Abstract:

With the development of mobile networks and smart mobile terminals, researches on mobile P2P live streaming systems become popular. However, extending the P2P live streaming system faces two obstacles: one is the differentiated services and the other is the Quality of Service (QoS) during the domainacross movement of mobile terminals . In the paper, an adaptive multirate streaming service method is proposed to deal with the differences between mobile terminals and PCs. Multiple substreams of one stream with different rates are distributed in one P2P distribution topology. Clients buffer all or part of substreams according to their situations and abilities. They can adaptively change their buffer and the playing substream according to the variation of the network environment, and provide differentiated services for their neighbors. Meanwhile, a crossdomain mobile QoS mechanism containing data prebuffering and temporarystoring is proposed. Experimental results demonstrate the efficiency of the ways presented for the QoS in the Mobile P2P Live Streaming System.

Key words: mobile P2P network;streaming;crossdomain movement;multirate