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Erschienen in: Wireless Personal Communications 3/2015

01.12.2015

Time-Domain SI Estimation for SLM Based OFDM Systems Without SI Transmission

verfasst von: Saheed A. Adegbite, Scott G. McMeekin, Brian G. Stewart

Erschienen in: Wireless Personal Communications | Ausgabe 3/2015

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Abstract

Side information (SI) detection is normally needed to achieve successful data reception when selected mapping is implemented for reducing peak-to-average power ratio in orthogonal frequency division multiplexing systems. In severe frequency selective channel fading, existing pilot-assisted SI estimation schemes are ineffective especially when the number of pilots is limited, resulting in performance degradation in the form of increased BER. To address this problem, an alternative pilot-assisted SI estimation method based on a time-domain decision metric is proposed. Simulations show that when compared to a pilot-assisted SI estimation scheme based on frequency domain correlation, the proposed method provides improved SI estimation performance in the form of reduced SI detection error rate.

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Metadaten
Titel
Time-Domain SI Estimation for SLM Based OFDM Systems Without SI Transmission
verfasst von
Saheed A. Adegbite
Scott G. McMeekin
Brian G. Stewart
Publikationsdatum
01.12.2015
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2015
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-015-2834-z

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