The VoIP Model Research Based on Finite Birth-Death Processes in Multi-channel Wireless Mesh Networks

摘要

In multi-hop wireless networks, using single-channel with single-transceiver over MAC protocol will generate instability of TCP throughput and serious unfair henomenon. Fortunately the situation can be greatly improved by the use of multi-channel model. In this paper, we established a model under limited-state Markov chain, focusing on the channel utilization, average queue time and average queue length in a given client count and the number of channel available to analyze the VoIP Quality-of-Service in detail. With Monte-Carlo Method to validate, we conclude that multi-channel model can significantly improve the overall of network capacity.