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短距离无线通信技术. Overlay Networks - the global goal. integration of heterogeneous fixed and mobile networks with varying transmission characteristics. Global Star. regional. vertical hand-over. --Mobile Phone GSM CDMA 3G. metropolitan area. CT2 -DECT -PHS. Wireless LAN. campus-based.
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Overlay Networks - the global goal integration of heterogeneous fixed andmobile networks with varyingtransmission characteristics Global Star regional vertical hand-over --Mobile Phone GSM CDMA 3G metropolitan area CT2 -DECT -PHS Wireless LAN campus-based in-house horizontal hand-over Bluetooth/ZigBee(WPAN)
Mobile//Wireless Communication • FDMA--CT2-AMPS IEEE 802. Standard • TDMA--GSM/PHSWPAN--802.15-WBAN • CDMA-One--IS95 WLAN--802.11 • IMT2000--3G WMAN--802.16/802.20 • B3G----OFDM WRAN--802.22
WPAN-- IEEE 802.15.1 --Bluetooth1.0a/1.2/2.0 IEEE 802.15.2 –WLAN & WPAN--Coexist IEEE 802.15.3 --higher bit rate IEEE 802.15.3a –UWB --100/600Mbps/1Gbps IEEE 802.15.3c –millimeter Wave—60GHz IEEE 802.15.4 –ZigBee--lower bit rate IEEE 802.15.4a –IR-UWB--ChirpSpread IEEE 802.15.4b –China WPAN--802.15.4c IEEE 802.15.5 –Mesh Network WSN Wireless Sensor Network WBAN Wireless Body Area Network
蓝牙技术与红外(IrDA)技术、无线局域网标准技术(802.11b)、数字增强无绳电话(DECT)技术规范、家庭无线电射频(HomeRF)、高性能无线电局域网(HiperLAN)等技术既有联系,又有区别,下面对其做简单的比较。蓝牙技术与红外(IrDA)技术、无线局域网标准技术(802.11b)、数字增强无绳电话(DECT)技术规范、家庭无线电射频(HomeRF)、高性能无线电局域网(HiperLAN)等技术既有联系,又有区别,下面对其做简单的比较。