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The performance of turbo codes for wireless communication systems

The performance of turbo codes for wireless communication systems

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: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:
Last Modified: 14 Oct 2016 09:19
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/7518

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