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利用无线Mesh网多跳传输、灵活组网的特点和VoIP通信性能良好且资费低廉的优势,构建基于无线Mesh网的VoIP通信系统,通过应用层性能测试软件IxChariot对系统的整体性能进行了专业测试,分析MOS值、时延、时延抖动及丢包率4种VoIP通信系统关键性能指标,最后测试了分别采用G.711u、G.711a、G.723.1-ACELP、G.723.1-MPMLQ、G.726及G.729这6种常用语音压缩编码算法时VoIP通信系统的性能,研究结果显示无线Mesh网可以很好的支持VoIP通信系统。
Utilizing the advantages of multi-hop transmission in wireless Mesh network, flexible networking, good VoIP communication performance and low cost, a VoIP communication system based on wireless Mesh network is constructed, and the overall performance of the system is professionally tested by application layer performance testing software IxChariot , And analyzed the key performance indicators of four kinds of VoIP communication systems such as MOS value, delay, delay jitter and packet loss ratio. Finally, we tested the performance of four VoIP communication systems using G.711u, G.711a, G.723.1-ACELP, G.723.1-MPMLQ, G .726 and G.729, respectively. The results show that WMN can support VoIP communication system well.