上海大学学报(自然科学版)

• 通信与信息工程 • 上一篇    

MIMO CDMA系统中的空时映射技术

武卓,陈惠民   

  1. 上海大学 通信与信息工程学院, 上海 200072
  • 收稿日期:2007-01-15 修回日期:1900-01-01 出版日期:2007-08-20 发布日期:2007-08-20
  • 通讯作者: 武卓

A Space-Time Mapping Technique in a MIMO CDMA System

WU Zhuo, CHEN Hui-min   

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
  • Received:2007-01-15 Revised:1900-01-01 Online:2007-08-20 Published:2007-08-20
  • Contact: WU Zhuo

摘要: 提出一种基于多天线(MIMO)技术的空时信号处理技术,即空时映射(spacetime mapping,STM)技术.从减少多天线间相关性的角度出发,设计了适用于不同MIMO CDMA系统结构的符号级及码片(chip)级的空时映射技术.仿真结果证明空时映射技术能够明显提高MIMO CDMA系统的误码率(BER)性能.

关键词: MIMO, 空时映射, 扩频

Abstract: A MIMO-based spacetime signal processing technique, spacetime mapping (STM), is proposed in this paper. The space-time mapping technique, proposed from the viewpoint of reducing correlations in adjacent antennas, can either be on the symbol-level or on the chip-level. Simulation results show that the proposed technique can significantly improve the bit-errorrate (BER) performance of a MIMO CDMA system.

Key words: space-time mapping, spreading
,
MIMO

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