Abstract
We consider a coded multiple-input multiple-output (MIMO) DS-CDMA system using layered space-time transmission in multipath wireless channels, where space-time signals from multiple antennas of multiple users propagate through rich scattering multipath fading. We propose a receiver employing iterative joint detection and decoding with a reduced-complexity detector using linear minimum mean squared error filtering with a priori information and parallel soft-input soft-output (SISO) decoders. Computer simulation results show that the proposed receiver for multi-user MIMO transmission provides high-spectral efficiency and performance approaching to single-user bound. Furthermore, the reduced-complexity receiver outperforms an iterative soft decision-directed maximal ratio combining (DD-MRC) receiver, RAKE receiver as well as a conventional non-iterative receiver.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 207-220 |
| Number of pages | 14 |
| Journal | International Journal of Wireless Information Networks |
| Volume | 13 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jul 2006 |
All Science Journal Classification (ASJC) codes
- Hardware and Architecture
- Computer Networks and Communications
- Electrical and Electronic Engineering