无线传感器网络因其巨大的应用前景,已成为计算机与通信领域一个活跃的研究分支。随着对无线传感器网络MAC(media access control)层的研究的深入,出现了许多为无线传感器网络设计的具有低能耗特征的MAC协议。对其中的典型协议进行了分析比较,给出了进一步的研究方向。 Because of its huge application prospect, wireless sensor network has become an active research branch in the field of computer and communication. With the further research on the MAC layer of the wireless sensor network, many MAC protocols with low energy consumption have been designed for wireless sensor networks. Some typical protocols are analyzed and compared, and further research directions are given.