基于威布尔变换多路径包备份策略的研究

Research on Multi-path Packet Redundancy Strategy Based on Wei Bull Transform

分析链路的延时分布特性,根据威布尔变换理论证明,得出链路并联后短时延发生的概率比任何单独一路都大、长时延发生的概率比任何单独一路都小的结论。提出一种特殊的多路径传输方案,将语音中20%的信息复制独立传输,该技术经NS2仿真测试表明,在增加20%的带宽下改善了端到端时延分布和丢包率的降低。

This paper analyzes the delay distribution of link and proves it deriving from the Wei Bull theory： the probability of short delay after the parallel-link is larger than any separate way, and the probability of long delay is smaller than any separate way. A special multi-path transmission program is put forward to copy 20% of voice information and transport it independently. After testing by the NS2 simulation, it shows that end-to-end delay and packet loss rate is obviously improved by increasing 20% of bandwidth.