高速 UWB(Ultra Wideband) 通信最新動向 表 -1 無線規格の比較 11a 11b11g 11a 11g 54M 100M IEEE802.11n 11n MIMOMulti Input Multi Output MIMO 600M MIMO
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1 高速 UWB(Ultra Wideband) 通信 Introduction to High Speed UWB (Ultra Wideband) 最新動向 UWB UWB Ultra Wideband 1960 UWB 2002 UWB LAN M UWB 500MHz UWB 図 -1 1UWB 10m HDHigh Definition ; UWB UWB UWB UWB WiMedia Alliance MB-OFDM UWB USB HD UWB UWB 図 -2 LAN PAN 表 -1 LANLocal Area Network 100m IEEEInstitute of Electrical and Electronics Engineers ; IEEE802.11a/b/g 図 -1 UWB とは 図 -2 無線規格の距離と伝送速度の関係 情報処理 Vol.49 No.12 Dec
2 高速 UWB(Ultra Wideband) 通信最新動向 表 -1 無線規格の比較 11a 11b11g 11a 11g 54M 100M IEEE802.11n 11n MIMOMulti Input Multi Output MIMO 600M MIMO 300M PANPersonal Area Network 10m BluetoothIEEE ZigBeeIEEE HD 60GHz IEEE c UWB PAN 480M UWB IEEE802.11n 100M IEEE802.11n UWB UWB UWB FCCFederal Communications Commission ; LAN FCC UWB UWB UWB PCPDA UWB FCC UWB UWB 図 -3 UWB -41.3dBm/MHz75nW/MHz UWB FCC Part15 Subpart F GHz PC 1446 情報処理 Vol.49 No.12 Dec. 2008
3 送 電力 度 dbmmh, 機 国 H 送 電力 度 dbmmh と 機 機能 要 4248Hは2010 要 機能 要 4248Hは2010 要 H 送 電力 度 dbmmh H 図 -3 主要国の電力マスク UWB 無線 UWB CEPTEuropean Conference of Postal and Telecommunications UWB 無線, Administrations ; UWB CEPT EUEuropean Commission ; UWB ETSIEuropean Telecommunications UWBの とのUWB Standards Institute ; 図 -4 DAA(Detect And Avoid) 機能とは UWB UWB 50MHz FCC GHz 6 8.5GHz GHz WiMAX DAA Detect And Avoid GHz dB TPCTransmit Power Controller DAA 図 -4 UWB DAA ETSI UWB UWB 450MHz GHz GHz GHz 4 情報処理 Vol.49 No.12 Dec
4 高速 UWB(Ultra Wideband) 通信最新動向 FCCUWBの I802153aUWB のHi ate H 規格 の 開 規格化 110Mp10m Mandator 200Mp6m Mandator 480Mp3m Optiona I802153aのUWB 方式 MB-OFDM 1(DS-UWB2) MB-OFDMとDS-UWBの標準化 WiMedia AianceのHMACとMACHインフ ースのCMA 標準 成 CMA-368 CMA I802153aの(7) 速 UWB( 無線 規 ) 3448H( 機能 要 ) と H, 4248Hは 置 2008 機能 要 AIB SD-91UWB 無線 スム標準規格 の WiMedia AianceのHMACとMACHインフ ースのISO 標準 成 ISOIC ISOIC の 置 4248Hは2010 機能 要 図 -5 法制度化と規格標準化 GHz TELEC TELEC-T406 ARIBAssociation of Radio Industries and Businesses ; ARIB STD-T UWB AC UWB 50M ARIB UWB UWB 5GHz LAN 2 UWB GHz UWB 2002 IEEE PAN IEEE PHYPhysical layer ; IEEE a UWB PHY IEEE a IEEE a PER 8% 100M PAN PHY MAC Medium Access Control ; IEEE IEEE a MBOA SIG WiMedia Alliance MB-OFDM UWB Forum DS-UWB UWB USB IFImplementers Forum 1394TA Trade AssociationBluetooth SIGSpecial Interest Group WiMedia Alliance MB-OFDM UWB WiMedia Alliance ECMA International PHY MAC ECMA PHY/MAC ECMA-369 UWB ISO ISO/IEC ISO/IEC WiMedia Alliance 350 PHY MAC 図 情報処理 Vol.49 No.12 Dec. 2008
5 ーバンド イバンド 電力 の 1 と 122 国 OFDM DAA 要 開 2010DAA 要 2011DAA 要 図 -6 MB-OFDM 方式と各国のバンド配置の関係 UWB UWB Impulse Radio DS-UWB Direct Sequence - UWB CWave OFDM MB-OFDMMulti Band-OFDM UWB WiMedia Alliance PHY MAC WiMedia PHYMB-OFDM 5 MB-OFDM 図 -6 OFDMOrthogonal Frequency Division Multiplexing ; 1 LAN OFDM MB-OFDM 1 528MHz GHz #1 # # #9 #10 #6 MB-OFDM 図 -7 (a) 3 #1 #1 #2 #3 #1 MB-OFDM OFDM 1 242ns 312.5ns OFDM Guard interval MB-OFDM dBm/MHz 3 5dB=10 log 3 MB-OFDM 53.3M 480M 106.7M 10m480M 2m 2 3 TFITime-Frequency Interleaving FFI Fixed-Frequency Interleaving 情報処理 Vol.49 No.12 Dec
6 高速 UWB(Ultra Wideband) 通信最新動向 は 送 電力 送 電力 13 送 電力 OFDM 方 イ ー 送 電力 ードイン ーバ a 3バンドのッン 例 (FI ード ) 1 バンドの 例 (FFI ード ), の Band3 の例 速度 (M ット ) 図 -7 MB-OFDM 方式の仕組み UWB 無線プラットフォーム ワイヤレス USB A Buetoot A Oter A WiMedia MAC WiMedia H MB-OFDM I 伝送 WiMedia W A rotoco Adaptation aer 各 rotoco 図 -8 WiMedia プラットフォーム #3 1-7 (b) FFI WiMedia MAC 5 WiMedia Alliance MAC 図 -8 MB-OFDM UWB UWB USB Bluetooth v3.0wimedia WLPWireless Logical Link Control Protocol ; TCP/IP PAN IEEE MAC PNCPiconet Coordinator ; LAN PNC PNC PNC WiMedia MAC PNC 図 -9 Superframe ms 256 MASMedium Access Slot 1MAS=256s Beacon Period Data Transfer Period Beacon Slot MAS TDMATime Division Multiple Access ; LAN CSMA/CACarrier Sense Multiple Access with Collision Avoidance ; 1450 情報処理 Vol.49 No.12 Dec. 2008
7 WUSB と W の機 Beacon ot と の MAS の と, 能 WUSB ワイヤレス USB W CI プ ー ン 各機 発 Beacon 図 -9 WiMedia MAC の Superframe 構成 ー HDMIのワイヤレスユニット C CWUSB WHCC,DWA -DAA Wiree USB Adapter Hu D-in CWUSB Hot Adapter 4-ort Hu IO-A CWUSB Hot Adapter 4-ort Hu D CWUSBのHot 機能 C enovo CWUSBのHot 機能 C Wiree Docin Station Wiuet Wiree Docin Station I USB20のWiree ideo ue in HDMIのワイヤレス伝送 CWUSB Certied Wiree USB 表 -2 UWB の開発, 製品化例 UWB 方式 (H) MB-OFDM 4248 製品 MB-OFDM 4248 製品 MB-OFDM 4248 製品 イン ス 310 発表 CWave 3148 発表 USB ー DWA バイス UWB スト HWA USB ー 図 -10 ワイヤレス USB の例 QoSQuality of Service ; TDMA MAS UWB UWB USB2.0 PAN Bluetooth HD 表 -2 UWB UWB 2005 UWB USB USB USB Certified Wireless USB USB USB USB USB 図 -10 Wire Adapter USB2.0 USB HWAHost Wire Adapter USB USB2.0 DWADevice Wire Adapter USB HWA USB DWAPC USB WHCWireless Host Controller WHC PC USB DWA 情報処理 Vol.49 No.12 Dec
8 高速 UWB(Ultra Wideband) 通信最新動向 機 ン BS ン ニ HDMI ー 機 送 機 HDMI ー Wooo ス ー ン id ード スク ン 送 機 レ Wooo U ー の プ ン () 製 -W700H ニ Wooo ス ー ンとワイヤレスユニットの は HDMI ー のみ ニ Wooo ス ー ンの制 は, ー と ン ニ 図 -11 HDMI のワイヤレスユニットの例 USB USB Bluetooth Bluetooth SIG 6GHz WiMedia Alliance MB-OFDM Bluetooth v3.0 UWB HD UWB HD HDMIHigh-Definition Multimedia Interface HDMI AV i HD 1.5G HDMI 1.5G UWB HDMI 100M HDMI 図 -11 Wooo HDMI HDMI Wooo HDMI JPEG 2000 UWB HDMI UWB GHz 9m UWB UWB UWB UWB 3 (1) (2) (1) (2) UWB UWB UWB 6 UWB UWB 1452 情報処理 Vol.49 No.12 Dec. 2008
9 GHz Bluetooth 6GHz 5GHz LAN UWB UWB UWB UWB TPC UWB 50M UWB UWB 参考文献 1PART 15 RADIO FREQUENCY DEVICES, Federal Communications Commission Rules. 2ETSI;EN V1.1.1Electromagnetic Compatibility and Radio Spectrum Matters (ERM) ; Ultra WideBand (UWB) Technologies for Communication Purposes ; Harmonized EN Covering the Essential Requirements of Article 3.2 of the R&TTE Directive (Feb. 2008). 3 UWB UWB ARIB STD-T Ecma International : Standard ECMA-368High Rate UltraWideband PHY and MAC Standard (Dec. 2005). 6UWB UWB USB Bluetooth 1G masaki.noda.sz@hitachi.com UWB UWB HDTV IEEE 情報処理 Vol.49 No.12 Dec
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