Advance Computer Networks (Lecture 02)
2. Advanced Medium Access Control Protocols 2.1 Traditional CSMA/CD 2.2 The 802.11 MAC Protocol for Wireless LANs ............................................................................................................ What is a LAN? Let collisions take place, detect them, repeat the transmission. When the station finds the medium idle it transmits immediately . When it finds the medium busy it waits for the end of the other transmission and then starts its own transmission immediately (transmission probability = 1 ). When the station finds the medium idle it transmits immediately . When the station finds the medium busy it stops sensing , waits a random exponential back off time and then starts a new transmission attempt . to communicate directly with each other, without connection to a wired network. The stations do not have a “ forwar -ding” functionality. The IBSS only permits one-hop communication (1...
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