IEEE802.16e跨层切换的性能分析

Performance analysis of cross-layer handover in IEEE802.16e

目的为了提高切换性能,将快速分层移动IPv6(F-HM IPv6)应用到IEEE802.16e中提出了一种新跨层切换方法。方法通过将MAC层切换和IP层切换有效结合,使MAC层切换和IP层切换交叉进行。结果该方法与现有的切换方法相比,具有更小的切换时延和服务中断时间。对不同的切换方法的数据传输时间进行了分析,不同的参数对数据传输时间有不同的影响。结论该方法具有好的切换性能。

Aim To improve the handover performance,a new cross-layer scheme designed for fast handover in hierarchical mobile IPv6 over IEEE802.16e is proposed.Methods This scheme is the combination of MAC layer handover and IP layer handover,which makes the two layers′ handover execution alternately.Results Analysis results show that this scheme has less handover latency and service disruption time than existing methods.The analysis of packet delivery time in different method is given,the result of which is that different parameter has different influence on packet delivery time.Conclusion The scheme has better handover performance.