基于区分服务的无线多媒体传感器网络QoS 路由协议.doc

基于区分服务的无线多媒体传感器网络QoS路由协议
衷柳生,程良伦
(广东工业大学自动化学院,广州,510006)
摘要:针对无线多媒体传感器网络数据量大且不同业务传输的QoS约束不同的特点,本文提出了一种数据融合的区分服务的QoS路由算法(DF-DSQR)。该算法在兴趣泛洪期间建立实时(RT)业务和尽力而为(BE)业务两类梯度,采用优先级排队模型对两类业务的传输进行分级处理,并采用数据融合转发机制,为RT业务和BE业务提供了保证QoS的路由路径。仿真结果表明,该算法即能保证实时业务低时延的要求,又能保证尽力而为业务的QoS要求,均衡了网络能耗,延长了网络生存期。
关键词:无线多媒体传感器网络;路由协议;区分服务;QoS;数据融合
中图分类号: 文献标识码:A
A QoS Routing Protocol for Wireless Multimedia works Based Differentiated Services
ZHONG Liu-sheng, CHENG Liang-lun
(Faculty of Automation, Guangdong University of Technology, Guangzhou 510006)
Abstract: Aiming at large data transmission volume and different QoS requirements for various traffic transmission levels in wireless multimedia works, a data fusion of differentiated services QoS routing algorithm (DF-DSQR) has been introduced. In this algorithm, establish two gradient for real time business and best-effort business during the interest flooding, use the priority queue model when transmits the two businesses and data fusion forwarding mechanisms, provide the QoS path for BE business and RT business. The Simulation results show that the routing can guarantee low latency requirements of real-time business, ensure QoS requirements for the best-effort business, balance the energy consumption and prolong work lifetime.
Keywords: wireless multimedia works; routing; differentiated services; QoS; data fusion
0 引言
无线多媒体传感器网络(WMSNs