Turbo-equalization for multilevel modulation: an efficient low-complexity scheme

被引：0

作者：

Dejonghe, A ^{[1
]}

Vandendorpe, L ^{[1
]}

机构：

[1] Catholic Univ Louvain, Commun & Remote Sensing Lab, B-1348 Louvain, Belgium

来源：

2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS | 2002年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper addresses the problem of iterative equalization and decoding (turbo-equalization) when bit-interleaved multilevel modulations are considered. The goal is to propose an efficient low-complexity solution in this context, where optimal turboequalization is totally untractable. Therefore, we generalize reduced-complexity soft-in/soft-out (SISO) equalizers based on the minimum mean square error (MMSE) criterion (originally proposed in a BPSK context) to this particular scheme. Performances are illustrated through simulations. We show the influence of the mapping on the signal-to-noise ratio (SNR) threshold and on asymptotic performances, and link the obtained results to iterative demodulation and decoding on an additive white gaussian noise (AWGN) channel.

引用

页码：1863 / 1867

页数：5

共 11 条

[1]

[Anonymous], P AS C SIGN SYST COM

[2] OPTIMAL DECODING OF LINEAR CODES FOR MINIMIZING SYMBOL ERROR RATE [J].

BAHL, LR ;

COCKE, J ;

JELINEK, F ;

RAVIV, J .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1974, 20 (02) :284-287

[3]

BAUCH G, 1997, P 2 EUR PERS MOB COM, P307

[4] ITERATIVE CORRECTION OF INTERSYMBOL INTERFERENCE - TURBO-EQUALIZATION [J].

DOUILLARD, C ;

JEZEQUEL, M ;

BERROU, C ;

PICART, A ;

DIDIER, P ;

GLAVIEUX, A .

EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS, 1995, 6 (05) :507-511

[5]

Glavieux A., 1997, P INT S TURB COD REL, VVolume 962102, P96

[6]

GOROKHOV A, 2001, IEEE VTS VEH TECHNOL

[7]

ten Brink S, 1998, GLOBECOM 98: IEEE GLOBECOM 1998 - CONFERENCE RECORD, VOLS 1-6, P579, DOI 10.1109/GLOCOM.1998.775793

[8]

Tüchler M, 2001, IEEE VTS VEH TECHNOL, P1449, DOI 10.1109/VETECS.2001.944627

[9]

TUCHLER M, UNPUB IEEE T SIGNAL

[10]

VILA P, 2000, P 2 INT S TURB COD R, P515

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