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Time reversal time-domain synchronisation orthogonal frequency division multiplexing over multipath fading channels with significant tap delays

Citation

Esmaiel, H and Jiang, D, Time reversal time-domain synchronisation orthogonal frequency division multiplexing over multipath fading channels with significant tap delays, Journal of Engineering, (July) pp. 1-10. ISSN 2051-3305 (2014) [Refereed Article]

DOI: doi:10.1049/joe.2014.0064

Abstract

Time-reversed orthogonal frequency division multiplexing (TR-OFDM) has recently received attention as a promising spectral efficient scheme for single-input multiple-output communications over time-dispersive fading channels. For TR-OFDM, passive time reversal processing is used as a simple means for channel time dispersion reduction. In particular, pseudorandom noise (PN)-sequence padding timedomain synchronisation OFDM (TDS-OFDM) transmission scheme has been reported as an appealing alternative to the traditional cyclic prefix (CP) OFDM technology as it can provide significant improvement in the spectrum efficiency. In this study, a new correlation based coder for inter-block and inter-symbol interference removing in time-reversed TDS-OFDM, which is denoted TR-TDS-OFDM briefly is proposed. Such a coder is, then, tested for multipath channels with significant tap delays. A Zadoff–Chu sequence with perfect autocorrelation property is adopted as a training sequence (TS) for a TDS-OFDM system. Simulation results show that, by using TR-TDS-OFDM with correlation- based coder, a TS with length shorter than channel order can be used without introducing notable inter-block interference. The other merits of the proposed design are also supported by both theoretical analysis and numerical simulations.

Item Details

Item Type:Refereed Article
Keywords:time reversal synchronization, OFDM, underwater communication, PN padding
Research Division:Engineering
Research Group:Electrical and Electronic Engineering
Research Field:Signal Processing
Objective Division:Information and Communication Services
Objective Group:Communication Networks and Services
Objective Field:Mobile Data Networks and Services
Author:Esmaiel, H (Mr Hamada Esmaiel)
Author:Jiang, D (Dr Danchi Jiang)
ID Code:93241
Year Published:2014
Deposited By:Engineering
Deposited On:2014-07-22
Last Modified:2015-03-20
Downloads:0

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