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基于北斗系统的QoS保障地理位置路由算法
引用本文:周灵,杨文茵.基于北斗系统的QoS保障地理位置路由算法[J].计算机工程,2012,38(11):73-76.
作者姓名:周灵  杨文茵
作者单位:佛山大学计算机科学与技术系,广东佛山528000;中南大学信息科学与工程学院,长沙410083
基金项目:国家自然科学基金资助项目,广东省自然科学基金资助项目
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。

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
收稿时间:2011-09-28

QoS-supported Geography Position Routing Algorithm Based on Baidu System
ZHOU Ling , YANG Wen-yin.QoS-supported Geography Position Routing Algorithm Based on Baidu System[J].Computer Engineering,2012,38(11):73-76.
Authors:ZHOU Ling  YANG Wen-yin
Affiliation:1,2(1.Department of Computer Science and Technology,Foshan University,Foshan 528000,China;2.School of Information Science and Engineering,Central South University,Changsha 410083,China)
Abstract: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.
Keywords:Wireless Multimedia Sensor Networks(WMSNs)  geography location  Baidu system  routing algorithm  QoS-supported  performance analysis
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