This paper gives an overview of topologies, medium access control protocols and current status for metropolitan area networks.

本文对城域网的拓扑结构、介质访问控制协议及国际上城域网研究动态进行了综述。

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As sensor nodes are energy limited, saving energy is the primary issue in designing Medium Access Control (MAC) protocols in sensor networks.

传感器节点能量受限，节能是传感器网络中媒体访问控制(MAC)协议设计的首要问题。

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Medium access control (MAC) protocol is an important component of the wireless data communication protocols.

信道接入协议(MAC)是无线数据通信协议的重要组成部分。

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