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Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes

Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes
Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes
Traditional Turbo EQualization (TEQ) schemes suffer from residual bit errors due to the non-recursive nature of the channel imposing Inter-Symbol-Interference (ISI). The performance of the traditional TEQ scheme may, however, be improved if an intermediate recursive channel codec is invoked, which results in a three-stage serially concatenated system. This intermediate code is necessary, especially when the inner module cannot be rendered recursive, for example, when a Minimum Mean Square Error (MMSE) equalizer is invoked. Our EXtrinsic Information Transfer (EXIT) chart analysis explicitly explains the performance gain, and based on this explanation IRregular Convolutional Codes (IRCCs) are constructed to be used as the outer code for the sake of achieving near capacity performance. Furthermore, the proposed analysis and design procedure may be applied in the context of diverse iterative receivers employing multiple soft-in/soft-out (SISO) modules.
6 pages
Wang, J.
dc08532d-c8db-4f40-83ae-f5abf4acc068
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Wang, J.
dc08532d-c8db-4f40-83ae-f5abf4acc068
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Wang, J., Ng, S.X., Wolfgang, A., Yang, L-L., Chen, S. and Hanzo, L. (2006) Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes At Turbo-Coding-2006, Germany. 03 - 07 Apr 2006. , 6 pages.

Record type: Conference or Workshop Item (Paper)

Abstract

Traditional Turbo EQualization (TEQ) schemes suffer from residual bit errors due to the non-recursive nature of the channel imposing Inter-Symbol-Interference (ISI). The performance of the traditional TEQ scheme may, however, be improved if an intermediate recursive channel codec is invoked, which results in a three-stage serially concatenated system. This intermediate code is necessary, especially when the inner module cannot be rendered recursive, for example, when a Minimum Mean Square Error (MMSE) equalizer is invoked. Our EXtrinsic Information Transfer (EXIT) chart analysis explicitly explains the performance gain, and based on this explanation IRregular Convolutional Codes (IRCCs) are constructed to be used as the outer code for the sake of achieving near capacity performance. Furthermore, the proposed analysis and design procedure may be applied in the context of diverse iterative receivers employing multiple soft-in/soft-out (SISO) modules.

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More information

Published date: 2006
Additional Information: Event Dates: 3-7 Apri 2006
Venue - Dates: Turbo-Coding-2006, Germany, 2006-04-03 - 2006-04-07
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 262367
URI: http://eprints.soton.ac.uk/id/eprint/262367
PURE UUID: 4e7a7ae7-c2dd-420b-aac3-0a6d295496de
ORCID for S.X. Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for L-L. Yang: ORCID iD orcid.org/0000-0002-2032-9327
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 15 Apr 2006
Last modified: 18 Jul 2017 08:51

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Contributors

Author: J. Wang
Author: S.X. Ng ORCID iD
Author: A. Wolfgang
Author: L-L. Yang ORCID iD
Author: S. Chen
Author: L. Hanzo ORCID iD

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