Oletu, G. and Rapajic, P. (2011) The performance of turbo codes for wireless communication systems. In: ICCRD2011 - 2011 3rd International Conference on Computer Research and Development. IEEE Computer Society, Piscataway, USA, pp. 346-349. ISBN 9781612848396 (doi:https://doi.org/10.1109/ICCRD.2011.5763919)

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Abstract

Turbo codes play an important role in making communications systems more efficient and reliable. This paper provides a description of two turbo codes algorithms. Soft-output Viterbi algorithm and logarithmic-maximum a posteriori turbo decoding algorithms are the two candidates for decoding turbo codes. Soft-input soft-output (SISO) turbo decoder based on soft-output Viterbi algorithm (SOVA) and the logarithmic versions of the MAP algorithm, namely, Log-MAP decoding algorithm. The bit error rate (BER) performances of these algorithms are compared. Simulation results are provided for bit error rate performance using constraint lengths of K=3, over AWGN channel, show improvements of 0.4 dB for log-MAP over SOVA at BER 10-4

Item Type:	Conference Proceedings
Title of Proceedings:	ICCRD2011 - 2011 3rd International Conference on Computer Research and Development
Additional Information:	This paper forms part of the published proceedings from 2011 3rd International Conference on Computer Research and Development, ICCRD 2011, March 11-15 2011 held in Shanghai, China
Uncontrolled Keywords:	AWGN channel, bit error rate performance, communications systems, constraint lengths, decoding algorithm, log-map, MAP algorithms, posteriori, simulation result, soft input, soft output, soft output Viterbi algorithms, turbo decoders, turbo decoding algorithm, wireless communication system
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments:	School of Engineering School of Engineering > Department of Computer & Communications Engineering
Related URLs:	Publisher Organisation
Last Modified:	13 Dec 2019 11:37
URI:	http://gala.gre.ac.uk/id/eprint/7518

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