| 基于天线阵列的联合功率控制技术 |
| |
| 引用本文： | 杨鑫,段吉海,朱晓.基于天线阵列的联合功率控制技术[J].火力与指挥控制,2009,34(8). |
| |
| 作者姓名： | 杨鑫 段吉海 朱晓 |
| |
| 作者单位： | 桂林电子科技大学信息与通信学院,广西,桂林,541004 |
| |
| 基金项目： | 广西科学基金资助项目 |
| |
| 摘 要： | 功率控制和多用户检测是CDMA移动通信系统中克服远近效应、抑制多址干扰(MAI)的两项关键技术.通过分析PLC-LSCMA多用户检测算法,提出了一种基于天线阵列的联合多用户检测的CDMA功率控制算法.在此算法中,对接收机滤波器抽头系数进行迭代更新的同时,也对功率向量进行迭代更新.仿真结果表明,在发射总功率和信噪比(SNR)一定时,用户可获得更高的信干比, 同时用户的发射功率比传统算法明显降低, 提高了系统容量.
|
| 关 键 词： | 功率控制 多用户检测 天线阵列 |
Joint Power Control and Multi-user Detection based on Antenna Array |
| |
| YANG Xin,DUAN Ji-hai,ZHU Xiao.Joint Power Control and Multi-user Detection based on Antenna Array[J].Fire Control & Command Control,2009,34(8). |
| |
| Authors: | YANG Xin DUAN Ji-hai ZHU Xiao |
| |
| Institution: | Information & Communication College;Guilin University of Electronic Technology;Guilin 541004;China |
| |
| Abstract: | Power control and multi-user detection are two ways to cope with multiple access interference(MAI) and near-far effect.A joint power control and multi-user detection algorithm is proposed using antenna array in CDMA system by analyzing PLC-LSCMA multi-user detection algorithm in this paper.In this algorithm,both the power vectors and filter coefficients are renovated iteratively.The simulation results show that when the total transmission power and SNR are definite,users can obtain a higher SIR,at the same ... |
| |
| Keywords: | CDMA PLC-LSCMA |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
