Rate-1/2 component codes for nonbinary turbo codes

The iterative decoding structure and component maximum a posteriori decoders used for decoding binary concatenated codes can be extended to the nonbinary domain. This paper considers turbo codes over nonbinary rings, specifically ternary, quaternary, penternary, hexernary, and octernary codes. The b...

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Bibliographic Details
Published in:IEEE transactions on communications 2005-09, Vol.53 (9), p.1417-1422
Main Authors: Reid, A.C., Gulliver, T.A., Taylor, D.P.
Format: Article
Language:English
Subjects:
Additive white noise
Applied sciences
AWGN
Coding, codes
Concatenated codes
Convolutional codes
Exact sciences and technology
Information, signal and communications theory
Iterative decoding
Modular construction
Modulation coding
Modulation, demodulation
Nonbinary turbo codes
Phase modulation
Phase shift keying
ring codes
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Turbo codes
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Summary:The iterative decoding structure and component maximum a posteriori decoders used for decoding binary concatenated codes can be extended to the nonbinary domain. This paper considers turbo codes over nonbinary rings, specifically ternary, quaternary, penternary, hexernary, and octernary codes. The best rate-1/2 component codes are determined using a practical search algorithm. The performance of the resulting rate-1/3 turbo codes on an additive white Gaussian noise channel using q-ary phase-shift keying modulation is given.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2005.855019