无线多媒体传感器网络QoS区分服务路由机制  

QoS Differentiated Service Routing for Wireless Multimedia Sensor Networks

作　　者：李方敏[1,2] 方艺霖[1,2] 李姮 刘新华[1,2] 

机构地区：[1]宽带无线通信与传感器网络湖北省重点实验室,湖北武汉430070 [2]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《电子学报》2010年第10期2322-2328,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60970019,No.60773212);湖北省自然科学基金重点项目(No.2009CDA132)

摘　　要：无线多媒体传感器网络中多种类型数据并存,服务质量需求各异,因此如何提供服务质量保障机制是无线多媒体传感器网络研究领域的重点问题.本文提出了一种基于角度的区分服务路由算法,在该算法中,网络节点将各自的邻居节点按其偏转角度进行分类,为不同需求的数据流选择不同的转发区域,并结合邻居节点的地理位置、单跳通信负载、剩余能量等信息完成各数据流的区分路由.仿真结果表明,该算法在多媒体数据流传输的延迟、抖动、丢包率以及能耗等性能上均要优于已有算法.There are many types of data co-existing in wireless multimedia sensor networks,which have different quality of service requirements.So quality of service is an important issue of wireless multimedia sensor networks.This paper proposes an angle-based differentiated services routing algorithm.Nodes in this new algorithm select appropriate transmitting region which is classified by its deviate angel for different types of date streams,and choose the appropriate route based on local neighbor information such as neighboring node position,single-hop communication cost and residual energy.The simulation results showed that the proposed algorithm outperforms some well-known routing algorithms in terms of multimedia data stream delay,jitter,packet loss rate and power consumption.

关 键 词：无线多媒体传感器网络 服务质量 区分服务 路由 

分 类 号：TN92[电子电信—通信与信息系统]