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首页> 外文期刊>IEEE Communications Magazine >COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Dynamic Spectrum Access in the Time Domain: Modeling and Exploiting White Space
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COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Dynamic Spectrum Access in the Time Domain: Modeling and Exploiting White Space

机译:动态频谱访问的认知无线电-时域中的动态频谱访问:建模和开发空白

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摘要

Dynamic spectrum access is a promising approach to alleviate the spectrum scarcity that wireless communications face today. In short, it aims at reusing sparsely occupied frequency bands while causing no (or insignificant) interference to the actual licensees. This article focuses on applying this concept in the time domain by exploiting idle periods between bursty transmissions of multi-access communication channels and addresses WLAN as an example of practical importance. A statistical model based on empirical data is presented, and it is shown how to use this model for deriving access strategies. The coexistence of Bluetooth and WLAN is considered as a concrete example
机译:动态频谱访问是一种缓解当今无线通信面临的频谱稀缺的有前途的方法。简而言之,其目的是在不对实际被许可方造成(或不重要)干扰的情况下,重用稀疏占用的频带。本文通过利用多址通信信道的突发传输之间的空闲时间段来解决这一问题,并将其重点放在时域中,并将WLAN作为具有实际重要性的示例。提出了一个基于经验数据的统计模型,并说明了如何使用该模型推导访问策略。蓝牙和WLAN的共存被视为一个具体示例

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