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基于位置信息的MANET按需QoS路由算法

On-demand location-aided QoS routing for mobile ad hoc networks
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摘要 针对移动自组织网络QoS路由开销大的问题,研究了一个基于位置信息的路由消息转发方法,该方法可降低路由开销并提高路由成功率.在此基础上提出了一种路径优化的基于位置信息的QoS路由算法ODLAQR.不同于利用位置信息的路由算法,ODLAQR算法将路由消息转发域进一步分为Green区和Yellow区两个不同的区域,处在不同区域的节点采用不同的路由消息转发策略,最终根据费用选择最优路径传输数据分组.ns2仿真结果表明,和一些QoS路由算法相比,ODLAQR算法能够以较小的路由开销取得较高的路由成功率. To reduce control overhead and improve routing success ratio, a new method forwarding routing messages is put forward. Based on this method and path optimization, an on-demand QoS routing algorithm, named on-demand location-aided QoS routing （ODLAQR）, is proposed for MANET （mobile ad hoc networks）. Differing from some location-aided routing algorithms, the forwarding region in ODLAQR are divided further into Green zone and Yellow zone, two different forwarding strategies for the routing messages are presented respectively for nodes in these two zones, and finally one optimal path is selected to transmit data packets according to the cost of all paths. The results of simulation in ns2 show that ODLAQR can achieve the higher routing success ratio and the lower control overhead than that ofsome QoS routing algorithms for MANET.
作者 江国星 陈琴
机构地区 华中科技大学电子与信息工程系
出处 《华中科技大学学报（自然科学版）》 EI CAS CSCD 北大核心 2010年第6期92-96,共5页 Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金 国家自然科学基金资助项目(60502023)
关键词 移动自组织网络 服务质量 路由 路由消息 节点位置信息 mobile ad hoc networks （MANET） quality of service （QoS） routing routing messages location aided
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献12

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二级参考文献11

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华中科技大学学报（自然科学版）
2010年 第6期

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