基于拓扑控制的异类无线传感器网络分簇算法研究

随着传感器网络的发展，如何减小传感器网络的能量消耗、延长使用寿命已经成为传感器网络结构设计的一个重要问题。研究表明采用分簇结构以及对网络进行适当的拓扑控制可以提高能量利用效率。该文将簇构造方法与拓扑控制结合起来，针对网络具有不同节点，即每个节点具有不同的最大能量传输范围的情况，提出了一种针对异类无线传感器网络，利用局部拓扑控制算法进行优化的分簇算法。实验结果表明了运用该算法的有效性。

One of the most critical issues in designing wireless sensor networks is to minimize the energy consumption for longevity. Most of topology control algorithms assume homogeneous wireless nodes with uniform maximum transmission ranges, and can not directly applied to heterogeneous wireless multi-hop networks in which the maximum transmission range of each node may be different. In this paper, we present a localized clustering algorithm for heterogeneous networks. In this algorithm, each node in the same cluster selects a set of neighbors based on the locally collected information. Simulation results show that this algorithm can reduces the average degree of cluster-head and the average translate power.