(1. School of Electronic Information, Wuhan Univ, Wuhan，Hubei430079,China;2. China Ship Development and Design Center, Wuhan, Hubei430064,China) 在知网中查找 在百度中查找 在本站中查找
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摘要:
针对无线传感器网络应用中存在大量不可靠通信链路，很难实现能效优化与QoS保障，提出一种能量平衡与QoS保障的机会路由协议EQGOR，并结合机会转发特征建立了传输效率、转发时延、转发能效与节点剩余能量模型提出了一种基于多目标粒子群的自适应转发集优化算法，该算法兼顾能量与QoS需求，能实现QoS保障并最大化网络生存时间.仿真实验表明，相比机会路由GOR与传统的QoS多路径路由QuESt，本文提出的EQGOR(Energy balanced and QoS guaranteed Geographic Opportunistic Routing)具有更优的QoS与能量效率.
Because there are a large number of unreliable communication links in wireless sensor network applications, it is difficult to achieve energy efficiency and QoS guarantee.So an energy balanced and QoS guaranteed geographic opportunistic routing protocol (EQGOR) was proposed to solve this problem. Based on opportunistic transmit mechanism, we established the models of forwarding efficiency, forwarding delay, energy efficiency and residual energy, and then proposed an adaptive forwarding set optimization algorithm based on multi-objective particle swarm optimization algorithm, which takes into account both energy and QoS requirement to meet QoS requirement and extend network lifetime. The simulation results have shown that this routing performs better than the opportunistic routing GOR and the traditional multi-path QoS routing QuESt in QoS and energy efficiency.
