无线传感器网络中基于能量感知的QoS路由协议

Energy awareness based QoS routing protocol in wireless sensor network

针对无线传感器网络对服务质量和网络生存时间要求的特点,提出一个基于能量感知的具有强化学习功能的Qo S路由协议EARP(Energy Aware Routing Protocol)。节点利用反馈的代价信息获取网络状态提供服务质量保证,同时利用轮盘路由策略来进行负载均衡。该协议在保证必要Qo S的基础上提高网络的性能。仿真结果表明,相比于Qo S-AODV和RL-QRP协议,EARP协议在保证服务质量的同时,显著缩短了端到端时延,提高了数据传输成功率,并有效延长网络生存时间。

According to the characteristic of QoS and network lifetime requirement in WSN, one QoS routing protocol with reinforcement learning named EARP （Energy Awareness Routing Protocol ） based on energy awareness is proposed. In EARP, nodes perceive network state to provide the requirement of QoS by using the feedback information and balance the network load with the strategy of roulette wheel routing. The protocol improves the performance of the network while provides QoS needed. Simulation results show that compared with the protocols of QoS-AODV and RL-QRP, EARP can provide QoS needed while improving the packets delivery ratio and end-to-end delay greatly, extending the lifetime of network effectively.