Abstract: There is a lack of inter-domain handoff research in the related research of mobility support to heterogeneous Wireless Mesh Network (WMN). Aiming at this problem, this paper proposes a hierarchical handoff scheme with inter-domain mobility support. It handles the intra-domain and inter-domain handoff respectively to reduce the handoff latency. It uses data buffering to eliminate the packet loss and support a fast moving of the mobile node. Simulation result shows that the scheme supports a mobile node moves at 23 m/s. In the inter-domain handoff, the average packet loss reduces by 66.7% to 95.5%.

Key words: heterogeneous Wireless Mesh Network(WMN), intra-domain handoff, inter-domain handoff

摘要： 针对现有异构无线Mesh网络缺乏对域间移动切换支持的问题，提出支持域间切换的异构无线Mesh网络层次化切换方案，区分域内切换和域间切换，降低切换时延。采用缓存策略，有效降低丢包率，支持终端的快速移动。仿真结果表明，该方案可支持速度达23 m/s的终端移动，在域间切换时，平均丢包数减少66.7%~95.5%。

关键词: 异构无线Mesh网络, 域内切换, 域间切换

CLC Number: 

• TP393