Optimal periodic training signal for frequency offset estimation in frequency selective fading channels

TitleOptimal periodic training signal for frequency offset estimation in frequency selective fading channels
Publication TypeConference Paper
Year of Publication2004
AuthorsMinn, H., S. Xing, and V. K. Bhargava
Conference NameCommunications, 2004 IEEE International Conference on
Pagination488 - 492 Vol.1
Date Publishedjun.
Keywordsblock length, channel estimation, Cramer-Rao bound criterion, frequency estimation, frequency offset estimation, frequency selective multipath Rayleigh fading channel, multipath channels, optimal periodic training signal design, Rayleigh channels, signal sampling, synchronisation
Abstract

This paper addresses optimal periodic training signal design for frequency offset estimation in frequency selective multipath Rayleigh fading channels. For a fixed transmitted training signal energy and within a fixed length block, the optimal periodic training signal structure (the optimal location of identical training subblocks) and the optimal training subblock signal are presented. The optimality is based on the minimum Cramer-Rao bound (CRB) criterion. Based on the snap-shot CRB, the optimal periodic training structure is derived. The optimal training subblock signal is obtained by utilizing the average CRB and the received training signal statistics. The optimal training structure with optimal training signals achieves substantial performance improvement over nonoptimal training structure with nonoptimal training signals.

URLhttp://dx.doi.org/10.1109/ICC.2004.1312537
DOI10.1109/ICC.2004.1312537

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