Distributed multiple-component turbo codes for cooperative hybrid ARQ
Distributed multiple-component turbo codes for cooperative hybrid ARQ
We design distributed multiple-component turbo-codes (MCTCs) for cooperative automatic repeat request (CARQ) aided systems, which are capable of attaining both a similar performance and throughput as the conventional twin-component turbo code (TCTC) aided system, while imposing a significantly lower decoding complexity. The reduction in the decoding complexity of the MCTC-CARQ scheme is a direct benefit of using low-memory MCTC component encoders, combined with the novel principle of deferred iteration (DI), where the decoding process is only initiated when sufficient information has been accumulated at the receiver so that an open tunnel exists in the Extrinsic information transfer (EXIT) charts. In the presence of multiple collaborating relay nodes (RNs), the specific RN which succeeds in decoding the source message, and additionally, has the highest signal-to-noise ratio at the destination node is selected as the retransmission node. Our numerical results demonstrate that the proposed MCTC-CARQ protocol is capable of reducing the decoding complexity by up to 40\% compared to its TCTC-CARQ counterpart, while achieving the same throughput and reliability.
599-602
Zhang, Bo
b4357fc4-109b-4499-a865-ad0b2386c076
Chen, Hong
408a190d-f7b1-4668-a856-9a2afbcd95c3
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Maunder, Robert G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
June 2013
Zhang, Bo
b4357fc4-109b-4499-a865-ad0b2386c076
Chen, Hong
408a190d-f7b1-4668-a856-9a2afbcd95c3
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Maunder, Robert G.
76099323-7d58-4732-a98f-22a662ccba6c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Zhang, Bo, Chen, Hong and El-Hajjar, Mohammed et al.
(2013)
Distributed multiple-component turbo codes for cooperative hybrid ARQ.
IEEE Signal Processing Letters, 20 (6), .
(doi:10.1109/LSP.2013.2259478).
Abstract
We design distributed multiple-component turbo-codes (MCTCs) for cooperative automatic repeat request (CARQ) aided systems, which are capable of attaining both a similar performance and throughput as the conventional twin-component turbo code (TCTC) aided system, while imposing a significantly lower decoding complexity. The reduction in the decoding complexity of the MCTC-CARQ scheme is a direct benefit of using low-memory MCTC component encoders, combined with the novel principle of deferred iteration (DI), where the decoding process is only initiated when sufficient information has been accumulated at the receiver so that an open tunnel exists in the Extrinsic information transfer (EXIT) charts. In the presence of multiple collaborating relay nodes (RNs), the specific RN which succeeds in decoding the source message, and additionally, has the highest signal-to-noise ratio at the destination node is selected as the retransmission node. Our numerical results demonstrate that the proposed MCTC-CARQ protocol is capable of reducing the decoding complexity by up to 40\% compared to its TCTC-CARQ counterpart, while achieving the same throughput and reliability.
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Accepted/In Press date: 1 May 2013
Published date: June 2013
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 352102
URI: http://eprints.soton.ac.uk/id/eprint/352102
PURE UUID: 3269214b-bfc6-4224-9298-34274d886742
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Date deposited: 01 May 2013 17:31
Last modified: 18 Mar 2024 03:22
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Author:
Bo Zhang
Author:
Hong Chen
Author:
Mohammed El-Hajjar
Author:
Robert G. Maunder
Author:
L. Hanzo
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