| 基于相对速度的802.11p车载网络自适应退避算法* |
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| 引用本文： | 魏李琦,肖晓强,陈颖文,徐明,樊海宽.基于相对速度的802.11p车载网络自适应退避算法*[J].计算机应用研究,2011,28(10):3878-3880. |
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| 作者姓名： | 魏李琦 肖晓强 陈颖文 徐明 樊海宽 |
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| 作者单位： | 国防科学技术大学计算机学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目（61003304） |
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| 摘 要： | IEEE 802.11p协议是针对车载环境应用制定的物理层与MAC层标准.车载网络中节点的高移动性和拓扑结构的频繁变更导致网络丢包率增加.为解决车辆移动特性引发的信道访问不公平性问题及降低网络丢包率,提出一种基于相对速度的自适应退避算法RSBA,依据移动节点间相对速度差异优化退避机制.通过NCTUns模拟实验表明,RS...
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| 关 键 词： | 车载网络 IEEE 802.11p 不公平性 基于相对速度的自适应退避算法 模拟 |
Relative-speed-based self-adaptive backoff algorithm for 802.11p VANET |
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| WEI Li-qi,XIAO Xiao-qiang,CHEN Ying-wen,XU Ming,FAN Hai-kuan.Relative-speed-based self-adaptive backoff algorithm for 802.11p VANET[J].Application Research of Computers,2011,28(10):3878-3880. |
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| Authors: | WEI Li-qi XIAO Xiao-qiang CHEN Ying-wen XU Ming FAN Hai-kuan |
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| Affiliation: | WEI Li-qi,XIAO Xiao-qiang,CHEN Ying-wen,XU Ming,FAN Hai-kuan(School of Computer,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | IEEE 802.11p is the standard for PHY and MAC protocol that the IEEE workgroups made for VANETs.According to the main features of vehicular networks such as the high speed and dynamic network topology,the ratio of the loss packets is increasing.In order to reslove the unfairness problem of channel access and decrease the loss ratio,proposed a relative-speed-based self-adaptive backoff algorithm(RSBA).Based on the deviation of the relative speeds,the backoff mechanism got optimized.Through simulation with NCT... |
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| Keywords: | VANETs IEEE 802 11p unfairness relative-speed-based self-adaptive backoff algorithm(RSBA) simulation |
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