A cross-layer design for P2P live streaming with graceful handover in mobile IP network

With the development of wireless network and rapidly increasing requirements for mobile computing, peer-to-peer technology on Mobile IP (Mobile P2P) becomes a new focus. Mobile P2P is a more and more interested topic for live streaming in next generation. However, the direct porting of existing P2P application on Mobile IP is difficult to overcome time-critical limitation. Handover under Mobile IP usually leads to overlay failure and session interruption, which lead to long handover delay and intolerable service disruption time. The wireless network has more uncertain dynamics than the wired network, and the dynamics degrade the stable data rate for P2P live streaming. In order to improve the streaming continuity, we propose a cross-layer design to achieve the seamless handover and adjust the playback quality. This article discusses the architecture of present Mobile IP network, and we overcome the challenges to apply P2P service on Mobile IP. The proposed scheme maintains P2P session during IP handover and successfully reroutes packets to the new visited subnet. The motivation is the successful integration of Mobile IP and P2P live streaming, and the goal is the improvement of playback continuity. The simulation results explain that our proposed scheme indeed meliorates the performance of mobile P2P live streaming.