基于跨层设计的多判据AODV路由优化机制
Cross-layer Based Multi-metrics AODV Routing Optimization
作者：李劼(北京邮电大学 电子工程学院,北京 100876)；李军(中国移动河南通信公司, 河南 郑州 450000)；李智(四川大学 电子信息学院, 四川 成都610064)
Author：(School of Electronics Eng., Beijing Univ. of Posts and Telecommunications,Beijing 100876,China)；(The Henan Branch of the China Mobile Communication Co.,Zhengzhou 450000,China)；(School of Electronics and Info. Eng., Sichuan Univ.,Chengdu 610064,China)
收稿日期：2008-01-23 年卷（期）页码：2008,40(4):153-159
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：路由优化; 跨层设计; MESH; AODV
Key words：routing optimization;cross-layer;MESH;AODV
基金项目：国家自然科学基金资助项目(60572119);爱立信（中国）公司资助项目
中文摘要
针对无线Mesh网络中传统AODV协议路由判据单一从而导致路由性能较差的缺陷，提出一种多判据AODV跨层路由优化机制ACRO(AODV Cross-layer Routing Optimization)。该机制基于跨层设计思想，采用最小跳数与来自物理层和MAC层的多种路由判据相互协作，考虑了传播环境和接入性能，在路由算法中定义了混合多维路由判据, 并提出多判据AODV跨层路由优化机制。理论分析和NS2仿真结果证明，这种路由优化机制提高了吞吐量，降低了网络时延和载荷，路由性能得到明显改善。
英文摘要
This paper introduced a new cross-layer hybrid metric for ad hoc on-demand distance vector (AODV) routing in WMN,based on the information obtained from wireless channel conditions from physical layer and link quality and congestion from MAC layer. Simulation results demonstrated that the new metric can greatly improve AODV routing performance in terms of end to end delay and throughput in contrast to the traditional metric of minimum hop.
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