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一种基于RSSI的车载WiFi相遇时间预测方法 被引量：1

A Predictive Method of Vehicular WiFi Meeting Time Based on RSSI
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摘要 随着WiFi技术的普及,在移动车辆上使用路边AP进行数据通信变得越来越容易.使用车载WiFi通信有一个关键问题是如何选择最优的AP.针对该问题,提出了一种通过监测AP接收信号强度RSSI的变化趋势来预测车辆与AP相遇时间的算法.车载WiFi通过预测不同AP的相遇时间选择预测时间较长的AP.实验分析表明,在确定无线电信号衰减因子的情况下,通过多次采样可以减小误差,相遇时间预测结果的准确性较高.算法提高了平均连接时间,减少了切换次数,增强了通信稳定性. 随着WiFi技术的普及,在移动车辆上使用路边AP进行数据通信变得越来越容易.使用车载WiFi通信有一个关键问题是如何选择最优的AP.针对该问题,提出了一种通过监测AP接收信号强度RSSI的变化趋势来预测车辆与AP相遇时间的算法.车载WiFi通过预测不同AP的相遇时间选择预测时间较长的AP.实验分析表明,在确定无线电信号衰减因子的情况下,通过多次采样可以减小误差,相遇时间预测结果的准确性较高.算法提高了平均连接时间,减少了切换次数,增强了通信稳定性.
作者 杜国平 童超 高宾 牛建伟
机构地区 北京航空航天大学计算机学院
出处 《计算机研究与发展》 EI CSCD 北大核心 2010年第S2期115-120,共6页 Journal of Computer Research and Development
基金 国家自然科学基金项目(60702031 60873241) 国家"八六三"高技术研究发展计划基金项目(2008AA01Z217) 软件开发环境国家重点实验室基金项目(SKLSDE-2010ZX-13)
关键词 车载WiFi 接收信号强度 相遇时间 无线接入点 vehicular WiFi RSSI meeting time AP
分类号 TP3 [自动化与计算机技术—计算机科学与技术]
  • 相关文献

参考文献10

  • 1周艳,李海成.基于RSSI无线传感器网络空间定位算法[J].通信学报,2009,30(6):75-79. 被引量：65
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二级参考文献11

  • 1郭鹏,赵湛,方震,张玉国.分层复用WSNs节点及其软件平台设计[J].微计算机信息,2006(11Z):49-51. 被引量：2
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共引文献320

同被引文献2

  • 1Gast;M.S.802,11无线网络权威指南[M]南京:东南大学出版社,2007.
  • 2K.Vavelidis,I.Vassiliou,T.Georgantas,A.Yamanaka, S.Kavadias, G.Kamoulakos, C.Kapnistis,Y.Kokolakis,A.Kyranas,P.Merakos,I.Bouras,S.Boursa,S.Plevridis and N.Haralabidis. A Dual-Band 5,15-5,35 GHz,2,4-2,5GHz 0,25um CMOS Transceiver for 80211 a/b/g Wireless LAN[J].IEEE Journal of Solid-State Circuits,2004,(07):1180-1184.

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计算机研究与发展
2010年 第S2期

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