在察觉到的合作光谱,更多的第二等的用户为检测空缺的系列做更多的机会,它结果光谱利用改善了,然而,许多带宽将为送本地观察结果被占据,导致减少的第二等的产量。在这份报纸,在当保证足够的保护到主要用户时,最大化的第二等的产量能总是被完成的地方,为选择察觉阀值的一个适应算法被建议,不管察觉到在认知收音机网络的用户的数字。理论分析和模拟结果验证建议计划。
In cooperative spectrum sensing, more secondary user makes more opportunity for detecting the vacant spectrums, which resulting the spectrum utilization improved, however much bandwidth would be occupied for sending the local observation results, inducing the reduced secondary throughput. In this paper, an adaptive algorithm for selecting detection threshold was proposed, where the maximized secondary throughput can always be achieved while assuring sufficient protection to primary user, regardless of the number of sensing users in cognitive radio networks. Theoretical analysis and simulation results validate the proposed scheme.