Zero Packet Loss Hand-off Mechanism in SIP-based Wireless Networks

摘要

As mobile wireless networks increase in popularity and pervasiveness, seamless mobility is an important issue for uninterrupted services in ubiquitous network environments. In this paper, we propose a zero packet loss handoff mechanism for real-time streaming services, which is based on the SIP protocol cooperated with mobile agent, multicast, and buffering technique to overcome the impact of handoff delay in SIP-based wireless networks. The simulation results reveal that the proposed scheme has a great performance in packet loss and higher QoS during handoff. Furthermore, we realize and evaluate the proposed scheme by applying MP3-music streaming on the system.