The discussion initiates with following overview things.
• Multi-channel MAC protocol pros and cons
• Multi-channel hidden terminal problems
• Control channel congestion problems
• Rendezvous problems
The rendezvous mechanism includes a false blocking problem, hidden terminal problem, and channel congestion problem in a multi-channel MAC protocol based wireless ad hoc network.
The control channel congestion problem is discussed by considering short data size packets with the large number of channels.
Split phase is an important discussion in which the channels are splitted into multiple groups to avoid the time synchronization problem. Here the main goal of the discussion is - To solve the false blocking problem.
- To solve the multi-channel hidden terminal problem
- To solve the control channel congestion problem
The related studies are discussed by considering following things.
- Dedicated control channel system
- Split phase system
Channel hopping mechanism
The performance are evaluated through the packet arrival with channel utilization by varying the number of radios and channels. The final discussion is made on 3M -MAC protocol, that is multi-group multi-pipeline multi-channel MAC protocol in wireless ad hoc network.
In a channel model, we consider the n number of channels, divides into x number of groups by considering the n-1 number of data channels, which are to be executed through a pipeline.
The simulation result demonstrates that 3M (n = 9) has better performance in terms of channel utilizations and throughput as compared to 3M (n = 25) and 3M (n = 67). This 3M MAC protocol approach also ensures to avoid following problems i.e. false blocking, multi-channel hidden terminal and the channel congestion.
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