It is a quite important problem to employ limited frequency band resources effectively today, when the wireless frequency resources is more and more sparse day and day.
在无线频道资源日益紧张的今天，如何有效的利用有限的频段资源是一个比较重要的问题。
Many of the TV frequency bands have been vacated by TV's move to digital, so, in a country hungry for wireless resources, it was proposed that this spectrum get redirected to mobile access use.
当电视信号变为数字信号后，许多电视的频率带宽都被闲置下来。因此，在一个渴望无线资源的国家，这些频带被引向移动接入应用可谓众望所归。
Cooperative communication can achieve effective reuse of frequency, time and space etc. resources in wireless communication system, and greatly enhance anti-fading performance.
协同通信可以实现对无线通信系统的频率、时间和空间等多维资源的有效复用，极大地提高了无线通信系统的抗衰落性能。
Cooperative communication can achieve effective reuse of frequency, time and space etc. resources in wireless communication system, and greatly enhance anti-fading performance.
协同通信可以实现对无线通信系统的频率、时间和空间等多维资源的有效复用，极大地提高了无线通信系统的抗衰落性能。
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