Abstract
In this paper, concatenated space-time codes applying iterative decoding topologies are investigated in wideband code division multiple access (WCDMA) communication systems. The coding operations are based on the concatenation of a convolutional encoder, an interleaver, and a space-time code employing multiple-transmitter/multiple-receiver diversity. As the decoding algorithm, an iterative (turbo) process is used, where a priori probability is exchanged between the symbol-by-symbol space-time decoder and the bit-by-bit convolutional decoder. Through the iterative decoding process and the optimum parameter selection operations a considerable improvement in the error rate performance is obtained. The simulation results for the multi-user forward link WCDMA system show that in a flat Rayleigh fading channel environment the serially concatenated interleaved space-time coding systems perform significant levels of error correction, and additionally, for the applied system configurations, it was observed that the non-recursive space-time code outperforms the recursive space-time code.
| Original language | English |
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| Pages | 911-916 |
| Number of pages | 6 |
| Publication status | Published - 2002 |
| Event | 2002 MILCOM Proceedings; Global Information GRID - Enabling Transformation Through 21st Century Communications - Anaheim, CA, United States Duration: 2002 Oct 7 → 2002 Oct 10 |
Other
| Other | 2002 MILCOM Proceedings; Global Information GRID - Enabling Transformation Through 21st Century Communications |
|---|---|
| Country/Territory | United States |
| City | Anaheim, CA |
| Period | 02/10/7 → 02/10/10 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering