This thesis aims to clearly describe the cognitive radio and its components and operations. Moreover, it aims on describing the expected outcome from the most common techniques that are proposed for use in cognitive radios. In addition, it describes

认知无线电中基于干扰图模型的动态频谱分配。此程序是基于固定干扰图模型的分析代码-Cognitive radio interference graph model based on the dynamic spectrum allocation. This procedure is based on the analysis of the fixed interference graph model code