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 UWB 10Kbps 100K 1M 10M 100M 1G
6 LAN IEEE802.11(1997) 802.11b(1999,2.4GHz/11Mbps) 802.11a(1999,5GHz/54Mbps) 802.11g(2003,2.4GHz/54Mbps) 802.11:DSSS IrDA
IEEE802.11 7 LLC MAC IEEE802.1 HLLI IEEE802.2 LLC IEEE802.11 CSMA/CA IEEE802.3 CSMA/CD 802.11PHY 2.4GHz DSSS 2.4GHz FHSS.11bPHY 2.4GHz DSSS 11aPHY 5GHz OFDM.11gPHY 2.4GHz OFDM PBCC DSSS 10BASEx 100BASEx 1000BASEx OSI LAN
802.11 8 1M/2Mbps 1M/2M 5.5M/1M bps 6 54M bps 6 54M bps
2.4GHz ISM 9 ARIB STD-33 #14 1993 ARIB STD-T66 #1-13 1999 2.4GHz 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 2.49 2.50 5GHz WRC-03 2003 LAN 2012 STD-T71 2007 5.6GHz T71 T71 2005 4.9&5.3GHz T71 2000 5.2GHz 4.9GHz 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 ARIB Association of Radio Industries and Businesses of Japan
802.11a/b/g 10 802.11b/g 14ch 3ch ch1 ch6 ch11 ch2 ch7 ch12 ch3 ch8 ch13 ch4 ch9 ch11 11b ch5 ch10 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 2.49 2.50 802.11a 180ch 8+11ch ch36 ch40 ch44 ch48 ch52 ch56 ch60 ch64 ch37 ch41 ch45 ch49 ch53 ch57 ch61 ch65 ch38 ch42 ch46 ch50 ch54 ch58 ch62 ch66 ch39 ch43 ch47 ch51 ch55 ch59 ch63 ch67 5.17 5.19 5.21 5.23 5.25 5.27 5.29 5.31 5.33 5.35
5Ghz W53/56 11 J 52 W 52 J 52 W 52 J 52 W 52 J 52 W 52 W 53 W 53 W 53 W 53 W 56 W 56 W 56 W 56 W 56 W 56 W 56 W 56 W 56 5.15GHz 5.25 5.47 J52 2005 5 W53 W56 W52 2005 5 2005 5 2007 1 DFS dynamic freq. selection TPC transmitter power ctrl
12 2.4/5GHz LAN 19GHz 25Mbps 25GHz 108Mbps 60GHz 156Mbps
13 LAN CSMA/CA 35-50% ACK 802.11b(11Mbps) 5Mbps
CSMA/CA 14 802.3 CSMA/CD Carrier Sense Multiple Access with Collision Detection 802.11 CSMA/CA Carrier Sense Multiple Access with Collision Avoidance Carrier Sense Multiple Access Collision Detection Collision Avoidance
15 hidden node A B C A B C
16 RTS/CTS A B RTS CTS C CTS A C 1.A C RTS 2.C A CTS 3.B C CTS C
17 1. LAN 2. 3. LAN 4. 802.11
18 http://ja.wikipedia.org/
19 AM FM http://ja.wikipedia.org/
20 ex. ex.
21 Vc :, Vcm :, fc : Vs :, Vsm :, fs : v am :, (f c f s ) : (LSB), (f c + f s ) : (USB) http://ja.wikipedia.org/
22 ASK(Amplitude Shift Keying) FSK(Frequency Shift Keying) PSK(Phase Shift Keying) http://www.soi.wide.ad.jp/class/20000002/slides/03/06.html
23 BPSK QPSK 8PSK 16QAM http://ja.wikipedia.org/
24 FDMA TDMA CDMA http://ja.wikipedia.org/
Spread Spectrum CDMA 1. DSSS (Direct Sequence Spread Spectrum ) CDMA 2. FHSS (Frequency Hopping Spread Spectrum ) 802.11 Bluetooth 25
SS 26 DSSS FHSS
DSSS 27
FHSS 29 ch1 3 3 2 2 1 3 2 1 2 3 2 ch2 1 ch3 1 2 1 3 2 3 1 3 1
OFDM Orthogonal Frequency Division Multiplexing 30 1. - 2. -
http://ja.wikipedia.org/ 31
32 OFDM S/P IFFT GI GI FFT P/S
OFDM 33 FFT/IFFT DSP LSI LAN ADSL PLC WiMAX IEEE802.16 LTE 3.9G
34 1. LAN 2. 3. LAN 4. 802.11
LAN 35 600Mbps MAC 1. MIMO 2. 40Mhz /150Mbps 1..11n 2.4G 2ch ch3,11 2..11a/n 5G 5ch ch102,110,118,126,134 3. MIMO 4 &40MHz=600Mbps
MIMO (Multilpe-Input Multiple-output) 36 n x n n IEEE 802.11n 2009
MIMO 802.11n (Multilpe-Imput Multiple-output) 37
38 MIMO OFDM
39 1. LAN 2. 3. LAN 4. 802.11
40 LAN HiSWANa HiperLAN Wireless 1394 WiMAX Mobile WiMAX UWB (Ultra Wide Band) Wireless USB ZigBee
41 WMAN 50Km WiMax WLAN 100m 802.11 WPAN 10m ZigBee Bluetooth UWB 10Kbps 100K 1M 10M 100M 1G
WiMAX (Worldwide Interoperability for Microwave Access) 42 MAN 135Mbps/50Km IEEE802.16-2004 10Km IP
43 Mobile WiMAX LAN WiMAX IEEE 802.16e 2.5GHz/3.5GHz/5.8GHz Scalable OFDMA 2-3Km PHS=Mobile WiMAX? LTE 3.9G
44 WMAN 50Km WiMax WLAN 100m 802.11 WPAN 10m ZigBee Bluetooth UWB 10Kbps 100K 1M 10M 100M 1G
45 UWB (Ultra Wideband) 3.1G-10.6GHz 480Mbps 10m
UWB 46 http://www.nisoc.or.jp/~suzuki/040124/uwb_1-24-2004.pdf 20% 500MHz UWB UWB UWB
47 UWB 3.4 4.8 7.25 10.25GHz 3.4GHz 4GWiMAX 1. MultiBand OFDM MS,Intel,SONY WiMedia Alliance 2. DS-UWB Motrola UWB Forum IEEE 802.15.3a ISO/IEC WiMedia Wireless USB WiMedia USB Bluetooth 802.11 WiMedia
48 WiMedia Wireless USB Wireless IEEE1394 Bluetooth TCP IP Adaptation Layer Adaptation Layer Adaptation Layer Adaptation Layer (WiNET) WiMedia UWB Radio Platform WiMedia MAC WiMedia PHY MB OFDM UWB
49 WMAN 50Km WiMax WLAN 100m 802.11 WPAN 10m ZigBee Bluetooth UWB 10Kbps 100K 1M 10M 100M 1G
ZigBee 50 250Kbps/30m / FFD RFD 16bit ISM 2.4GHz IEEE802.15.4 Bluetooth IEEE802.15.1 http://zigbee.iii.org.tw/images/zigbee_clip_image002.jpg
51 1. RF No.1,2,3 2008 CQ 2. LAN http://telec.org/news/ 3. LAN http://www.allied-telesis.co.jp/products/list/wireless/knowl.html#denpa 4. BB WORDS http://bb.watch.impress.co.jp/cda/bbword/