Performance Analysis for Split Phase Multi-Channel Protocols

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In order to accurately analyze the throughput performance of split phase (SP) multi-channel protocols in IEEE 802.11, the performance analysis models for synchronous SP (SSP) and asynchronous SP (ASP) multi-channel protocols are proposed and mathematical normalized throughput is analyzed. The main conclusions are that with the increase of the number of channels the maximum increase of the throughput of SSP shows a downward trend and the throughput of ASP in the state of assigning control channel are the same with SSP. When the number of channels is increased to satisfy the state transfer conditions, ASP transfers from the state of assigning control channel to no assigning control channel and then the throughput of ASP reaches the maximum. With the data rate doubled, the number of channels needed for state transfer is decreased. The maximum throughput of SSP is related to the maximum available number of channels, but that of ASP is not directly related to the number of channels and it is related to the state.
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Wireless Mesh Network; Multi-Channel; Split Phase (SP)

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