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Channel estimation relying on the minimum bit-error-ratio criterion for BPSK and QPSK signals

Dutta, Amit Kumar and Hari, KVS and Hanzo, Lajos (2014) Channel estimation relying on the minimum bit-error-ratio criterion for BPSK and QPSK signals. In: IET COMMUNICATIONS, 8 (1). pp. 69-76.

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Official URL: http://dx.doi.org/10.1049/iet-com.2013.0173

Abstract

The authors consider the channel estimation problem in the context of a linear equaliser designed for a frequency selective channel, which relies on the minimum bit-error-ratio (MBER) optimisation framework. Previous literature has shown that the MBER-based signal detection may outperform its minimum-mean-square-error (MMSE) counterpart in the bit-error-ratio performance sense. In this study, they develop a framework for channel estimation by first discretising the parameter space and then posing it as a detection problem. Explicitly, the MBER cost function (CF) is derived and its performance studied, when transmitting binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) signals. It is demonstrated that the MBER based CF aided scheme is capable of outperforming existing MMSE, least square-based solutions.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the INST ENGINEERING TECHNOLOGY-IET, MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Depositing User: Id for Latest eprints
Date Deposited: 03 Apr 2014 11:18
Last Modified: 03 Apr 2014 11:22
URI: http://eprints.iisc.ac.in/id/eprint/48764

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