LIU Lin1, YU Hai-bin2. Optimal cluster head deployment in heterogeneous wireless sensor networks[J]. 2010, 31(10): 229-237.DOI:
异构无线传感器网络中簇首的优化部署策略
摘要
分簇对用于环境监测的无线传感器网络具有较好的适应性和节能性
由高能力节点担任簇首可以更好地实现节能并改善网络性能。在大规模网络中
高能力簇首部署问题是一类NP-hard问题。同时考虑了影响网络性能的簇半径和簇首的容量限制
把簇首的优化部署问题形式化为一个整数规划问题。针对该问题
提出了启发式的基于K-平均和模拟退火混合算法的KMSA算法
对簇首节点进行有策略的部署。仿真结果表明
在不同的网络规模和簇个数情况下
KMSA可以改善网络性能。
Abstract
Cluster-based method has better adaptability and energy-efficiency to wireless sensor networks(WSN) used for environmental monitoring.If the cluster head is served by more powerful node
the performance of WSN will be improved greatly.In large scale WSN
high-power cluster head deployment is a kind of NP-hard problem.The optimal problem of cluster head deployment was formulated as an integer programming with the condition of restrictions of cluster head capacity and the maximal cluster radius.To satisfy the time effectiveness
a heuristic algorithm called KMSA was proposed which was a hybrid algorithm of K-mean and simulated annealing.The simulation results show that the KMSA can improve the performance of WSN on varieties of network size and cluster number.