Complexity reduction of turbo decoding

Akira Shibutani; Hirohito Suda; Fumiyuki Adachi

doi:10.1109/VETECF.1999.801558

Complexity reduction of turbo decoding

Akira Shibutani, Hirohito Suda, Fumiyuki Adachi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

28 Citations (Scopus)

Abstract

This paper addresses two complexity reduction techniques for turbo decoding. The first is turbo-CRC encoding where CRC is incorporated into the turbo decoding iteration processes to reduce the average number of iterations needed. Simulations show that the W-CDMA reverse link suffers no performance degradation even if the average number of iterations is reduced by more than 75% at BER=10^-6 under frequency selective Rayleigh fading. The second is a new low-complexity turbo internal interleaver called the prime interleaver. Turbo coding with the proposed interleaver can generate codewords having good Hamming weight for a wide range of interleaving lengths (257-8192 bits).

Original language	English
Title of host publication	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Pages	1570-1574
Number of pages	5
Edition	3
DOIs	https://doi.org/10.1109/VETECF.1999.801558
Publication status	Published - 1999 Dec 1
Externally published	Yes
Event	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall - Amsterdam, Netherlands Duration: 1999 Sep 19 → 1999 Sep 22

Publication series

Name	IEEE Vehicular Technology Conference
Number	3
Volume	50
ISSN (Print)	1550-2252

Other

Other	IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall
Country/Territory	Netherlands
City	Amsterdam
Period	99/9/19 → 99/9/22

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/VETECF.1999.801558

Cite this

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title = "Complexity reduction of turbo decoding",

abstract = "This paper addresses two complexity reduction techniques for turbo decoding. The first is turbo-CRC encoding where CRC is incorporated into the turbo decoding iteration processes to reduce the average number of iterations needed. Simulations show that the W-CDMA reverse link suffers no performance degradation even if the average number of iterations is reduced by more than 75% at BER=10-6 under frequency selective Rayleigh fading. The second is a new low-complexity turbo internal interleaver called the prime interleaver. Turbo coding with the proposed interleaver can generate codewords having good Hamming weight for a wide range of interleaving lengths (257-8192 bits).",

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year = "1999",

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booktitle = "IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall",

edition = "3",

note = "IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall ; Conference date: 19-09-1999 Through 22-09-1999",

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TY - GEN

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AU - Shibutani, Akira

AU - Suda, Hirohito

AU - Adachi, Fumiyuki

PY - 1999/12/1

Y1 - 1999/12/1

N2 - This paper addresses two complexity reduction techniques for turbo decoding. The first is turbo-CRC encoding where CRC is incorporated into the turbo decoding iteration processes to reduce the average number of iterations needed. Simulations show that the W-CDMA reverse link suffers no performance degradation even if the average number of iterations is reduced by more than 75% at BER=10-6 under frequency selective Rayleigh fading. The second is a new low-complexity turbo internal interleaver called the prime interleaver. Turbo coding with the proposed interleaver can generate codewords having good Hamming weight for a wide range of interleaving lengths (257-8192 bits).

AB - This paper addresses two complexity reduction techniques for turbo decoding. The first is turbo-CRC encoding where CRC is incorporated into the turbo decoding iteration processes to reduce the average number of iterations needed. Simulations show that the W-CDMA reverse link suffers no performance degradation even if the average number of iterations is reduced by more than 75% at BER=10-6 under frequency selective Rayleigh fading. The second is a new low-complexity turbo internal interleaver called the prime interleaver. Turbo coding with the proposed interleaver can generate codewords having good Hamming weight for a wide range of interleaving lengths (257-8192 bits).

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DO - 10.1109/VETECF.1999.801558

M3 - Conference contribution

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T3 - IEEE Vehicular Technology Conference

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BT - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall

T2 - IEEE VTS 50th Vehicular Technology Conference, VTC 1999-Fall

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ER -

Complexity reduction of turbo decoding

Abstract

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