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摘要： 针对传感器节点能量及传输半径有限的特点，提出一种基于LEACH的聚类分层树路由算法CHT_LEACH。在簇形成阶段，通过候选簇首到最终簇首的择优选择，使网络中任意两个簇首都不在各自的簇半径之内，避免两簇首距离太近，达到簇首分布均匀的目的。在簇间通信阶段，建立以基站(BS)为根的分层树，减少了簇首直接传送数据到BS所需能耗，从而延长了网络的生命周期。
