Cognitive radio offers a flexible and efficient utilization of radio frequency resources by dynamic spectrum sharing as required in next gen (5G) architecture of wireless communication. The channel allocation time, probability of false alarm detection and spectral efficiency are the major performance parameters to characterize a spectrum sharing technique. This paper presents modified energy detection based dynamic channel allocation technique based on sensing the power spectral density of idle spectrum bands i.e. spectrum hole. Receiver operating characteristics (ROC) curves have been used to analyze the detector performance of sensing with respect to probability false alarm at different values of SNR. Allocation of unoccupied bands to the SUs has been done by coalition based cooperative game, which provides SUs with an incentive to cooperate. Based on their worth, SUs get payoffs which have been computed using Shapely values as a one-point solution. Vickrey–Clarke–Groves (VCG) auction mechanism has been used to allocate the spectrum resources fairly to each user. On the basis of allocation time, the present model for dynamic spectrum access appears to be more efficient as compared to the conventional opportunistic spectrum access model.

中文翻译：

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改进的基于能量检测的动态频谱共享技术及其在认知无线电网络无线平台上的实时实现

认知无线电通过下一代无线通信（5G）架构中的动态频谱共享，可以灵活高效地利用射频资源。信道分配时间，错误警报检测的可能性和频谱效率是表征频谱共享技术的主要性能参数。本文提出了基于改进的能量检测的动态信道分配技术，该技术基于感知空闲频谱带的功率谱密度，即频谱孔。接收器工作特性（ROC）曲线已用于分析检测器在不同SNR值下针对概率虚警的感测性能。通过基于联盟的合作博弈将空闲频段分配给SU，这为SU提供了合作的动力。根据其价值，SU获得的收益已使用Shapely值作为单点解决方案进行了计算。Vickrey–Clarke–Groves（VCG）拍卖机制已被用来公平地分配频谱资源给每个用户。在分配时间的基础上，与传统的机会频谱访问模型相比，当前的动态频谱访问模型似乎更加有效。