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Cognitive radio-based solutions for spectrum scarcity in Palestine

机译:基于认知无线电的巴勒斯坦频谱稀缺解决方案

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摘要

In this paper, we study the feasibility of implementing cognitive radio (CR) secondary network either on the primary Palestinian second generation (2G) global system for mobile communication (GSM) network or on the ultra-high frequency (UHF) television (TV) band. Particularly, we propose solutions for spectrum scarcity based on the three CR paradigms, namely: interweave CR, underlay CR, and overlay CR. In the first solution, an interweave CR system is suggested to efficiently utilise the so-called TV white spaces in the UHF TV band allocated for Palestine. In the second solution, an underlay CR system based on code division multiple access (CDMA) is introduced to underlay the primary GSM system. In the third solution, an overlay CR system is proposed based on orthogonal frequency division multiplexing (OFDM) to share the same spectrum band with the primary GSM system. It is confirmed that the proposed solutions can solve the spectrum scarcity and limit the interference levels, and consequently improve system capacity.
机译:在本文中,我们研究了在主要的巴勒斯坦第二代(2G)全球移动通信(GSM)网络系统或超高频(UHF)电视(TV)上实施认知无线电(CR)辅助网络的可行性带。特别是,我们提出了基于三种CR范式的频谱稀缺解决方案:交织CR,底层CR和覆盖CR。在第一个解决方案中,提出了一种交错CR系统,以有效利用分配给巴勒斯坦的UHF电视频段中的所谓电视空白空间。在第二种解决方案中,引入了基于码分多址(CDMA)的底层CR系统,以覆盖主要GSM系统。在第三种解决方案中,提出了一种基于正交频分复用(OFDM)的覆盖CR系统,以与主GSM系统共享相同的频带。可以证明,所提出的解决方案可以解决频谱稀缺和限制干扰水平,从而提高系统容量。

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