基于H_∞滤波能量预测中继选择协作传输技术

Research of cooperative transmission technology based on H_∞ filter energy prediction

研究了一种适用于分布式移动无线传感器网络数据传输基于能量预测的协作通信技术。针对无线传感器网络,协作数据传输技术难以有效解决无线网络动态拓扑结构、带宽和能量受限等问题,建立了一种基于H∞滤波器相邻节点剩余能量预测的分布式中继选择机制,并在此基础上建立数据协作传输技术。该技术充分利用无线信道的广播特性,首先根据H∞滤波器预测节点剩余能量,然后根据剩余能量值选择最大者作为协作节点,最后根据无线信道质量在放大重传和解码重传机制之间进行自适应调整。数学分析表明,H∞滤波器可以准确地预测节点的剩余能量,同时该协作传输技术能够显著提高无线传感器网络的资源利用率和系统吞吐率,有效延长网络寿命。

This paper researched a mobile cooperative data transmission technology based on energy prediction for distributed wireless sensor network.Wireless sensor network,collaborative data transmission technology was difficult to effectively solve the wireless network dynamic topology,limited bandwidth and energy problem,which was based on H∞ filter adjacent node residual energy prediction for distributed relay selection scheme based on data collaboration transmission technology.The technology made full use of the broadcast characteristic of wireless channel,first established according to the H∞ filter for prediction of residual energy of nodes,and then chose the biggest as cooperative node according to the remaining energy value,according to the wireless channel quality,it adaptively adjustment between AF and DF mechanism.Mathematical analysis shows that the H∞ filter can accurately predict the residual energy of nodes,at the same time the cooperative transmission technology can significantly improve the wireless sensor network resource utilization and throughput rate of the system,prolong the network lifetime efficiently.