| 移动WiMAX网络中跨层快速切换的研究* |
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| 引用本文： | 李明,杨雷.移动WiMAX网络中跨层快速切换的研究*[J].计算机应用研究,2010,27(7):2706-2708. |
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| 作者姓名： | 李明 杨雷 |
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| 作者单位： | 东莞理工学院,电子工程学院,广东,东莞,523808 |
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| 基金项目： | 国家自然科学基金重大资助项目(10890095)；东莞市科技计划资助项目（2008108101006） |
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| 摘 要： | 针对移动WiMAX网络中，基于FMIPv6和DAD (duplicate address detection)机制的快速切换存在着开销大和检测时延长的问题，提出了一种跨层快速切换的策略。新策略在FMIPv6基础上，使用了mSCTP协议和ODAD (optimistic DAD)机制，成功地消除了FMIPv6协议中建立隧道的开销和减少了DAD地址检测的时延。仿真结果显示，新的切换策略将切换时延和分组丢失分别降低了65%和60%。
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| 关 键 词： | 移动WiMAX网络 FMIPv6协议 mSCTP ODAD机制 快速切换性能 |
Research of cross-layer scheme for fast handover in mobile WiMAX networks |
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| LI Ming,YANG Lei.Research of cross-layer scheme for fast handover in mobile WiMAX networks[J].Application Research of Computers,2010,27(7):2706-2708. |
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| Authors: | LI Ming YANG Lei |
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| Affiliation: | (School of Electronic & Engineering, Dongguan University of Technology, Dongguan Guangdong 523808, China) |
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| Abstract: | To improve heavy overhead and long detection latency while implanting FMIPv6 and DAD mechanism for fast handover in mobile WiMAX networks, this paper proposed a cross-layer fast handover scheme. In proposed scheme, used FMIPv6 and mSCTP, and considered ODAD mechanism also. It not only eliminated the overhead of establishing tunnel, but also reduced the overhead of address detection. Evaluating performance of proposed scheme with NS2, simulation results show the packet loss and the handover latency are significantly improved, up to 65% and 60% respectively. |
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| Keywords: | mobile WiMAX(worldwide interoperability for microwave access) FMIPv6(fast handover for mobile IPv6) mSCTP(mobile stream control transmission protocol) ODAD fast handover performance |
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