一种多接口多信道VANET动态频谱分配算法研究  

Research of dynamic spectrum allocation algorithm for multi-radio multi-channel VANET

作　　者：孙智乐[1,2] 李德敏[1,2] 陶冰 刘潇[1,2] 

机构地区：[1]东华大学信息科学与技术学院,上海201620 [2]数字化纺织服装技术教育部工程研究中心,上海201620

出　　处：《电子技术应用》2015年第3期90-92,96,共4页Application of Electronic Technique

基　　金：国家自然科学基金(71171045);上海市科委保密专项项目(11JG0500300)

摘　　要：为了实现多接口车载自组织网络(VANET)车辆节点之间通信频谱的动态分配,提出了一种基于信道反馈的动态频谱分配算法。在图论着色模型的基础上,分析信道的质量情况,定义了信道反馈矩阵,车辆节点可以根据信道反馈矩阵中元素的值来自主选择可用信道,从而实现了信道的最大化利用。通过软件仿真比较,可以看出该算法实现了频谱的动态分配,在兼顾最大化系统总收益的前提下大幅度减少了算法的时间开销,显著提高了多接口多信道V ANET的网络性能。In order to achieve dynamic allocation of communication spectrums between the vehicle nodes in muhi-radio VANET, a dynamic spectrum allocation algorithm based on channel feedback is proposed. This paper analyzed the quality of channel, defined channel feedback matrix. The vehicle nodes could select available channel according to the values in channel feedback matrix. So as to realize the maximization of channel utilization.Through software simulation, it can be seen that this algorithm reduces time overhead significantly under the precondition of the maximize system total revenue and significantly improves the network performance of muhi-radio multi channel VANET.

关 键 词：多接口 车载自组网 图论着色 信道反馈 频谱分配 

分 类 号：TN929[电子电信—通信与信息系统]