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

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.

Key words: Wireless Multimedia Sensor Networks(WMSNs), geography location, Baidu system, routing algorithm, QoS-supported, performance analysis

中图分类号: 

• TP393.02