| 基于拥塞控制的无线多媒体传感网地理位置路由协议 |
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| 引用本文： | 金彦亮,张勇,薛用,张震.基于拥塞控制的无线多媒体传感网地理位置路由协议[J].上海大学学报(自然科学版),2012(3):227-230. |
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| 作者姓名： | 金彦亮 张勇 薛用 张震 |
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| 作者单位： | 上海大学特种光纤与光接入网省部共建重点实验室,上海200072 |
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| 基金项目： | 上海市重点学科建设资助项目(S30108);上海市科委重点实验室资助项目(08DZ2231100);上海市科委重点资助项目(10511501303);上海市教委科研创新基金资助项目(09YZ33);上海市经信委重点资助项目(11 CH-11) |
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| 摘 要： | 无线多媒体传感网络(wireless multimedia sensor network,WMSN)是一个能量受限的网络,能量问题直接影响到网络的生命期.如果知道目的节点的地理位置信息,路由请求(routing requests,RREQs)就可以减小包的转发范围,减少不必要的能量消耗.地理位置路由(location aided routing,LAR)基于该思想被提出.在LAR协议的基础上,利用媒体访问控制层(media access control,MAC)的拥塞信息,提出基于拥塞控制的LAR路由协议——ILAR(improved LAR).仿真结果表明,ILAR具有路由开销少、吞吐量大和包时延小的特点,适合作为WMSN的路由协议.
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| 关 键 词： | 无线多媒体传感网络 请求区域 拥塞信息 地理位置路由 ILAR |
Location Aided Routing Protocol Based on Congestion Control in Wireless Multimedia Sensor Network |
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| JIN Yan-liang,ZHANG Yong,XUE Yong,ZHANG Zhen.Location Aided Routing Protocol Based on Congestion Control in Wireless Multimedia Sensor Network[J].Journal of Shanghai University(Natural Science),2012(3):227-230. |
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| Authors: | JIN Yan-liang ZHANG Yong XUE Yong ZHANG Zhen |
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| Institution: | (Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Wireless multimedia sensor network(WMSN) is an energy-constrained network.Energy issue of WMSN directly affects the network lifetime.If the location of a destination node is known,routing requests(RREQs) can reduce forwarding range of the packet,and therefore unnecessary energy consumption.Location aided routing(LAR) thus appears.This paper proposes an improved LAR (ILAR ) protocol to conduct cross-layer routing design by using congestion information of the media access control(MAC) layer.Simulation results show that ILAR possesses several features such as low overall latency,small routing overhead and high throughput,which are suitable for WMSN routing protocol. |
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| Keywords: | wireless multimedia sensor network(WMSN ) request area congestion information location aided routing(LAR) improved LAR(ILAR) |
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