN 802 IEEE a IEEE b QoS QoS QoS EDCA CSMA/CA QoS HCCA Dynamic TDMA IEEE a IEEE b IEEE e 2.4GHz 5.2GHz QoS (Quality of Service) QoS ATM ( ) QoS QoS EDCA Enhanced Distributed Channel Access HCCA Hybrid Coordination Function Controlled Channel Access 2 IEEE e QoS 9

11 2 IEEE E LAN EDCA (Enhanced Distributed Channel Access) EDCA LAN CSMA/CA CSMA/CA EDCA EDCA 4 AC Access Category 4 AC-BK AC-BE AC-VI AC-VO CSMA/CA 3 AIFS Arbitration IFS CW Contention Window TXOP Transmission Oppotunity AIFS (Arbitration IFS) AIFS AIFS ms CW (Contention Window) CW (Contention Window) 10

12 2 IEEE E LAN 0 CW CW CWmin CWmax CWmin CW CWmax CW 2 CWmax TXOP (Transmission Opportunity) TXOP TXOP 0 1 ms 2 AckPolicy Ack ACM Admission Control Mandatory HCCA (Hybrid Coordination Function Controlled Channel Access) HCCA PCF Point Coordination Function QoS WMM (Wi-Fi Multimedia) Wi-Fi Alliance EDCA QoS IEEE e QoS WMM TOS Type Of Service EDCA TOS TOS 8 6 DSCP Differentiated Services Code Point Diffserv 11

13 3 VoIP 3.1 VoIP Voice over Internet Protocol IP VoIP IP IP 3.2 VoIP IP QoS (Quality of Service) QoS VoIP 3.3 VoIP (CODEC) IP 12

14 3 VOIP 3.4 CODEC Kbit/s 1 7Kbit/s 4 30Kbit/s

15 3 VOIP 3.1: G.711 G G.729A 64Kbit/s 5.3/6.3Kbit/s 8Kbit/s 160byte 20/24byte 20byte (IP,UDP,RTP) 40byte 40byte 40byte 20ms 30ms 20ms 80Kbit/s Kbit/s 24Kbit/s VoIP End-to-End 150ms 400ms ITU-T (International Telecommunication Union Telecommunication sector ) G : ITU-T G.114 (ms) CODEC CODEC 14

16 3 VOIP 1 RTP/UDP/IP IP 1 IP 1 IP ms 3.6 VoIP MOS ITU International Telecommunication Union P.800 MOS (Mean Opinion Score) 5 MOS MOS 15

17 3 VOIP 3.3: MOS 5 (Excellent) 4 (Good) 3 (Fair) 2 (Poor) 1 (Bad) PSQM ITU-T 1996 PSQM (Perceptual Speech Quality Measure) MOS PSQM MOS PSQM IP PSQM CODEC IP MOS PSQM IP PESQ 2001 ITU-T PSQM PESQ (Perceptual Evaluation of Speech Quality) IP PESQ PSQM IP PSQM PSQM PESQ 16

18 3 VOIP MOS PESQ MOS PSQM PESQ R PESQ IP R PESQ R ITU-T G.107 G.113 R E-model 20 TTC 17 R IP 050 C 3.4: IP R A B C ms ms ms R 2 1. R MOS ITU-T G.107 TTC (The Telecommunication Technology Committee 17

19 3 VOIP ) JJ R MOS R MOS MOS 2. IP ITU-T G.107 R IP ITU-T G.113 R R = R o I s I d I e + A R o I s I d I e A 18

20 4 VoIP W Z F A E IEEE b EDCA QoS IEEE e iperf UDP TOS IP Tables 19

21 4 VOIP 4.1: 4.1: A B C CPU Core 2 Duo U7500 Core 2 Duo T7250 Pentium M 2.0GHz 2.0GB 2.0GB 1.0GB OS Windows XP Professional Windows XP Professional Windows XP Professional D E F CPU Core 2 Duo T7250 Pentium M 1.8GHz 2.0GB 512MB OS Windows XP Professional Windows XP Professional W X Y Z CPU Core 2 Duo U7500 Core 2 Duo T7250 Pentium 3 800MHz 2.0GB 2.0GB 384MB OS Windows XP Professional Windows XP Professional Windows XP Professional 20

22 4 VOIP Astec Eyes for VoIP Version CODEC VoIP G R R CIAJ Communications and Information network Association of Japan IP (CES-Q003-1) 5 R : IEEE802.11e EDCA VoIP Voice R 60Kbps F E Voice W A X B Back Ground Y C Best Effort G D Video 4.2: 1 Mbps Video 5 10 Best Effort 10 5 Back Ground Mbps 21

23 4 VOIP Back Ground : 1 R Mbps Video 5 10 Best Effort 10 5 Back Ground R Best Effort 2 Best Effort 4.4 2: Best Effort Video 5Mbps Back Ground 55Mbps Best Effort 1 Voice R 60Kbps 4.4: 2 Mbps Video Best Effort Back Ground

24 4 VOIP : 2 R Mbps Video Best Effort Back Ground R Best Effort 4.5 3: Best Effort 4 IEEE802.11e Video Best Effort 1. Voice Video Back Ground 4.6: 3-1 Mbps Video Back Ground Voice Best Effort Back Ground 4.7: 3-2 Mbps Best Effort Back Ground

25 4 VOIP R Voice 60Kbps : Video Best Effort R 3 Best Effort IEEE802.11e EDCA Best Effort VoIP Best Effort Best Effort Web Best Effort Best Effort Best Effort EDCA EDCA 24

26 4 VOIP 4.7 4: Best Effort Best Effort Best Effort 3 EDCA : EDCA CWmin CWmax AIFS TXOP Voice Video Best Effort Back Ground Best Effort 2 Video 4 Back Ground : 4 Best Effort CWmin CWmax AIFS TXOP Best Effort Mbps R 4.10 R EDCA R IP 050 Best Effort R VoIP 25

27 4 VOIP 4.10: 4 R Mbps Video 2.5 Best Effort 2.5 Back Ground 55 R : CW 4.4: AIFS 26

28 4 VOIP 4.5: TXOP CW CW min = 15 AIFS TXOP R Best Effort R : 4 CWmin CWmax AIFS TXOP Best Effort : R R IP C 27

29 4 VOIP 4.7: R R R IEEE802.11e EDCA 28

30 5 5.1 IEEE e VoIP VoIP EDCA Best Effort EDCA IP skype VoIP VoIP IEEE e QoS QoS VoIP IEEE802.11e EDCA EDCA 5.2 Best Effort 29

31 5 UDP TCP UDP CODEC G CODEC QoS EDCA HCCA 30

32 NTT 11e TEAM GOTO LOVE 6 31

33 [1] ITU-T Recommendation G.107, The E-model, a computational model for use in transmission planning, March [2] ITU-T Recommendation G.113, Transmission impairments due to speech processing, February [3] ITU-T Recommendation G.114, One-way transmission time, March [4] ITU-T Recommendation G.723.1, Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s, February [5] ITU-T Recommendation P.800, Methods for subjective determination of transmission quality, August [6] ITU-T Recommendation P.861, Objective quality measurement of telephone-band ( Hz) speech codecs, February [7] ITU-T Recommendation P.862, Perceptual evaluation of speech quality (PESQ), an objective method for end-to-end speech quality assessment of narrowband telephone networks and speech codecs, February [8] W.R. Stevens,,, TCP/IP,, [9],,, TCP/IP ( ),, [10], QoS,, [11], IEEE802.11e VoIP, 2006, [12], IEEE802.11e VoIP, 2006,

34 [13], Diffserv, 2003, [14], DiffServ AF, 2003, [15], LAN, 2003, [16], UDP, 2003, [17], DiffServ VoIP, 2002,

第3回卒業論文進捗報告

第3回卒業論文進捗報告 IEEE 802.11e における無線伝送速度の 変化に応じた最適な EDCA パラメータの設定 早稲田大学理工学部 コンピュータ ネットワーク工学科 後藤研究室学部 4 年 1G06R156-6 野間敬太 2010/2/1 卒業論文発表 1 研究の背景 目的 ワイヤレス ブロードバンド時代の進展 モバイル端末による音声 動画通信の利用 サービスに適した QoS (Quality of Service)

More information

SIP SDP(Session Description Protocol) RTSP(Real-time Streaming Protocol) RTP(Real-time Transport Protocol) IP 1 [1] 1: IP RTP(Real-Time RFC1889 Transf

SIP SDP(Session Description Protocol) RTSP(Real-time Streaming Protocol) RTP(Real-time Transport Protocol) IP 1 [1] 1: IP RTP(Real-Time RFC1889 Transf C4 higa@comm.eng.osaka-u.ac.jp 1 IP 1.1 1. IP IP 2. 1.2 1.2.1 IP IP (Internet Protocol telephone) IP VoIP(Voice over Internet Protocol) IP IP (Network Access Control) IP IP (Call Control) (Terminal Control)

More information

10_08.dvi

10_08.dvi 476 67 10 2011 pp. 476 481 * 43.72.+q 1. MOS Mean Opinion Score ITU-T P.835 [1] [2] [3] Subjective and objective quality evaluation of noisereduced speech. Takeshi Yamada, Shoji Makino and Nobuhiko Kitawaki

More information

スライド タイトルなし

スライド タイトルなし 1 2 3 4 VoIPの動向 ブロ ドバンドの普及 ブロードバンド加入件数はDSLを中心に急速に拡大 日本のブロードバンド普及状況 2003 年1末時点で計834万加入 2003年1末時点で計834万加入 内訳 ADSL ADSL 612万 万 Cable Cable 1 99万 FTTH 23万 万 内訳 612 99万 FTTH 23 内訳 ADSL 612万 Cable 199万 FTTH

More information

完成卒論.PDF

完成卒論.PDF LAN 4 9920449 2 0 LAN Bluetooth LAN 1 LAN LAN LAN LAN 2 LAN Bluetooth LAN Bluetooth 3 Bluetooth 4 Bluetooth 5 Bluetooth Bluetooth 6 LAN Bluetooth LAN LocalAreaNetwork 1 LAN LAN LAN LAN Ethernet Ethernet

More information

2004 3

2004 3 JAIST Reposi https://dspace.j Title 様々なデータを扱えるストリーミング技術を用いて機 器間の通信 制御を行う研究 Author(s) 明壁, 祐基 Citation Issue Date 2004-03 Type Thesis or Dissertation Text version author URL http://hdl.handle.net/10119/1806

More information

デジタル通信を支える無線技術

デジタル通信を支える無線技術 Aug. 02, 2008 Copyright 2008 Niigata Internet SOCiety & I.Suzuki All Rights Reserved. 2 1. LAN 2. 3. LAN 4. 802.11 3 4 1. LAN 2. 3. LAN 4. 802.11 5 WMAN 50Km WiMax WLAN 100m 802.11 WPAN 10m ZigBee Bluetooth

More information

18 LAN AP (AP, Access Point) LAN (STA, Station) (RSSI, Received Signal Strength Indicator) AP AP STA AP LAN AP STA LAN AP LAN LAN STA AP LAN (Local Ar

18 LAN AP (AP, Access Point) LAN (STA, Station) (RSSI, Received Signal Strength Indicator) AP AP STA AP LAN AP STA LAN AP LAN LAN STA AP LAN (Local Ar LAN AP 19 2 16 18 LAN AP (AP, Access Point) LAN (STA, Station) (RSSI, Received Signal Strength Indicator) AP AP STA AP LAN AP STA LAN AP LAN LAN STA AP LAN (Local Area Network) AP (Access Point) 1 1 2

More information

AV 1000 BASE-T LAN 90 IEEE ac USB (3 ) LAN (IEEE 802.1X ) LAN AWS (Amazon Web Services) AP 3 USB wget iperf3 wget 40 MBytes 2 wget 40 MByt

AV 1000 BASE-T LAN 90 IEEE ac USB (3 ) LAN (IEEE 802.1X ) LAN AWS (Amazon Web Services) AP 3 USB wget iperf3 wget 40 MBytes 2 wget 40 MByt 1 BYOD LAN 1 2 3 4 1 BYOD 1 Gb/s LAN BYOD LAN LAN Access Point (AP) IEEE 802.11n BYOD LAN AP wget iperf3 1 AP [2] 2 IEEE 802.11ac [3] AP 4 AV (207 m 2 ) ( 1 2 )[4, 5] AP Wave2 Aruba AP-335 Aruba LAN 7210

More information

A Study on Traffic Characteristics in Multi-hop Wireless Networks 2010 3 Yoichi Yamasaki ( ) 21 Local Area Network (LAN) LAN LAN LAN (AP, Access Point) LAN AP LAN AP AP AP (MWN, Multi-hop Wireless Network)

More information

[1] [2] [3] (RTT) 2. Android OS Android OS Google OS 69.7% [4] 1 Android Linux [5] Linux OS Android Runtime Dalvik Dalvik UI Application(Home,T

[1] [2] [3] (RTT) 2. Android OS Android OS Google OS 69.7% [4] 1 Android Linux [5] Linux OS Android Runtime Dalvik Dalvik UI Application(Home,T LAN Android Transmission-Control Middleware on multiple Android Terminals in a WLAN Environment with consideration of Round Trip Time Ai HAYAKAWA, Saneyasu YAMAGUCHI, and Masato OGUCHI Ochanomizu University

More information

untitled

untitled 1 2 1.1................................. 4 2 1 2.1................................... 1 2.2 CSMA....................................... 1 2.3 CSMA/CD.................................... 3 2.4 CSMA/CA....................................

More information

C08.PDF

C08.PDF QoS Diffserv 1999 12 14 Internet Week 99 Internet Week 99 1999 kenjiro Cho, Japan Network Information Center 1 DiffServ DiffServ DiffServ DiffServ 2 DiffServ congestion 90 IP IP 3 QoS 3.1 QoS QoSQuality

More information

untitled

untitled 4 1 4.1................................................. 1 4.1.1........................................ 1-1 4 17 11 30 4.1 2001 49% 2,400 47% 6,000 2001 390 8% 2005 3000 1000 IT 1 ADSL(Asymmetric Digital

More information

IP IP DHCP..

IP IP DHCP.. NICE 2008 4 14 1 NICE 2 1.1.................... 2 2 3 2.1........................................ 3 2.2....................................... 5 2.3.................................... 6 2.4...................................

More information

TTC技術書

TTC技術書 JJ-20.24 Private Integrated Services Network(PISN)- Signalling protocols for IP-based connections as Inter-PINX Connections 2003 4 23 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE ...5...6...6...6...7...7...7...7...7...7...7...7...7...7

More information

IEEE802.11n LAN WiMAX(Mobile Worldwide Interoperability for Microwave Access) LTE(Long Term Evolution) IEEE LAN Bluetooth IEEE LAN

IEEE802.11n LAN WiMAX(Mobile Worldwide Interoperability for Microwave Access) LTE(Long Term Evolution) IEEE LAN Bluetooth IEEE LAN 23 IEEE802.11n LAN 43422519 ( ) 24 2 6 IEEE802.11n LAN WiMAX(Mobile Worldwide Interoperability for Microwave Access) LTE(Long Term Evolution) IEEE802.11 LAN Bluetooth 2009 9 IEEE802.11 LAN IEE E802.11n

More information

MIMOからMassive MIMOを用いた伝送技術とクロスレイヤ評価手法

MIMOからMassive MIMOを用いた伝送技術とクロスレイヤ評価手法 802.11 LAN MIMOMassive MIMO Wi-Fi 20 OFDMorthogonal frequency division multiplexing IEEE 802.11 LAN MIMOmultiple input multiple output LAN MIMO MIMO LTElong term evolution IEEE 802.11n MIMO LAN LAN MIMO

More information

QoS TCP-AV fair case QoS LAN VoIP throughput of all s TCP-AV 1 TCP 2 1 CSMA/CA CSMA/CACarrier Sense Multiple Access with Collision QoS Avoidance LAN Q

QoS TCP-AV fair case QoS LAN VoIP throughput of all s TCP-AV 1 TCP 2 1 CSMA/CA CSMA/CACarrier Sense Multiple Access with Collision QoS Avoidance LAN Q DEWS2008 D8-6 LAN QoS TCP 112 8610 2 1 1 NEC 211 8666 1753 E-mail: emi@oglisochaacjpoguchi@computerorg y-hirano@hyjpneccom t-murase@apjpneccom QoSQuality of Service QoS TCP-AV TCP TCP-AV QoS TCP LAN QoS

More information

VoIPチュートリアル

VoIPチュートリアル VoIP Tutorial 2002. 7.26 Y.Tanaka / JT 0. VoIP EX PSTN EX VoIP GW IP Network GW IP VoIP (Voice over IP) cf. IP (IP Telephony) VoIP TS: Time Slot TS VoIP IP / HLR fixed network EX mobile network EX 090-...

More information

IP RTP 2 QoS i

IP RTP 2 QoS i 17 IP A study on IP path quality forecasting from the IP path delay measurements 1060339 2006 3 10 IP RTP 2 QoS i Abstract A study on IP path quality forecasting from the IP path delay measurements Kotaro

More information

,., ping - RTT,., [2],RTT TCP [3] [4] Android.Android,.,,. LAN ACK. [5].. 3., 1.,. 3 AI.,,Amazon, (NN),, 1..NN,, (RNN) RNN

,., ping - RTT,., [2],RTT TCP [3] [4] Android.Android,.,,. LAN ACK. [5].. 3., 1.,. 3 AI.,,Amazon, (NN),, 1..NN,, (RNN) RNN DEIM Forum 2018 F1-1 LAN LSTM 112 8610 2-1-1 163-8677 1-24-2 E-mail: aoi@ogl.is.ocha.ac.jp, oguchi@is.ocha.ac.jp, sane@cc.kogakuin.ac.jp,,.,,., LAN,. Android LAN,. LSTM LAN., LSTM, Analysis of Packet of

More information

FX-DS110-CFC

FX-DS110-CFC LAN-HELPER LAN(2.4GHz) FLEXLAN-DS110 CF CARD CF CF CF 3.3V 3.3V CF ( 0~50) ( 10~90RH ( )) ( ) ( ) 1 2 3 2. 4 D S 4 2.4GHz DS-SS 40m B (VCCI) B MSMicrosoftWindowsWindows NTMS-DOS Microsoft Corporation Netscape

More information

Macintosh HD:Users:ks91:Documents:lect:nm2002s:nm2002s03.dvi

Macintosh HD:Users:ks91:Documents:lect:nm2002s:nm2002s03.dvi 3 ks91@sfc.wide.ad.jp April 22, 2002 1 2 1. over IP ( : Voice over IP; IP Internet Protocol ) over IP??? : 2002/4/20 23:59 JST : http://www.soi.wide.ad.jp/report/ 3 32 11 (4/22 ) 4 () 3 2 1? 4 ...... A.C.

More information

QoS Intserv diffserv 1998 12 16 Internet Week 98 Internet Week98 1998 Kenjiro Cho, Japan Network Information Center 1 3 QoS Intserv RSVP QoS Diff-serv 2 QoS ISP 3 2.1 FAX LAN WAN LAN WAN Heavy Tail WWW

More information

2 1. LAN LAN Aug. 02, 2008 Copyright 2008 Niigata Internet SOCiety & I.Suzuki All Rights Reserved LAN LAN WLAN

2 1. LAN LAN Aug. 02, 2008 Copyright 2008 Niigata Internet SOCiety & I.Suzuki All Rights Reserved LAN LAN WLAN . LAN.. LAN 4. 80. Aug. 0, 008 Copyright 008 Niigata Internet SOCiety & I.Suzuki All Rights Reserved. 4. LAN.. LAN 4. 80. WLAN 00m WMAN 50Km WPAN 0m WiMax 80. 0Kbps 00K M 0M 00M G 5 LAN IEEE80.(997) 80.b(999,.4GHz/Mbps)

More information

IEEE ax:第 6 世代の Wi-Fi テクニカル ホワイト ペーパー

IEEE ax:第 6 世代の Wi-Fi テクニカル ホワイト ペーパー IEEE 802.11ax 6 Wi-Fi 1 6 Wi-Fi IEEE 802.11ax 802.11ac IEEE 802.11ax LTE IEEE 802.11ax LAN WLAN Wi-Fi IEEE 802.11ax LAN 4K Ultra HD Internet of Things IoT 802.11ac IoT IEEE 802.11ax 3 1024 QAM 35% OFDMA

More information

Flow Control Information Network 1 /

Flow Control Information Network 1 / (2) Suguru Yamaguchi Nara Institute of Science and Technology Department of Information Science Flow Control Information Network 1 / 2012 2 Flow Control DLL : Automatic Repeat Request (ARQ) Stop-and-wait

More information

卒研 .PDF

卒研 .PDF 1. ------------------------------------------------------------------------------------------2 2. ---------------------------------------------------------------------------3 2.1 2.2 2.3 OSI 2.4 TCP/IP

More information

IPSJ SIG Technical Report Vol.2015-IOT-28 No /3/6 LAN 1,a) 1,b) 1,c) LAN IEEE ac 3 LAN Campus WiFi upgrades at Kyushu Institute

IPSJ SIG Technical Report Vol.2015-IOT-28 No /3/6 LAN 1,a) 1,b) 1,c) LAN IEEE ac 3 LAN Campus WiFi upgrades at Kyushu Institute LAN,a),b),c) 204 9 3 LAN IEEE 802.ac 3 LAN Campus WiFi upgrades at Kyushu Institute of Technology. 204 9 3 LAN LAN 200 LAN 200 LAN 34 47 8 2007 LAN 37 LAN Information Science Center, Kyushu Institute of

More information

(1) CCITT X.25 (HDLC/LAPB) SDLC (Synchronous Data Link Control protocol) HDLC High-speed Data Link Control protocol ITU-T/ISO ADCCP Advanced Data Comm

(1) CCITT X.25 (HDLC/LAPB) SDLC (Synchronous Data Link Control protocol) HDLC High-speed Data Link Control protocol ITU-T/ISO ADCCP Advanced Data Comm I / 6 1 1. HDLC I / 6 2 (1) CCITT X.25 (HDLC/LAPB) SDLC (Synchronous Data Link Control protocol) HDLC High-speed Data Link Control protocol ITU-T/ISO ADCCP Advanced Data Communication Control Protocol

More information

図解でわかるVoIPのすべて - IP電話の技術から構築まで -

図解でわかるVoIPのすべて - IP電話の技術から構築まで - VoIP VoIP 2003 2003 9 10 1 IP VoIP VoIP 11301J101 VoIP(Voice over Internet Protocol) VoIP IP IP IP 3 1. IP 2. VoIP 3. QoS 4. IP 4 IP IP 5 1.1 IP IP IP IP VoIP VoIP 6 1.2 IP - - - - - 7 1.2 IP - - - - 8

More information

IPSJ SIG Technical Report Vol.2009-DPS-141 No.23 Vol.2009-GN-73 No.23 Vol.2009-EIP-46 No /11/27 t-room t-room 2 Development of

IPSJ SIG Technical Report Vol.2009-DPS-141 No.23 Vol.2009-GN-73 No.23 Vol.2009-EIP-46 No /11/27 t-room t-room 2 Development of t-room 1 2 2 2 2 1 1 2 t-room 2 Development of Assistant System for Ensemble in t-room Yosuke Irie, 1 Shigemi Aoyagi, 2 Toshihiro Takada, 2 Keiji Hirata, 2 Katsuhiko Kaji, 2 Shigeru Katagiri 1 and Miho

More information

PowerPoint プレゼンテーション

PowerPoint プレゼンテーション 1 Agenda Aspera GB ( ) IP FTP IP Aspera FASP Aspera Aspera Aspera FASP FTP Aspera Solution FASP WAN FTP 1. 2. 3. Aspera WAN 1. 2. 3. FASP FASP Aspera FASP UDP FASP UDP TCP Figure 1 FASP Adaptive Rate

More information

LANFTP 1 FTP 047 PC 016 FTP HTTP 024 iphone Camera Control Pro 2 ii

LANFTP 1 FTP 047 PC 016 FTP HTTP 024 iphone Camera Control Pro 2 ii Jp LANFTP 1 FTP 047 PC 016 FTP 2 021 HTTP 024 iphone Camera Control Pro 2 ii 3 WT-5 051 A 07 FTP 039 WT-4 iii http://www.nikon-image.com/support/ CompactFlash TM SanDisk XQD Microsoft Windows Windows Vista

More information

untitled

untitled 2: ()? 2 UTP ()!! SW-HUB 3 Point-to-Point Broadcast Multiple Access Non-Broadcast Multiple Access Point-to-Point 2 MAC Examples Node A Node B 1 Broadcast Multiple Access () MAC Node A Node B Node C Ethernet

More information

PowerPoint プレゼンテーション

PowerPoint プレゼンテーション / 7 OSI7 Application protocol 6 Presentation protocol 5 Session protocol 4 Transport protocol 3 2 1 : Network Layer Host-Router Protocol (e.g., ES-IS),,: (e.g., IS-IS,NNI,) : Data link Layer Host-Router

More information

main.dvi

main.dvi }}}}}} }}}}}} Wireless LAN 1 1 LAN 1997 LAN 802.11 2 Mb/s 1999 802.11b 11 Mb/s 2003 802.11g 54 Mb/s LAN LAN LAN LAN LAN AP (Access Point) 150m 50m AP AP AP STA (Station, ) STA STA1 1 AP STA20 LAN 100 LAN

More information

WLAN WLAN AP WLAN WLAN WLAN AP- WLAN SINR WLAN WLAN CE WLAN WLAN WLAN CE 2 3 WLAN 4 WLAN 2. WLAN [10] AP CE [11] AP CE CE [12] CE AP AP AP WLAN WLAN A

WLAN WLAN AP WLAN WLAN WLAN AP- WLAN SINR WLAN WLAN CE WLAN WLAN WLAN CE 2 3 WLAN 4 WLAN 2. WLAN [10] AP CE [11] AP CE CE [12] CE AP AP AP WLAN WLAN A DEIM Forum2015 C2-4 LAN 112 8610 2-1-1 NEC 211 8666 1753 E-mail: mitomo@ogl.is.ocha.ac.jp, {miyoshi,t-murase}@ap.jp.nec.com, oguchi@computer.org LAN AP AP LAN LAN LAN WLAN AP- WLAN 3 LAN LANQoS Quality

More information

情報通信ネットワークの基礎 サンプルページ この本の定価 判型などは, 以下の URL からご覧いただけます. このサンプルページの内容は, 初版 1 刷発行時のものです.

情報通信ネットワークの基礎 サンプルページ この本の定価 判型などは, 以下の URL からご覧いただけます.   このサンプルページの内容は, 初版 1 刷発行時のものです. 情報通信ネットワークの基礎 サンプルページ この本の定価 判型などは, 以下の URL からご覧いただけます. http://www.morikita.co.jp/books/mid/085361 このサンプルページの内容は, 初版 1 刷発行時のものです. i LTE TCP/IP LAN TCP/ IP VoIP 1 2 3 2 4 5 OSI OSI 6 ISDN ADSL ii CATV

More information

InterSafe Personal_v2.3 ユーザーズガイド_初版

InterSafe Personal_v2.3 ユーザーズガイド_初版 InterSafe Personal v2.3 1. 3 1-1. 4 1-2. 5 InterSafe Personal 5 1-3. InterSafe Personal 6 6 7 8 2. 9 2-1. 10 2-2. 14 2-3. 17 17 17 2 18 19 21 3. 22 3-1. 23 23 3-2. [ ] 24 [ ] 24 [ ] 24 3-3. [ ] 25 [ ]

More information

21 VoIP An encrypted VoIP communication system for mobile telephones

21 VoIP An encrypted VoIP communication system for mobile telephones 21 VoIP An encrypted VoIP communication system for mobile telephones 1095702 2010 3 4 VoIP, IP., IP, VoIP(Voice over Internet Protocol)., VoIP,., VoIP over SSL(VoIPs), VoIPs.,,.,, VoIP., LAN VoIP. LAN

More information

Internet Live Broadcasting of the Cycling Championships, Tomohito WADA, Koichi SHIMOZONO, and Masato MASUYA Information Technology Center for Sports S

Internet Live Broadcasting of the Cycling Championships, Tomohito WADA, Koichi SHIMOZONO, and Masato MASUYA Information Technology Center for Sports S Internet Live Broadcasting of the Cycling Championships, Tomohito WADA, Koichi SHIMOZONO, and Masato MASUYA Information Technology Center for Sports Sciences, National Institute of Fitness and Sports in

More information

次世代モバイルネットワークの概要

次世代モバイルネットワークの概要 Next-Generation Mobile Network 加藤次雄 あらまし 45 3 202010 200 3.9 3.9G LTE Long Term Evolution 2010 12 LTE Abstract The number of people using cell phones in the world has exceeded 4.5 billion and this figure

More information

Vol.58 No (Mar. 2017) LAN MAC 1,a) , IoT LAN LAN AP MAC 1 Null Function Data Frame NFDF NFDF LAN NFDF LAN LAN MAC Null

Vol.58 No (Mar. 2017) LAN MAC 1,a) , IoT LAN LAN AP MAC 1 Null Function Data Frame NFDF NFDF LAN NFDF LAN LAN MAC Null LAN MAC 1,a) 1 2016 6 27, 2016 12 1 IoT LAN LAN AP MAC 1 Null Function Data Frame NFDF NFDF LAN NFDF LAN LAN MAC Null Function Data Frame Effectiveness of MAC Layer Information in Communication Quality

More information

FUJITSU Network SR-M コマンド設定事例集

FUJITSU Network SR-M コマンド設定事例集 SR-M P3NK-4192-03Z0 FUJITSU Network SR-M V02 LAN 2010 4 2013 7 2 2014 8 3 Microsoft Corporation Copyright FUJITSU LIMITED 2010-2014 2 ...2...5...5...6...7 1 LAN SR-M20AP1 / 20AP2...8 1.1 LAN...8 1.2 LAN

More information

17 Multiple video streams control for the synchronous delivery and playback 1085404 2006 3 10 Web IP 1 1 1 3,,, i Abstract Multiple video streams control for the synchronous delivery and playback Yoshiyuki

More information

2011/1 Vol. J94 B No. 1 [5] PESQ (Perceptual Evaluation of Speech Quality) [6] Wideband-PESQ [7] PEAQ (Perceptual Evaluation of Audio Quality) [8] SDT

2011/1 Vol. J94 B No. 1 [5] PESQ (Perceptual Evaluation of Speech Quality) [6] Wideband-PESQ [7] PEAQ (Perceptual Evaluation of Audio Quality) [8] SDT a) Multimedia Quality Estimation Model for Video Streaming Services Toshiko TOMINAGA a), Kazuhisa YAMAGISHI, Takanori HAYASHI, and Akira TAKAHASHI IP (QoE Quality of Experience) HDTV QoE HDTV 1. IP (QoE

More information

untitled

untitled LAUNCH SYSTEM V 2.3 VFit VTeach VRange 1 2011 3 AccuVectorX Launch System...4 (Windows XP)...5 (Windows Vista/Windows 7)...6...6...7...7 AccuSport AccuVectorX...8 Windows XP...9 Windows Vista 7. 10 (Windows

More information

Google (1) 2013 Sony Corporation Printed in Malaysia NW-F885/F886/F887

Google (1) 2013 Sony Corporation Printed in Malaysia NW-F885/F886/F887 Google 4-472-597-02(1) 2013 Sony Corporation Printed in Malaysia NW-F885/F886/F887 http://rd1.sony.net/help/dmp/nwf880/ja/ 35 40 2 USB USB 3 Wi-FiGoogle Media Go Content Transfer 4 Bluetooth 5 1 2 3 WALKMAN

More information

Vol. 50 No (Feb. 2009) LAN AP Access Point LAN Local Area Network VoIP Voice over Internet Protocol SaaS Software as a Servie PLR P

Vol. 50 No (Feb. 2009) LAN AP Access Point LAN Local Area Network VoIP Voice over Internet Protocol SaaS Software as a Servie PLR P Title Author(s) 異種サービス混在環境における無線 LAN アクセスポイント選択アルゴリズム 森岡, 康史 ; 東野, 武史 ; 塚本, 勝俊 ; 小牧, 省三 Citation 情報処理学会論文誌. 50(2) P.750-P.764 Issue Date 2009-02 Text Version publisher URL http://hdl.handle.net/11094/3283

More information

AirMac ネットワーク for Windows

AirMac ネットワーク for Windows AirMac for Windows Windows XP Windows 2000 1 1 5 6 AirMac 6 7 AirMac Extreme AirMac Express 7 AirMac for Windows 7 AirMac Express 8 AirMac 9 AirTunes 9 AirMac Extreme 10 2 11 AirMac 11 AirMac 12 AirMac

More information

TS-1009

TS-1009 TS-1009 Technical Specification on Call Interface for SDP Media Negotiation through Provider s SIP Networks(MPEG4-Visual) 2005 8 10 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 2 3 4 1.0 2005 8 10 [1] "SIP:

More information

VQS Collabo Homepage

VQS Collabo Homepage VQS Collabo Homepage http://www.vqscollabo.jp FAQ VQS...1...2...2 VQS...2...3...3...4 ( )...7...7...8 FAQ...8 VQS...9 FAQ... 10 VQS Internet Explorer... 11... 15 PROXY... 15 FinePrint5... 16... 17 FAQ...

More information

Google (1) 2013 Sony Corporation Printed in Malaysia NW-ZX1

Google (1) 2013 Sony Corporation Printed in Malaysia NW-ZX1 Google 4-475-930-02(1) 2013 Sony Corporation Printed in Malaysia NW-ZX1 http://rd1.sony.net/help/dmp/nwzx1/ja/ 34 39 2 USB USB 3 Wi-FiGoogle Media Go Content Transfer 4 Bluetooth 5 1 2 3 6 WALKMAN Guide

More information

UT-1 UT-1 D800 D800E FTP UT-1 WT-5 UT-1 D800 D800E A 1.10 B 1.10 UT UT FTP 062 WT-5 06 ii 024 FTP 069

UT-1 UT-1 D800 D800E FTP UT-1 WT-5 UT-1 D800 D800E A 1.10 B 1.10 UT UT FTP 062 WT-5 06 ii 024 FTP 069 Jp UT-1 UT-1 D800 D800E FTP UT-1 WT-5 UT-1 D800 D800E A 1.10 B 1.10 UT-1 2.0 01 UT-1 016 FTP 062 WT-5 06 ii 024 FTP 069 FTP PC037 FTP082 iphone Camera Control Pro 2 043 HTTP 047 D A 1.10 B 1.10 iii iv

More information

TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2

TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2 Japan Registry Service Co., Ltd. JPRS matuura@jprs.co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.1 TCP IP DNS Windows Internet Week 2002 [2002/12/17] Japan Registry Service

More information

untitled

untitled ()IP OSI ( ) (TCP/IP)TCP UDP ( ) IP + IP TCP / Web TCP/UDP IP / LAN IM xdsl/ () (FAX) 6bit(6556) FAX FAX ( ) UDP/TCP UDP(User Datagram Protocol) CL (Connectionless) TCP(Transmission Control Protocol) CO

More information

QOS.dvi

QOS.dvi ... 2... 2... 2... 3 DiffServDifferentiated Service... 4 DSCPDiffServ Code Point... 5... 5... 7... 7 PURGE QOS... 8 SET QOS DSCP..... 9 SET QOS HWPRIORITY... 10 SET QOS HWQUEUE... 12 SET QOS SCHEDULING...

More information

携帯グループ(完成版)2007

携帯グループ(完成版)2007 The present condition and the next development of mobile phone industry The present condition and the next development of mobile phone industry WiMAX 90 1 16.5 5 5 13 13 5 5 5 1 NEC 1 2007 07 11 2 2G GSM

More information

資料1-3

資料1-3 WPT (2017) ( ) *JST Center of Innovation ( 13- ) Last 5X * 16 8, 15 7, 14 6 METLAB 16 20, 15 18 WPT * IEEE MTTS Wireless Power Transfer Conference ( 11-, ) MTTS TC-26 (Wireless Energy Transfer and Conversion

More information

PDF.PDF

PDF.PDF 1 2 3 LAN Ethernet( ) TSS(Time Sharing System: ) TSS CPU TSS LAN 3Mbit/s 10Mbit/s 9.6Kbit/s LAN DEC Intel 3 DIX DIX 10Mbit/s 500m 10Base5 LAN IEEE802 IEEE802.3 100Mbit/s 100BaseTX TCP/IP Ethernet LAN 7

More information

Mac OS X Server QuickTime Streaming Server 5.0 の管理(バージョン 10.3 以降用)

Mac OS X Server QuickTime Streaming Server 5.0 の管理(バージョン 10.3 以降用) Mac OS X Server QuickTime Streaming Server 5.0 Mac OS X Server 10.3 apple Apple Computer, Inc. 2003 Apple Computer, Inc. All rights reserved. QuickTime Streaming Server Apple Apple Computer, Inc. Apple

More information

ア 接続 管理 ーバ ー GPS インター ッ S C バス位置情報 バス ー ータ ー バス運行情報 & ニ ース 1 S バス停 ー C コンセン ータ CATV/FTTH GPS Web 2.2 Linux GPS Linux GPS c 2015 Infor

ア 接続 管理 ーバ ー GPS インター ッ S C バス位置情報 バス ー ータ ー バス運行情報 & ニ ース 1 S バス停 ー C コンセン ータ CATV/FTTH GPS Web 2.2 Linux GPS Linux GPS c 2015 Infor IoT 1 1 1 IoT M2M IoT Wi-SUN 920MHz 6LoWPAN MQTT IoT MQTT 1. [1] [2 5] IoTInternet of Things M2MMachine-to-Machine 1 Graduate School of Science and Technology, Meijo University [6] HEMSHome Energy Management

More information

近距離無線通信による機器連携技術

近距離無線通信による機器連携技術 Device Connectivity Technologies Using Short-distance Wireless Telecommunication 田村俊哉 増田勲 あらまし Wi-Fi Bluetooth NFC TV TV Abstract Having seamless connectivity among digital devices in a multi-network environment

More information

Dual Stack Virtual Network Dual Stack Network RS DC Real Network 一般端末 GN NTM 端末 C NTM 端末 B IPv4 Private Network IPv4 Global Network NTM 端末 A NTM 端末 B

Dual Stack Virtual Network Dual Stack Network RS DC Real Network 一般端末 GN NTM 端末 C NTM 端末 B IPv4 Private Network IPv4 Global Network NTM 端末 A NTM 端末 B root Android IPv4/ 1 1 2 1 NAT Network Address Translation IPv4 NTMobile Network Traversal with Mobility NTMobile Android 4.0 VPN API VpnService root VpnService IPv4 IPv4 VpnService NTMobile root IPv4/

More information

本書は 一般社団法人情報通信技術委員会が著作権を保有しています 内容の一部又は全部を一般社団法人情報通信技術委員会の許諾を得ることなく複製 転載 改変 転用及びネットワーク上での送信 配布を行うことを禁止します JF-IEEE802.3

本書は 一般社団法人情報通信技術委員会が著作権を保有しています 内容の一部又は全部を一般社団法人情報通信技術委員会の許諾を得ることなく複製 転載 改変 転用及びネットワーク上での送信 配布を行うことを禁止します JF-IEEE802.3 JF-IEEE802.3 Ethernet に関するインタフェース Interface for Ethernet 第 2 版 2014 年 5 月 22 日制定 一般社団法人情報通信技術委員会 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 本書は 一般社団法人情報通信技術委員会が著作権を保有しています 内容の一部又は全部を一般社団法人情報通信技術委員会の許諾を得ることなく複製

More information

NW-A865 / A866 / A867

NW-A865 / A866 / A867 / / / FM Bluetooth / / 156 NW-A865 / A866 / A867 87 99 1 2 USB USB 3 / MD CD MD CD 155 x- x- 156 MD CD x- Bluetooth CD 30 32 51 52 56 61 Bluetooth Bluetooth Bluetooth 66 6 155 x- mora mora x- ...4... 4...

More information

( ) ( ) ( ) ( ) ( )

( ) ( ) ( ) ( ) ( ) NAIST-IS-MT0751044 2.4GHz W-LAN 2008 8 20 ( ) ( ) ( ) ( ) ( ) 2.4GHz W-LAN ISM(Industrial, Sientific and Medical) 2.4GHz IEEE802.11b/gW-LAN 2.4GHz W-LAN 2.4GHz ISM (Industry Scientific and Medical) ISM

More information

EPSON EasyMP Multi PC Projection Ver.1.00 Operation Guide

EPSON EasyMP Multi PC Projection Ver.1.00 Operation Guide EasyMP Multi PC Projection EasyMP Multi PC Projection EasyMP Multi PC Projection... 5...5...5... 6...6...6... 9... 14... 14... 14... 15 EasyMP Multi PC Projection...15...16...17... 17... 18...18...19...20...

More information

AirMac ネットワーク構成の手引き

AirMac ネットワーク構成の手引き AirMac 1 1 5 6 AirMac 6 7 AirMac Extreme AirMac Express 7 AirMac 8 AirMac Express 8 AirMac 9 AirMac 10 AirTunes 10 AirMac Extreme AirMac Express 10 2 13 15 Mac OS X IP 16 Mac OS X AirMac 3 17 AirMac 17

More information

スライド 1

スライド 1 Gateway Gateway 1 Power Line 2 3 / 10M 1M 100k 10k 03 04 05 06 BlueTooth 5GHz MCPLC HF ZigBee PLC LAN M16C/6S(M306S) IT800PLC Itran IT800MicrosoftSCP M16C-PLC Gateway/Bridge Products With SH7751R,Windows

More information

ppt

ppt / 5 1 (error control) (flow control) / 5 2 Layer 1 gateway: repeater ( ) Layer 2 gateway: bridge ( ) Layer 3 gateway: router (datalink frame) / 5 3 Data link control (error detection / correction) (flow

More information

212 5% NBC (National Broadcasting Company, 3 1 ) 45% ( 1) [1] App Store Netflix Amazon OTT (Over-The-Top, ) MNO (Mobile Network Operator, ) 46% 47% 37

212 5% NBC (National Broadcasting Company, 3 1 ) 45% ( 1) [1] App Store Netflix Amazon OTT (Over-The-Top, ) MNO (Mobile Network Operator, ) 46% 47% 37 213 2 LTE LTE 212 5% NBC (National Broadcasting Company, 3 1 ) 45% ( 1) [1] App Store Netflix Amazon OTT (Over-The-Top, ) MNO (Mobile Network Operator, ) 46% 47% 37% 55% 11% 24% 45% : Google 1: Google

More information

5GHz 作 15-4 DFS 試験時の通信負荷条件定義について 2019 年 3 月 1 日 NTT 東芝 クアルコムジャパン 1

5GHz 作 15-4 DFS 試験時の通信負荷条件定義について 2019 年 3 月 1 日 NTT 東芝 クアルコムジャパン 1 5GHz 作 15-4 DFS 試験時の通信負荷条件定義について 2019 年 3 月 1 日 NTT 東芝 クアルコムジャパン 1 経緯と提案 W53 における通信負荷率は ETSI のパルスパターンを採用する関係で 現行の 50 % から 30% に変更することが合意された ( パブコメの期間は終了 ) 第 13 回作業班で議論されたように ( 参照 :5GHz 作 13-6) 無線 LAN が検出することが可能なパルスパターンと通信負荷率の間には密接な関係がある

More information

2 1: OSI OSI,,,,,,,,, 4 TCP/IP TCP/IP, TCP, IP 2,, IP, IP. IP, ICMP, TCP, UDP, TELNET, FTP, HTTP TCP IP

2 1: OSI OSI,,,,,,,,, 4 TCP/IP TCP/IP, TCP, IP 2,, IP, IP. IP, ICMP, TCP, UDP, TELNET, FTP, HTTP TCP IP 1.,.. 2 OSI,,,,,,,,, TCP/IP,, IP, ICMP, ARP, TCP, UDP, FTP, TELNET, ssh,,,,,,,, IP,,, 3 OSI OSI(Open Systems Interconnection: ). 1 OSI 7. ( 1) 4 ( 4),,,,.,.,..,,... 1 2 1: OSI OSI,,,,,,,,, 4 TCP/IP TCP/IP,

More information

LDR-MA16FU2_WM.n.[.h.E.F.A.}.j...A.._Win.p65

LDR-MA16FU2_WM.n.[.h.E.F.A.}.j...A.._Win.p65 LDR-MA16FU2/WM DVD-RAM DVD+R 2 DVD+R DVD+RW 1 DVD-R 2 DVD-R DVD-RW USB 2.0 High-Speed IEEE 1394 DVD-RAM R/RW DVD LDR-MA16FU2/WM 11 DVD CD DVD 16 DVD DVD+R DVD+RW DVD-R DVD-RW DVD DVD DVD PC DVD 2 DVD+R

More information

( ) 1

( ) 1 / (2014 04 09 ) E-mail: sekido@amp.i.kyoto-u.ac.jp (2014 04 09 ) 1 3 20%7528 50%15 30% 1572372888 (2014 04 09 ) 2 http://www-is.amp.i.kyoto-u.ac.jp/lab/sekido/ (2014 04 09 ) 3 (2014 04 09 ) 4 2006 IT J.

More information

LAN FTP 1 FTP 047 PC 016 FTP 2 021 HTTP 024 iphone Camera Control Pro 2 ii

LAN FTP 1 FTP 047 PC 016 FTP 2 021 HTTP 024 iphone Camera Control Pro 2 ii Jp LAN FTP 1 FTP 047 PC 016 FTP 2 021 HTTP 024 iphone Camera Control Pro 2 ii 3 WT-5 051 A 07 FTP 039 WT-4 UT-1 iii http://www.nikon-image.com/support/ XQD CompactFlash TM SanDisk Microsoft Windows Windows

More information

Input image Initialize variables Loop for period of oscillation Update height map Make shade image Change property of image Output image Change time L

Input image Initialize variables Loop for period of oscillation Update height map Make shade image Change property of image Output image Change time L 1,a) 1,b) 1/f β Generation Method of Animation from Pictures with Natural Flicker Abstract: Some methods to create animation automatically from one picture have been proposed. There is a method that gives

More information

CPE9V1.0&AP615V2.0-C01说明书-电子档

CPE9V1.0&AP615V2.0-C01说明书-电子档 2018 i IP-COM CPE9V1.0 CPE9V1.0 AP615V2.0 + > > 注意 提示 AP ARP AES CPE CCQ DHCP DNS DDNS GMT IP Access Point Address Resolution Protocol Advanced Encryption Standard Customer Premises Equipment Client Connection

More information

i TCP/IP NIC Intel 3com NIC TCP/IP *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP *1 3

i TCP/IP NIC Intel 3com NIC TCP/IP *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP *1 3 i TCP/IP NIC Intel 3com NIC TCP/IP 78 90 500 *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP 79 80 *1 3 ii IPv4 IPv4 *2 *3 IPv6 5 IPv6 UDP UDP IP UDP IP TCP/IP IPv6 IPv4 TCP/IP IPv6 TCP/IP TCP/IP TCP/IP TCP/IP IPv6

More information

SRX300 Line of Services Gateways for the Branch

SRX300 Line of Services Gateways for the Branch SRX300 SRX300 WAN TCO SRX300 SRX300 UTM SRX300 4 SRX300 SRX300 WAN SRX300 1 Gbps 300 Mbps IPsec VPN 1 SRX320 SRX320 WAN SRX320 1 Gbps 300 Mbps IPsec VPN 1 SRX340 SRX340 WAN 1 U SRX340 3 Gbps 600 Mbps IPsec

More information

技術的条件集別表 26.2 IP 通信網 ISP 接続用ルータ接続インタフェース仕様 (IPv4 トンネル方式 -10GBASE LR インタフェース )

技術的条件集別表 26.2 IP 通信網 ISP 接続用ルータ接続インタフェース仕様 (IPv4 トンネル方式 -10GBASE LR インタフェース ) 技術的条件集別表 26.2 IP 通信網 ISP 接続用ルータ接続インタフェース仕様 (IPv4 トンネル方式 -10GBASE LR インタフェース ) [ 参照規格一覧 ] JIS C5973 (F04 形単心光ファイバコネクタ 1998.5.20) JIS C6835 ( 石英系シングルモード光ファイバ素線 1991) IETF RFC791(Internet Protocol 1981.9)

More information

LHD-LAN_E_G_PDF.}.j...A...p65

LHD-LAN_E_G_PDF.}.j...A...p65 LHD-LAN -2- LHD-LAN LHD-LAN Mac OS 9 Mac OS 9 Mac OS 9 Mac OS 9-3- 1 Windows LHD-LAN CD- ROM 1. 1. 2. 2. Mac OS X LHD-LAN CD- ROM 1. 2. Mac OS X 3. 1.CD-ROM 2.Mac OS X 3. -4- 2 1. 2. 3 LHD-LAN 4 OK LHD-LAN

More information

Vol. 41 No Fig. 1 SCS Data transmission network on SCS. HDTV H.261 RGB NTSC VSAT VSAT VSAT 1 HUB VSAT 8) 9) FECForward Error Correction HUB

Vol. 41 No Fig. 1 SCS Data transmission network on SCS. HDTV H.261 RGB NTSC VSAT VSAT VSAT 1 HUB VSAT 8) 9) FECForward Error Correction HUB Vol. 41 No. 10 Oct. 2000 SCS VSAT SCS VSAT VSAT 1.5 Mbps 1.3 Mbps Data-sharing on Inter-university Satellite Network Kikuo Asai, Noritaka Osawa, Kimio Kondo, Kiyohiro Yuki and Katsuaki Yoshida We developed

More information

ERA-201D1

ERA-201D1 4-652-247-01(1) AIBO LAN ERA-201D1 2000 Sony Corporation 6 8 AIBO b 1 AIBO 2 AIBO LAN AIBO 3 AIBO 2 3 AIBO http://www.aibo.com/ 4 AIBO AIBO OPEN-R OPEN-R MEMORY STICK TM ... 2... 9 AIBO LAN... 11... 12

More information

外国語学部_紀要34号(横書)/11_若山

外国語学部_紀要34号(横書)/11_若山 IETF Internet Engineering Task Force MANET Mobile Ad Hoc Network ITS Intelligent Transport Systems ITS ITS VICS Vehicle Information and Communication System ETC Electronic Toll Collection System VICS IETF

More information

SmartLMSユーザーズガイド<講師編>

SmartLMSユーザーズガイド<講師編> SmartLearning Management System SmartLMS (1) (2) (3) (4) (3) (5) Microsoft MS PowerPoint DirectX Windows Windows NT Windows Media Microsoft Corporation Intel Pentium Intel Corporation NEC 2003-2004 NEC

More information

total-all-nt.dvi

total-all-nt.dvi XI W I D E P R O J E C T 1 WIDE Reliable Multicast 1.1 TV 1 1 TCP WIDE JGN/JB SOI (DV) Reliable Multicast (RM) US Reliable Multicast IETF RMT-WG PGM Digital Fountain FEC Tornado Code Ruby Code 1.2 WIDE

More information

untitled

untitled 3GPP2 3.9G 2008 11 25 Innovation - Execution - Partnerships $=100 2,500 2,000 2008 2,200 20.4 20.4% 20.6% 20.4% 17.8% 25% 20% 1,500 15.5% 15.5% 13.6% 14.8% 15% 1,000 10.6% 1,540 1,830 2,281 10% 500 0 $=100

More information

EPSON EasyMP Multi PC Projection Ver.1.10 Operation Guide

EPSON EasyMP Multi PC Projection Ver.1.10 Operation Guide EasyMP Multi PC Projection EasyMP Multi PC Projection EasyMP Multi PC Projection... 5...5...5... 6...6...6... 9... 14... 14... 14... 15 EasyMP Multi PC Projection...15...16...17... 17... 18...18...19...20...

More information

IT 1. IT 2. 2.1. IT 2.2. SKYSEA Client View Government License Light Edition Sky 1500 28 2 15 12 3. 4. 28 3 25 1 5. 5.1. (1) 28 4 1 (2) (3) (4) ISO27001 P (5) ISO/IEC20000 (6) USB 1 (7) OS (8) 1 CPU 4

More information

A book

A book Hitachi Multi Payment Network communications server 3000-3-493-40 P-1B43-6111 Hitachi Multi Payment Network communications server Base 01-03( OS HP-UX 11.0 HP-UX 11i) P-1B43-6311 Hitachi Multi Payment

More information

取扱説明書

取扱説明書 CF-T2 XP 2000 18 PC SD RAM USB LAN LAN DMI Q&A 2 5 8 14 17 18 19 20 Q&A 21 27 32 33 38 40 42 46 2 CF-T2 3 AC 100 V LAN 22 cm 4 LAN * 1 * 1 * 1 CCU* 2 * 2 CCU Windows XP Wireless LAN Windows 2000 Wireless

More information

FlexRay

FlexRay FlexRay 2011 @IT MONOist FlexRay @IT MONOist http://monoist.atmarkit.co.jp Vector Japan Co., Ltd. 目次 1 FlexRay 03 1 03 03 04 X-by-Wire 04 2 05 3 FlexRay 06 4 FlexRay 06 Fixed TDMA Flexible TDMA 06 08 09

More information

情報セキュリティの現状と課題

情報セキュリティの現状と課題 443 IT IT 1 1 2 3 4 1 OECD( 1992 Confidentiality Integrity Availability 2 2000.2. http://www.npa.go.jp/hightech/sec_taikei/taikei.htm 3 2000.12. http://www.kantei.go.jp/jp/it/security/taisaku/2000_1215/1215actionplan.html

More information

8 P2P P2P (Peer-to-Peer) P2P P2P As Internet access line bandwidth has increased, peer-to-peer applications have been increasing and have great impact

8 P2P P2P (Peer-to-Peer) P2P P2P As Internet access line bandwidth has increased, peer-to-peer applications have been increasing and have great impact 8 P2P (Peer-to-Peer) P2P P2P As Internet access line bandwidth has increased, peer-to-peer applications have been increasing and have great impact on networks. In this paper, we review traffic issues for

More information

Microsoft PowerPoint

Microsoft PowerPoint 情報ネットワーク論 I データリンク技術 (2) 門林雄基奈良先端科学技術大学院大学 概要 さまざまなデータリンクの基本形を学習 WAN のデータリンク技術 : 回線交換 LAN のデータリンク技術 : 媒体アクセス制御 これを知らずしてユビキタスを語るな ALOHA CSMA/CD, CSMA/CA データリンク技術の発展 いつでも どこでも はいかにして実現されるか データリンク技術の基本形 (1):

More information

2

2 2 3 ( 4 1) ( 49 8) ( 49 82) ( 49 822) ( 49 823) ( 49 14) ( 49 14) ( 49 14) 49 14 ( 49 17) ( 49 202) IEEE802.11 ( 49 201) IEEE802.11 Bluetooth 5GHz ( 49 203) IEEE802.11 ( 49 204) 5GHz ( 49 21) IEEE802.11

More information