【摘要】 无线粮情监测系统传感器节点的立体晶格结构提供了有效的位置信息,针对LEACH协议簇内单跳能耗不均衡的问题,提出了一种O(n)复杂度的混合路由算法,该算法以网络能耗均值为阈值确定多跳节点,根据网络能耗均值和最低转发能耗选择最佳转发节点。仿真实验表明该混和路由算法降低了能耗方差,延长了网络生存时间,适用于无线粮情监测系统。更多还原

【Abstract】 The sensor nodes of a wireless grain depot surveillance system are deployed in crystal grids,which provide lot of valid position information.To avoid the energy consumption unbalance of the single hop routing adopted by LEACH protocol,a hybrid routing algorithm with O(n)time complexity is proposed.Multi-hop routing is introduced into the distant field nodes which are farther than mean energy consumption distance.Mean energy consumption and minimum transmitting energy consumption are used as thresholds for selecting transmitting nodes to minimize total variance of node’s energy consumption,so that the whole network balances.Simulations show that the hybrid algorithm eliminates hot spots within cluster and prolong the lifetime of WSN.更多还原