Wireless sensor network is a multi-hop wireless network which is made up of a lot of distributed smart sensor nodes.

无线传感器网络是由大量智能传感器节点组成的多跳无线网络。

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A key challenge in wireless sensor networks is to achieve maximal network lifetime with dynamic power management on sensor nodes.

在无线传感器网络中，如何动态地管理能量，最大限度地延长网络的生命周期是一个关键的问题。

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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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This is done using tens of thousands of sensor nodes connected together over, say, a 100-square-kilometer area.

FORBES: Wireless

Each node contained a small processor, a sensor and a low-powered radio with just enough power to talk to adjacent nodes and the network was just smart enough to reconfigure itself to reroute data whenever one node got damaged.

FORBES: How Sensor Networks Add to Context