【摘要】 为了实现异构IP网络中的视频流业务无缝切换,提出一种快速移动IPv6(FMIPv6)协议框架下的链路层触发垂直切换机制,通过多次触发保证垂直切换的准确性.并且利用视频流业务接收端存在防抖动缓存的特点,在防抖动缓存窗口时间内进行链路层切换.理论分析和仿真结果表明,所提机制能实现低时延垂直切换,满足业务的实时性要求.更多还原

【Abstract】 In response to the request of seamless handoff for streaming video service in heterogeneous IP network,a step-by-step link-layer trigger mechanism is proposed to guarantee the veracity of handoff under fast mobile IPv6(FMIPv6) protocol structure.Analysis and simulation results show that handoff latency could be reduced by making use of de-jitter buffer window of streaming video traffic to satisfy the near real-time service.更多还原