Madge Networks 802.11b Manuale Utente Pagina 26

  • Scaricare
  • Aggiungi ai miei manuali
  • Stampa
  • Pagina
    / 45
  • Indice
  • SEGNALIBRI
  • Valutato. / 5. Basato su recensioni clienti
Vedere la pagina 25
802.11 Modes of Operation
Most wireless devices cannot transmit and listen
at the same time on a single frequency, thus
CSMA/CD is not used
The supported modes of operation are:
DCF, Distributed Coordination Function
No central controller; just like Ethernet
Protocols used are:
CSMA/CA (CSMA with Collision Avoidance)
CSMA/CA with virtual channel
–PCF, Point Coordination Function
The base station controls all activities
Prioritized transmissions possible
Vedere la pagina 25
1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 44 45

Commenti su questo manuale

Nessun commento