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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Siyau, Ming Fei Ormondroyd, Richard F. Nobles, Philip |
| Copyright Year | 2002 |
| Description | Author affiliation: Cranfield University, United Kingdom (Siyau, Ming Fei; Ormondroyd, Richard F; Nobles, Philip) |
| Abstract | A novel semi-blind estimation scheme is proposed for an uncoded space-time system that uses a multi-element array pilot integration (MEA-PI) algorithm with Hadamard orthogonal structure combined with an auto-tracking algorithm. Central to the new method is a real-time channel estimator that introduces a very low pilot symbol overhead during the training process. The method is also capable of tracking the time variation of the channel using both the training vectors and a decision feedback algorithm during data acquisition process. As a result, a robust method of estimating the channel coefficients is possible, enabling the method to be used in real-time for a time-varying channel with a relatively short coherence time. The bit-error probability performance of this semi-blind method is investigated for different system configurations using non-linear MMSE decoding. It is found that the new method shows very little degradation in performance compared with the case where perfect channel estimates are assumed. |
| File Size | 141964 |
| File Format | |
| ISBN | 0780374029 |
| ISSN | 15206149 |
| DOI | 10.1109/ICASSP.2002.5745655 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2002-05-13 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Channel estimation Equalizers |
| Content Type | Text |
| Resource Type | Article |
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