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# Comparative Study of Turbo Equalization Schemes using Convolutional, Convolutional Turbo, and Block-Turbo Codes

Yeap, B.L., Liew, T.H., Hamorsky, J. and Hanzo, L. (2002) Comparative Study of Turbo Equalization Schemes using Convolutional, Convolutional Turbo, and Block-Turbo Codes. IEEE Transactions on Wireless Communications, 1 (2), 266-273.

Record type: Article

## Abstract

Turbo equalizers have been shown to be successful in mitigating the effects of inter-symbol interference introduced by partial response modems and by dispersive channels for code rates of $R \le 1/2$. In this contribution, we comparatively studied the performance of a range of binary phase-shift keying turbo equalizers employing block-turbo codes, namely Bose–Chaudhuri–Hocquenghen turbo codes, convolutional codes, and convolutional turbo codes having high code rates, such as $R = 3/4$ and $R = 5/6$, over a dispersive five-path Gaussian channel and an equally weighted symbol-spaced five-path Rayleigh fading channel. These turbo equalization schemes were combined with an iterative channel estimation scheme in order to characterize a realistic scenario. The simulation results demonstrated that the turbo-equalized system using convolutional turbo codes was the most robust system for all code rates investigated. Index Terms—Bose–Chaudhuri–Hocquenghen codes, convolutional codes, iterative decoding, iterative equalization, joint equalization and decoding, turbo codes, turbo decoding, turbo equalization.

Text
01twc02-bly.pdf - Other

Published date: April 2002
Organisations: Southampton Wireless Group

## Identifiers

Local EPrints ID: 257001
URI: http://eprints.soton.ac.uk/id/eprint/257001
PURE UUID: ee1fbd9c-63a3-49c1-88ed-ed30243bd83a
ORCID for L. Hanzo: orcid.org/0000-0002-2636-5214

## Catalogue record

Date deposited: 16 Dec 2003

## Contributors

Author: B.L. Yeap
Author: T.H. Liew
Author: J. Hamorsky
Author: L. Hanzo