基于车辆自组网络的按需功率控制算法  

On-Demand Power Control Algorithm Based on Vehicle Ad Hoc Network

作　　者：杜珊[1] 刘富强[1] 徐尚志[1] 王新红[1] 

机构地区：[1]同济大学电子与信息工程学院,上海201804

出　　处：《计算机工程》2009年第16期97-100,共4页Computer Engineering

基　　金：国家"863"计划基金资助项目"基于移动中继技术的车辆通信网络的研究"(2007AA01Z239)

摘　　要：针对车辆自组网络在车辆较密集的情况下,安全信息容易发生频繁碰撞以及时延变大等问题,提出一种基于车辆自组网络的按需功率控制算法,发送节点根据背景安全信息需求节点的位置,动态地调节背景安全信息发送功率,通过传递安全信息提高驾驶的安全性。仿真实验结果表明,该算法可以有效减小时延,提升安全信息正确接收率,从而提高车辆自组网络的安全预警功能。Aiming at the problems that the safety information is easy to collide frequently, and the time delay becomes larger when the vehicle density is high in Vehicle Ad Hoc Network（VANET）, an On-Demand Power Control Algorithm（ODPCA） based on VANET is proposed. According to the node locations of background safety information demand, the nodes adjust their send power dynamically. By using the safety information transferred between the vehicles, the driving safety is promoted. Simulation experimental results show this algorithm can reduce the time delay, improve the correct reception rate of safety information, and enhance the safety prewarning function of VANET.

关 键 词：车辆自组网络 功率控制 车辆安全 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]