【摘要】 调度冗余节点轮流工作能够有效延长网络寿命。研究传感器网络节点的随机睡眠调度机制,给出了一种基于能量和节点邻居距离的随机调度机制。传感器节点根据自身的能量大小以及邻居的信息确定睡眠概率,使能量较小,并且工作邻居节点数目大的节点获得较大的睡眠概率。最后分析比较了这种机制与另外两种机制的性能。实验结果表明,基于能量和邻居信息的调度机制能够减少工作节点个数,保证较高的网络覆盖率。更多还原

【Abstract】 Scheduling the nodes to work alternately can prolong the network lifetime efficiently.At first,a stochastic sleeping protocol based on energy and neighbor length was introduced.The sensor node gave a sleep probability related to its own energy and neighbor message,so those nodes with less energy and more working neighbors would get a large sleep probability.Furthermore,analysis and simulation were provided with other two protocols.The results show that the protocol can reduce the number of working nodes and guarantee a high coverage rate.更多还原