一种基于能量感知的高效QoS路由协议EEQRP

An Energy Aware and Efficient QoS Routing Protocol EEQRP

提出了一种适于无线传感器网络基于能量感知节能高效的QoS路由协议EEQRP,该协议通过将流量分配到可用的多条邻接节点路径上来恢复节点故障和实现负载均衡,通过多路径路由和前向纠错技术来恢复节点故障,在路径发现阶段使用节点剩余能量,可用缓存大小和信噪比来预测下一跳节点。将要传输的信息分割为多个大小相同的子包,并添加纠错码,然后在多条路径上同时传输;通过队列模型来有效地提供实时和非实时通信的差异性服务,从而在多个传感器节点上有效地均衡能量消耗。利用NS2对协议EEQRP与传统协议MCMP进行了仿真实验研究。结果表明,与传统协议MCMP相比,EEQRP协议实现了较低的平均延迟、更少的能量消耗和更高的包投递率。

This paper presented an energy aware and efficient QoS routing protocol EEQRP for wireless sensor network（WSN）.The traffic was allocated to multiple paths to restore the fault nodes and balance load.The restoration of the fault nodes was implemented by the forward error correction（FEC） and multiple paths model.In the path discovery phase,EEQRP used nodes residual energy,node available cache size and SNR to predict the next hop node.Information was divided into a plurality of packets with the FEC code and was transmitted through multiple paths.Based on differentiated services,EEQRP used the queue model to deal with real-time and non real-time communication,which can balanced the energy consumption.Through simulation based on NS2,this paper had evaluated and studied the performance of EEQRP routing protocol under different network conditions and compared it with the classic MCMP protocol.Simulation results show that EEQRP protocol has a low average delay,saving more energy,with a higher packet delivery ratio than MCMP protocol.