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,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)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,该算法既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。
Aiming at large data transmission volume and different QoS requirements for various traffic transmission levels in wireless multimedia sensor networks,introduced a data fusion of differentiated services QoS routing algorithm （DF-DSQR）.In this algorithm,established two gradient for real-time business and best-effort business during the interest flooding,used the priority queue model when transmited the two businesses and data fusion forwarding mechanisms,provided 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 the network lifetime.
出处
《计算机应用研究》
CSCD
北大核心
2010年第11期4218-4221,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(60673132)
广东省自然科学基金资助项目(07117421
8351009001000002)
广东省重大科技专项(2009A080207008)
