Wireless
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Wireless

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lezioni sulle wireless scaricate

lezioni sulle wireless scaricate

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Wireless Presentation Transcript

  • 1. Corso di Studi in Ing. delle Telecomunicazioni LAUREA in INGEGNERIA DELLE TELECOMUNICAZIONI RETI DI TELECOMUNICAZIONI Stefano Giordano Lezione n.16 “Wireless LAN IEEE 802.11” Gruppo di Ricerca in Reti di Telecomunicazioni Dipartimento di Ingegneria della Informazione: Elettronica, Informatica, Telecomunicazioni 1
  • 2. Wireless LANs • IEEE 802.11 • Other examples (ETSI HIPERLAN - 20 Mbps, Bluetooth 700 Kbps, IrDA 75 Kbps, IrDA-D 115Kbps-4Mbps) • Bandwidth: 1 or 2 Mbps on the first release 5.5 or 11 Mbit/s on its second generation 54 Mbit/s on its third generation 108 Mbit/s on its fourth generation • Physical Media – spread spectrum radio (2.4GHz or 5 Ghz) – diffused infrared (10m) 2