基于免疫算法的智能多用户检测技术在CDMA中的应用  

The Application of Immune Algorithm-Based Intelligent Multi-User Detection Techniques in CDMA System

作　　者：牛志强[1] 刘峥嵘[1] 吴新余[1] 

机构地区：[1]南京邮电学院电子工程系,江苏南京210003

出　　处：《江苏通信》2001年第2期6-9,共4页Jiangsu Communication

摘　　要：多用户检测技术是第 3代移动通信系统CDMA中的一项关键技术。在多用户检测器中求解最佳矢量的问题可以转化为在免疫算法中求解具有最高适应度抗体的问题。文中用免疫算法来解决CDMA中的多用户检测问题。通过性能分析和计算机仿真 ,并与最佳多用户检测器和传统检测器相比较 ,发现基于免疫算法的多用户检测技术能较好地实现多用户检测的功能 ,这是一种切实可行的方案。The technique of multi user detection is a key one in the 3rd mobile communication system ─ CDMA It is shown that the problem of minimizing the objective function of the optimal multi user detector can be translated into finding the individual, which has the high fitness in Immune Algorithm (IA) The intelligent multi user detectors based on IA are proposed in this paper The performance analysis and computer simulation are performed on the detectors Comparing with the optimal multi user detector and the conventional detector, we find that the immune algorithm detector can realize multi user detection quite well and it is a feasible method

关 键 词：码分多址 多用户检测 免疫算法 

分 类 号：TN929.5[电子电信—通信与信息系统]