L16 - Chapter 4 Medium Access Control Sublayer This chapter...

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Chapter 4: Medium Access Control Sublayer This chapter deals with broadcast channels. In a broadcast channel, a message sent goes through some medium to all other stations. Ideal for broadcasting the same information to every station in the network. But in many or most cases the network is used for one-to-one communication at a given time. The problem is medium access - to ensure that a sender has access to send for some time without interference. This has aspects of a link layer and a network layer task. The network access problem - who gets to use the channel at a given time.
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A to B have a link, but it is shared.
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The difference between statistical multiplexing and multiaccess.
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However, in multiaccess the potential senders normally are not great distances apart (except satellite), so they usually form a Local Area Network, or LAN. For this reason, Chapter 4 deals with all kinds of LANs, not necessary all of the broadcast type - some could use switching. In the broadcast LAN, there is one common
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L16 - Chapter 4 Medium Access Control Sublayer This chapter...

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