求翻译：随着无线通信需求的不断增加，对信号传输速率以及可靠性的要求也越来越高，影响系统可靠性的一个很重要的因素就是信道衰落。协作通信提供的协作分集作为一种空间分集可以很好的抗信道衰落。是什么意思？

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As wireless communication needs grow, the signal transfer rates, as well as reliability requirements of a growing impact on system reliability is a very important factor is that the channel to decline. Collaborative Communications offer collaboration is set as a space can be very good anti-Channel d

Along with the wireless correspondence demand unceasing increase, as well as the reliable request also more and more is high to the signaling speed, affects a system reliable very important factor is the channel decline.The cooperation correspondence provides the cooperation diversity takes one kind

With the increasing demand for wireless communications, signal transmission speed and reliability requirements have become more sophisticated, a very important factor affecting system reliability is fading. Collaboration collaborative communication provided as a space diversity, diversity can be a v

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