| 摘要: |
| 针对移动自组织网络的工作机理、通信方式和应用，分析了基于地理位置的贪心周界无状态路由（GPSR）算法的路由协议.节点相对速度过快时，GPSR通信性能不稳定.考虑在原有协议的基础上，修改并实现了改进的贪心周界无状态路由（IGPSR）算法.IGPSR协议考虑了源节点、目的节点、备选中继节点的速度和方向，根据节点的当前速度，计算之后某一时间内节点的位置，以此确定最佳中继节点.仿真结果表明：当节点高速移动时，IGPSR协议比GPSR协议具有更低的丢包率. |
| 关键词: 移动自组织网络 贪心周界无状态路由(GPSR)算法 改进的贪心周界无状态路由(IGPSR)算法 |
| DOI：10.3969/J.ISSN.1000-5137.2019.01.012 |
| 分类号: |
| 基金项目:中国航天电子技术研究院空间电子工程中心基础科研计划"十三五"项目（JCKY2017203B082） |
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| An improved method on greedy perimeter stateless routing protocol in mobile ad hoc network |
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BAI Xiaomeng1, YANG Shixin2, LI Dong1
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1.Space Electronic Engineering Center, China Aerospace Electronic Technology Research Institute, Beijing 100094, China;2.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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| Abstract: |
| This paper elaborated the working mechanism,communication mode and application of mobile ad hoc network.Besides,it analyzed the greedy perimeter stateless routing (GPSR) protocol based on geographic location.For the reason that the GPSR protocol may result in a higher packet loss rate because of high relative speed,this paper modified and implemented the improved greedy perimeter stateless routing (IGPSR) algorithm which took into account the speed and direction of the source nodes,destination nodes,and alternative relay nodes.The position of the node could be calculated and predicted with the current speed of the node,thus the best relay node was identified.Simulation experiments showed that the IGPSR routing protocol had a lower packet loss rate than the GPSR routing protocol when nodes moving at high speed. |
| Key words: mobile ad hoc network greedy perimeter stateless routing (GPSR) algorithm improved greedy perimeter stateless routing (IGPSR) algorithm |
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