计算机科学 ›› 2015, Vol. 42 ›› Issue (6): 115-119.doi: 10.11896/j.issn.1002-137X.2015.06.026
张航,佟晓筠,王 翥
ZHANG Hang, TONG Xiao-jun and WANG Zhu
摘要： 针对目前WSN中的中继节点布局算法中忽略负载均衡的问题,首先引入通信路径不可逆等优化模型来进行节点布局；其次,提出阈值法及平均值法来动态更新网络中各路径的负载；然后针对负载均衡与节点数目难两全的问题,提出一种优化贪婪寻优算法,使得在考虑负载的同时,所需节点的数目能尽量减少。测试结果表明,使用不考虑负载的传统贪婪寻优算法以及使用考虑负载均衡的优化贪婪寻优算法进行节点布局时,两种算法所耗费的节点数目相差无几,然而后者却能够使整个网络的负载更为平均,更适合于实际应用中灵活多变、环境复杂的无线传感器网络,具有更深的实际意义。
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