基于北斗系统的QoS保障地理位置路由算法  

QoS-supported Geography Position Routing Algorithm Based on Baidu System

作　　者：周灵[1,2] 杨文茵[1,2] 

机构地区：[1]佛山大学计算机科学与技术系,广东佛山528000 [2]中南大学信息科学与工程学院,长沙410083

出　　处：《计算机工程》2012年第11期73-76,共4页Computer Engineering

基　　金：国家自然科学基金资助项目(61103203);广东省自然科学基金资助项目(10152800001000016)

摘　　要：基于北斗定位/导航系统,研究无线多媒体传感器网络(WMSNs)定位技术在地理位置信息路由算法中的应用,根据贪婪策略和地理位置信息设计一个无线多媒体传感器网络QoS支持路由算法。该算法与SPEED算法一样,提供软时延保障。同时,优化的代价函数平衡了能耗、网络生存期和无线带宽等参数。在理论上分析该算法的软、硬时延保障及其他QoS性能,结果表明,该算法能为WMSNs的多媒体通信提供较多的QoS控制保障。Based on Baidu system,the accurate localization/position technology is discussed about how to use it to design a geography position routing algorithm.By using greedy policy and geography position information,a new QoS-supported routing algorithm is designed for Wireless Multimedia Sensor Networks（WMSNs）.As the main novel point,the algorithm guarantees an end-to-end delay upper bound for real-time communication inspired from SPEED firstly.Then a cost function is introduced to provide QoS support and balance the energy,lifetime,and the bandwidth performance.The soft/hard delay and others QoS parameters of the algorithm are analyzed in theory,and results show that the algorithm can provide more QoS supports for multimedia communication in WMSNs.

关 键 词：无线多媒体传感器网络 地理位置 北斗系统 路由算法 QOS保障 性能分析 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]