To address the phenomenon of temporary communication blindness resulted from fixed period beacon exchange in mobile wireless sensor networks, an adaptive beacon exchange algorithm is proposed.
针对移动无线传感器网络中周期性信标交换引起的通信暂盲现象，提出一种自适应信标交换算法。
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Beacon towers were also built at fixed intervals for passing on military information. All these indicate the important role of the Great Wall in military defense.