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The Super-Trellis Structure of Turbo Codes

The Super-Trellis Structure of Turbo Codes
The Super-Trellis Structure of Turbo Codes
In this contribution we derive the super-trellis structure of turbo codes. We show that this structure and its associated decoding complexity depend strongly on the interleaver applied in the turbo encoder. We provide upper bounds for the super-trellis complexity. Turbo codes are usually decoded by an iterative decoding algorithm, which is suboptimum. Applying the super-trellis structure, we can optimally decode simple turbo codes and compare the associated bit-error rate results to those of iterative algorithms. Index Terms—Code trellis, iterative decoding, MLSE decoding, turbo codes.
0018-9448
2212-2241
Breiling, M.
91eb6a95-0c2d-4ccc-8e4a-9f57b741f345
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Breiling, M.
91eb6a95-0c2d-4ccc-8e4a-9f57b741f345
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Breiling, M. and Hanzo, L. (2000) The Super-Trellis Structure of Turbo Codes IEEE Transactions on Information Theory, 46, (6), pp. 2212-2241.

Record type: Article

Abstract

In this contribution we derive the super-trellis structure of turbo codes. We show that this structure and its associated decoding complexity depend strongly on the interleaver applied in the turbo encoder. We provide upper bounds for the super-trellis complexity. Turbo codes are usually decoded by an iterative decoding algorithm, which is suboptimum. Applying the super-trellis structure, we can optimally decode simple turbo codes and compare the associated bit-error rate results to those of iterative algorithms. Index Terms—Code trellis, iterative decoding, MLSE decoding, turbo codes.

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Published date: September 2000
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 254459
URI: http://eprints.soton.ac.uk/id/eprint/254459
ISSN: 0018-9448
PURE UUID: d260e547-9292-430f-b61a-e79353ff0be5
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 12 Jan 2004
Last modified: 18 Jul 2017 09:52

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Contributors

Author: M. Breiling
Author: L. Hanzo ORCID iD

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