Wireless sensor network (WSN) is a resource constrained network system. Many kinds of scheduling approaches have been proposed to improve the performances of WSN. In this paper, the design principles and classification methods for distributed scheduling approaches of WSN are summarized. And the scheduling approaches are discussed and classified with respect to scheduling object. The fundamental mechanisms of some typical approaches are discussed further and the characteristics of each class are analyzed in detail. Comparison between the designed objects and the performance features of these scheduling approaches are presented. Finally, the current research situations for distributed scheduling approaches of WSN are summarized and the key aspects for further research are also suggested.%无线传感器网络(Wireless sensor network,WSN)是一个资源受限的网络系统.已提出了多种调度方法来提高网绍性能.本文归纳了WSN分布式调度方法的设计原则和分类方法,并按调度对象对调度方法进行了分类讨论.详细论述了一些典型调度方法的内在机理,分析了每一类调度方法的特点.对这些调度方法的设计目标和性能特点进行了对比.最后总结了WSN分布式调度方法的研究现状,提出了该领域今后发展需要关注的重要因素.
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