基于免疫克隆算法的认知无线电多信道联合感知方法  

Immune Clone Algorithm Based Multiband Joint Detection Method for Cognitive Radio

作　　者：夏巧桥[1] 田茂[1] 汪鼎文[2] 陈曦[2] 

机构地区：[1]武汉大学电子信息学院,武汉430072 [2]武汉大学微电子与信息技术研究院,武汉430072

出　　处：《电子与信息学报》2014年第1期55-60,共6页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(61072135)资助课题

摘　　要：该文研究了认知无线电多信道联合感知的数学模型,并将此模型转换为以认知系统总吞吐率最大化为目标的带约束优化问题,进而提出一种基于免疫克隆的多信道联合感知算法。仿真实验表明所提算法在收敛速度以及稳定性上均明显优于已有的基于遗传算法的感知方法,并且所提算法在对主用户造成相同的干扰条件下能提供更高的系统总吞吐率。This paper studies the mathematical model of Multiband Joint Detection （MJD）. The MJD problem can be formulated as a constrained optimization problem with the goal of maximizing the aggregated opportunistic throughput of a cognitive radio system under some constraints on the interference to the Primary User （PU）. An Immune Clone Algorithm （ICA） is proposed to solve this problem. The performance of the proposed method is anMyzed and compared with the Genetic Algorithm （GA） based technique through computer simulations. Experiment results show that the proposed method offers higher aggregated opportunistic throughput rates under the same interference to PU than GA, and the results demonstrate the stability and effectiveness of the method.

关 键 词：认知无线电 频谱感知 免疫克隆算法 遗传算法 多信道联合感知 

分 类 号：TN92[电子电信—通信与信息系统]