Lattice decoding for joint detection in direct-sequence CDMA systems

Loïc Brunel, Joseph Boutros

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

A new joint detection method based on sphere packing lattice decoding is presented in this paper. The algorithm is suitable for both synchronous and asynchronous multiple access direct-sequence code-division multiple-access (DS-CDMA) systems, and it may jointly detect up to 64 users with a reasonable complexity. The detection complexity is independent of the modulation size and large M-PAM or M-QAM constellations can be used. Furthermore, a theoretical gain analysis is performed in which the multiple-access system performance is derived from the lattice parameters.

Original languageEnglish
Pages (from-to)1030-1037
Number of pages8
JournalIEEE Transactions on Information Theory
Volume49
Issue number4
DOIs
Publication statusPublished - 1 Apr 2003
Externally publishedYes

Fingerprint

Pulse amplitude modulation
Quadrature amplitude modulation
Code division multiple access
Lattice constants
Decoding
Modulation
performance

Keywords

  • Code-division multiple access (CDMA)
  • Lattice decoding
  • Multiuser detection
  • Sphere decoder

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

Cite this

Lattice decoding for joint detection in direct-sequence CDMA systems. / Brunel, Loïc; Boutros, Joseph.

In: IEEE Transactions on Information Theory, Vol. 49, No. 4, 01.04.2003, p. 1030-1037.

Research output: Contribution to journalArticle

@article{7a2dfaf4610a48fc90d5b29c7a8a8e61,
title = "Lattice decoding for joint detection in direct-sequence CDMA systems",
abstract = "A new joint detection method based on sphere packing lattice decoding is presented in this paper. The algorithm is suitable for both synchronous and asynchronous multiple access direct-sequence code-division multiple-access (DS-CDMA) systems, and it may jointly detect up to 64 users with a reasonable complexity. The detection complexity is independent of the modulation size and large M-PAM or M-QAM constellations can be used. Furthermore, a theoretical gain analysis is performed in which the multiple-access system performance is derived from the lattice parameters.",
keywords = "Code-division multiple access (CDMA), Lattice decoding, Multiuser detection, Sphere decoder",
author = "Lo{\"i}c Brunel and Joseph Boutros",
year = "2003",
month = "4",
day = "1",
doi = "10.1109/TIT.2003.809506",
language = "English",
volume = "49",
pages = "1030--1037",
journal = "IEEE Transactions on Information Theory",
issn = "0018-9448",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

TY - JOUR

T1 - Lattice decoding for joint detection in direct-sequence CDMA systems

AU - Brunel, Loïc

AU - Boutros, Joseph

PY - 2003/4/1

Y1 - 2003/4/1

N2 - A new joint detection method based on sphere packing lattice decoding is presented in this paper. The algorithm is suitable for both synchronous and asynchronous multiple access direct-sequence code-division multiple-access (DS-CDMA) systems, and it may jointly detect up to 64 users with a reasonable complexity. The detection complexity is independent of the modulation size and large M-PAM or M-QAM constellations can be used. Furthermore, a theoretical gain analysis is performed in which the multiple-access system performance is derived from the lattice parameters.

AB - A new joint detection method based on sphere packing lattice decoding is presented in this paper. The algorithm is suitable for both synchronous and asynchronous multiple access direct-sequence code-division multiple-access (DS-CDMA) systems, and it may jointly detect up to 64 users with a reasonable complexity. The detection complexity is independent of the modulation size and large M-PAM or M-QAM constellations can be used. Furthermore, a theoretical gain analysis is performed in which the multiple-access system performance is derived from the lattice parameters.

KW - Code-division multiple access (CDMA)

KW - Lattice decoding

KW - Multiuser detection

KW - Sphere decoder

UR - http://www.scopus.com/inward/record.url?scp=0037399394&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037399394&partnerID=8YFLogxK

U2 - 10.1109/TIT.2003.809506

DO - 10.1109/TIT.2003.809506

M3 - Article

AN - SCOPUS:0037399394

VL - 49

SP - 1030

EP - 1037

JO - IEEE Transactions on Information Theory

JF - IEEE Transactions on Information Theory

SN - 0018-9448

IS - 4

ER -