This utility shows the wireless link quality, link level, and noise.
这个工具会显示无线链路质量、链路级别以及噪声。
The method can both give a fast and accurate response to the changeable wireless communication conditions and ensure the transmission quality of the link.
该方法既可对多变的无线通信环境做出快速准确的反应，又可以保证链路通信质量。
But the link quality of WSN is unstable and the network easily has nodes failures, so the data loss is an open problem in wireless sensor network.
由于低功耗无线通信不确定性、链路质量不稳定性以及节点失效等问题，传感器网络很容易导致路由数据包丢失。
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