| 相关信道下基于V-BLAST的多码CDMA容量研究 |
| |
| 引用本文： | 程型清,刘海涛,徐绍君,李道本. 相关信道下基于V-BLAST的多码CDMA容量研究[J]. 北京邮电大学学报, 2005, 28(3): 82-85 |
| |
| 作者姓名： | 程型清 刘海涛 徐绍君 李道本 |
| |
| 作者单位： | 北京邮电大学,信息工程学院,北京,100876;北京邮电大学,信息工程学院,北京,100876;中国民用航空学院,通信工程系,天津,300300 |
| |
| 摘 要： | 垂直分层空时结构(VBLAST)与多码码分多址（CDMA）结合可显著提高通信系统的传输速率，而基于零相关窗互补码(LS码)的码分多址系统具有良好特性. 将三者结合研究了相关频率选择性信道下基于VBLAST多码CDMA的系统容量，并推导出容量计算公式. 仿真结果表明，基于零相关窗码的VBLAST的多码CDMA系统容量远高于基于正交码的V BLAST的多码CDMA系统容量.
|
| 关 键 词： | 相关信道 垂直分层空时结构 多码码分多址 容量 |
| 文章编号： | 1007-5321(2005)03-0082-04 |
| 修稿时间： | 2004-03-01 |
Capacity Analysis of Multi-Code CDMA with V-BLAST Architecture Under Correlated Channels |
| |
| CHENG Xing-qing,LIU Hai-tao,XU Shao-jun,LI Dao-ben. Capacity Analysis of Multi-Code CDMA with V-BLAST Architecture Under Correlated Channels[J]. Journal of Beijing University of Posts and Telecommunications, 2005, 28(3): 82-85 |
| |
| Authors: | CHENG Xing-qing LIU Hai-tao XU Shao-jun LI Dao-ben |
| |
| Affiliation: | 1. School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. Department of Communications Engineering, Civil Aviation University of China, Tianjin 300300, China |
| |
| Abstract: | Combining vertical bell laboratories layered space-time(V-BLAST) and multi-code code division multiple access(CDMA) is an effective way to improve data speed, a good communication character can be obtained based on spreading codes with zero-correlation-window. The capacity formulas are proposed based on the study of the capacity of V-BLAST-CDMA system under loose synchronization (LS) code and Walsh code respectively under frequency-selective and correlative channels. It shows that the capacity of V-BLAST-CDMA based on LS code is higher than that based on Walsh code. |
| |
| Keywords: | correlated channels vertical bell laboratories layered space-time multi-code code division multiple access capacity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 |
|
点击此处可从《北京邮电大学学报》下载全文 |
|
