基于SIP的VoIP系统在MANET中的应用研究

Application research on SIP-based VoIP system over MANET

由于MANET具有自组织、无中心等特点,传统的VoIP体系结构不能直接应用在MANET之上,这就要求对传统VoIP系统进行一定的改造,使之能够适应MANET环境。文章提出将P2P的簇状组网结构引入SIP,从而实现在MANET上构建基于SIP的可灵活扩展的VoIP通信系统;分析了在该架构中主要操作的典型工作机制,采用本方案的VoIP系统既可以适应MANET环境的需求,又可以与现有的SIP系统无缝通信;最后,展望了其未来的研究方向。

Traditional VoIP architecture can＇t be brought to MANET environment because of the features of MANET, such as self-organization, centerless, etc. The alteration of traditional VolP architecture is obligatory for being seasoned with MANET environment. This paper proposes a scheme of designing VolP system on MANET by using SIP. The scheme relies on extension SIP UA and the import of P2P cluster shape web structure. This paper analyzes the working mechanism of main function. The VoIP system which adopts the scheme can either fit MANET or communicate with current SIP system seamlessly. At last an outlook of the future work is given in the paper.