第九章 無線網路
Post on 05-Jan-2016
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9.1 mobile portable computing devices
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9.2 (peer to peer wireless network)IrDAInfrared Data Association19936 IrDA19600bps115.2Kbps4Mbps
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19996Windows98IrDAWindows98PC
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9.3 Wireless LAN(1)(2)(3)
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IEEE 802.11(1)(2)multiple transfer rate(3)DCFdistributed coordination functionPCFpoint coordination function(4)bandwidth(5)(6)IEEE 802.11 (1)Station Services, SS(2)Distribution System Services, DSS
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IEEE 802.11
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Infrastructure Wireless LANaccess pointAd Hoc Wireless LAN
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9.4 WAPWAP InternetIntranetcellular phonemobile hostWAP Forum WAP
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WAP(World Wide Web)HttpCPU WAPWML(Wireless Markup Language)HTMLHTML/WMLWAP GatewayWAPWAP(1)(2)(3)(4)
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WAP
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Wireless Application EnvironmentWAEWWWWAEWAPWireless Session ProtocolWSPWSPWTPWDPWireless Transaction ProtocolWTPWTPWDP
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WAP(1)ClientWWW WAP (2)ClientWAP
WAP
Client ()
WAP
WWW
WWW
WAP
WAP
WAP
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WAPWMLWML1.4KbyteGSM 9.6Kbps56KbpsGPRS110KbpsWAP
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Wireless Transport Layer SecurityWTLSWTLSIndustrial Standard TLS Protocol(Secure Sockets Layer,SSL)Wireless Datagram ProtocolWDPWDPWAPBearerWAP(SMSShort Message Service)(Packet Data)(Circuit-switched Data)
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9.5 -
(FDDI)-LACE Model 0B2000E
LACE Model 0B2000ELACE Model 0B2000E
(FDDI)
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WAP -WAPWAPWML(Wireless Markup Language)
()
9
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Windows98Digital RoamAbout-Digital RoamAboutDigital RoamAbout http://www.edu.tw/
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:(1)(2)(3)(4)-(5)-(6)Windows98ping 140.129.26.113-
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