Abstract
An iterative receiver is proposed for the downlink of CDMA communication systems that employ both a convolutional channel code and a space-time trellis code to achieve transmit diversity in the presence of channel fading. The proposed iterative receiver operates by exchanging extrinsic information between the channel and space-time decoders in each iteration. Comparison of performance results, obtained via simulations, with a similar system using Alamouti space-time codes (space-time block codes) shows that the proposed turbo decoder outperforms a concatenated system consisting of channel and Alamouti codes and that the performance gap increases with fast fading.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2013-2017 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 4 |
| DOIs | |
| State | Published - 2002 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Keywords
- CDMA communications
- Iterative detection
- Space-time coding
- Turbo decoding
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