Abstract
A method for decoding of space–time trellis coded modulation (STTCM) without a need
to transmit separate training sequences is developed. The novel technique uses only a single initial estimate to acquire and track multiple-input multiple-output (MIMO) channels while performing STTCM detection. The technique is akin to blind trellis search techniques (per-survival processing,
PSP) and adaptive Viterbi. The solution consists of the deployment of a bank of Kalman filters. The bank of Kalman filters is coupled with Viterbi-type decoders, which produce tentative decisions based on Kalman channel predictions. In return the bank of Kalman filters use the tentative decisions to update and track the MIMO channels corresponding to a number of tracked
hypotheses. The proposed technique is applicable to space–time single carrier systems in rapidly fading environments, and also to space–frequency coded MIMO-OFDM
| Translated title of the contribution | Joint blind and semi-blind detection and channel estimation algorithm for space-time trellis coded modulation over fast faded channels |
|---|---|
| Original language | English |
| Pages (from-to) | 419 - 426 |
| Number of pages | 8 |
| Journal | IEE Proceedings - Communications |
| Volume | 150 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 2003 |
Bibliographical note
Publisher: Institution of Electrical Engineers (IEE)Rose publication type: Journal article
Sponsorship: The authors wish to thank Dr. Christophe Andrieu for very insightful comments and suggestions, and Toshiba TREL. Ltd. for sponsoring the work presented in this article
Keywords
- OFDM modulation
- Viterbi decoding
- MIMO systems
- channel estimation