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An Improved Detection Technique for Cyclic-Prefixed OFDM

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Author(s): Giovanni Garbo | Stefano Mangione

Journal: Journal of Networks
ISSN 1796-2056

Volume: 5;
Issue: 7;
Start page: 759;
Date: 2010;
Original page

Keywords: Orthogonal Frequency Division Multiplexing | Frequency-selective channels | Maximum-Likelihood Detection | Linear Detection | Interference Cancellation

ABSTRACT
A novel Orthogonal Frequency Division Multiplexing detection technique compatible to standard (e.g. Wireless LAN) transmitters is proposed. It features enhanced error-rate performance with flexible computational complexity and robustness to imperfect channel estimation. It is based on exploitation of the redundancy available in the cyclic prefix after cancellation of interference from the preceding block. In order to show the effectiveness of our proposal, an analysis of computational complexity and a number of comparisons to the standard per-subcarrier receiver and a previously existing method in terms of error rates are reported.
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