一维线性稀疏车载自组网感染路由性能研究  

Performance analysis of epidemic routing in one-dimensional linear sparse VANETs

作　　者：孙海峰[1] 罗光春[1] 秦科[1] 

机构地区：[1]电子科技大学计算机科学与工程学院,四川成都611731

出　　处：《计算机工程与设计》2014年第1期82-86,共5页Computer Engineering and Design

基　　金：四川省科技厅基金项目(2012FZ0063;2012GZ0088)

摘　　要：为获取感染路由算法在一维线性车载自组网(如高速公路)进行消息浸透感染的性能,分析了在此情境下进行消息浸透感染传递过程的特性,通过建立吸收有限状态马尔科夫链模型,得到了感染路由浸透延迟的闭式表达式。仿真结果表明,在车辆密度较低的情况下,或者在无线传输半径较低的情况下,消息感染浸透延迟的仿真实验结果与理论分析结果吻合程度较好。To get the message delivery performance of percolation delay of epidemic routing in one-dimensional linear sparse vehicular ad hoe networks （e. g. , freeway）, features of the process are analyzed, the stochastic model of an absorbing finite-state Markov chain is presented, and the closed-form expressions of the expected percolation delay of message broadcast are gotten. Simulation results confirm the accuracy of the analysis obtained from the proposed model both in the Condition of sparsely popula ted environment and in the lower wireless transmission range setting.

关 键 词：感染路由 统计模型 马尔科夫链 浸透延迟 车载自组网 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]