基于协作MIMO的WSNs能耗均衡路由算法

根据无线传感器网络(WSNs)能耗不均衡的特点,基于协作多输入多输出(MIMO)技术,提出了一种能耗均衡的协作路由算法—EBCR算法.算法在保证全网均匀分域的前提下,确保域首均匀分布,其次,根据预设的性噪比门限范围来确定协作节点的可选集,再综合考虑可选节点的剩余能量、信道状态和到达域首节点的距离,选择出域首节点的最优协作节点.实验结果表明:该算法较其他算法在网络生存时间,能量效率,平衡网络能耗方面都有较大改善.

Energy consumption balanced routing algorithm for WSNs based on cooperative MIMO

According to characteristics of uneven energy consumption in wireless sensor networks (WSNs ),an energy consumption balanced routing algorithm based on cooperative MIMO technology is proposed. The algorithm under the premise of ensures the domain head nodes are evenly distributed in WSNs,the whole network is evenly divided into domains. Secondly,according to the preset signal-to-noise ratio threshold range,determine optional collection of cooperative nodes,and consider remained energy,channel information,and the distance from domain head nodes of optional nodes,optimal cooperative nodes of domain head nodes will be selected out. Experimental results indicate that compared with other algorithms,this algorithm has a great improvement in network survival time,energy utilization efficiency,and balancing network energy consumption.