在本文中，我们主要探讨影响网络覆盖的各种因素，对各种无线网络参数进行调整，以达到最佳的覆盖效果。

In the article, we mainly probe into various kinds of factors influencing the network coverage and adjust various kinds of wireless network parameter, in odder to reach the best cover results.

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感知无线电可以自动感知外界的无线环境并能调整系统参数以适应环境的变化。

Cognitive radio has both the ability to sense the spectral environment and the flexibility to adapt transmission parameters.

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认知无线电技术的主要特点，就是根据环境不断调整参数以适应通讯的需求从而提高通讯质量。

The main task of CR is adjusting parameters according to the environment to adapt to the demands of communications and improve its quality.

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