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Reduced-complexity syndrome-based TTCM decoding

Reduced-complexity syndrome-based TTCM decoding
Reduced-complexity syndrome-based TTCM decoding
The iterative decoder of Turbo Trellis Coded Modulation (TTCM) exchanges extrinsic information between the constituent TCM decoders, which imposes a high computational complexity at the receiver. Therefore we conceive the syndrome-based block decoding of TTCM, which is capable of reducing the decoding complexity by disabling the decoder, when syndrome becomes zero. Quantitatively, we demonstrate that a decoding complexity reduction of at least 17% is attained at high SNRs, with at least 20% and 45% reduction in the 5th and 6th iterations, respectively.
1220-7798
Babar, Zunaira
23ede793-1796-449d-b5aa-93a297e5677a
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Babar, Zunaira
23ede793-1796-449d-b5aa-93a297e5677a
Ng, Soon Xin
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Babar, Zunaira, Ng, Soon Xin and Hanzo, Lajos (2013) Reduced-complexity syndrome-based TTCM decoding. IEEE Communications Letters, 17 (6), 1220-7798. (doi:10.1109/LCOMM.2013.050313.130182).

Record type: Article

Abstract

The iterative decoder of Turbo Trellis Coded Modulation (TTCM) exchanges extrinsic information between the constituent TCM decoders, which imposes a high computational complexity at the receiver. Therefore we conceive the syndrome-based block decoding of TTCM, which is capable of reducing the decoding complexity by disabling the decoder, when syndrome becomes zero. Quantitatively, we demonstrate that a decoding complexity reduction of at least 17% is attained at high SNRs, with at least 20% and 45% reduction in the 5th and 6th iterations, respectively.

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e-pub ahead of print date: 13 May 2013
Published date: June 2013
Organisations: Southampton Wireless Group
Learn more about Southampton Wireless Group research

Identifiers

Local EPrints ID: 352117
URI: http://eprints.soton.ac.uk/id/eprint/352117
DOI: doi:10.1109/LCOMM.2013.050313.130182
PURE UUID: c34cb6ee-e51b-48fc-bf87-d01b94900564
ORCID for Zunaira Babar: ORCID iD orcid.org/0000-0002-7498-4474
ORCID for Soon Xin Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 02 May 2013 10:44
Last modified: 18 Mar 2024 03:23

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Contributors

Author: Zunaira Babar ORCID iD
Author: Soon Xin Ng ORCID iD
Author: Lajos Hanzo ORCID iD

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