Abstract
A low-complexity data-derived iterative channel estimator is evaluated in a receive diversity system for two and four receive antennas. The performance is shown almost to match the ideal (perfect channel knowledge) case in a low-Doppler environment. At higher Doppler frequencies, performance is still good, but deviates from the ideal case. A Wiener filter tracking algorithm is proposed that is advantageous at lower E/sub b//N/sub 0/ ranges, however linear tracking is found to be better at higher E/sub b//N/sub 0/ ratios and therefore further improves performance for higher order modulation schemes such as 16-QAM.
| Translated title of the contribution | Performance evaluation of a data-derived iterative channel estimator for a COFDM system with receive diversity |
|---|---|
| Original language | English |
| Pages (from-to) | 1224 - 1228 |
| Number of pages | 4 |
| Journal | IEEE 58th Vehicular Technology Conference, 2003 (VTC 2003-Fall) |
| Volume | 2 |
| Publication status | Published - Oct 2003 |
| Event | 58th Vehicular Technology Conference 2003 (VTC 2003-Fall) - Orlando, United States Duration: 1 Oct 2003 → … |
Bibliographical note
Publisher: Institute of Electrical and Electronics Engineers (IEEE)Name and Venue of Conference: Vehicular Technology Conference 2003 (VTC 2003-Fall)
Rose publication type: Conference contribution
Sponsorship: Alex Dowler would like to acknowledge the financial support of the Engineering and Physical Sciences Research Council and the financial and technical support of Toshiba
Research Europe Limited, Bristol.
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Keywords
- Data derived
- Channel estimation
- COFDM
- Receive diversity
- Maximal Ratio Combining