Group ordered successive interference cancellation for multiuser detection in MIMO CDMA systems

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18 Citations (Scopus)

Abstract

We propose in this paper a novel group detection scheme that we denote by group ordered successive interference cancellation (GOSIC) multiuser detector. We consider a multiuser MIMO CDMA communication system, where each user carries more than one antenna, but is assigned only one spreading signature. Users are then considered as virtual groups. Our proposed receiver consists of ordering these users at the receiver side in order to maximize the overall system performance, and carrying group detection for each one using layered space-time processing. We define and derive the optimal user order based on the group signal to noise ratio (GSNR), and show that not only it is optimal in this sense but also in the sense of asymptotic symmetric energy. We also propose another sub-optimal order in order to overcome the complexity issues. Finally, we compare the performance of our proposed receivers with traditional group serial interference cancellation and conventional layered space-time multiuser architectures, and show that significant improvement is introduced.

Original languageEnglish
Title of host publication2003 IEEE Wireless Communications and Networking Conference, WCNC 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages888-893
Number of pages6
ISBN (Electronic)0780377001
DOIs
Publication statusPublished - 1 Jan 2003
Event2003 IEEE Wireless Communications and Networking Conference: The Dawn of Pervasive Communication, WCNC 2003 - New Orleans, United States
Duration: 16 Mar 200320 Mar 2003

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume2
ISSN (Print)1525-3511

Other

Other2003 IEEE Wireless Communications and Networking Conference: The Dawn of Pervasive Communication, WCNC 2003
CountryUnited States
CityNew Orleans
Period16/3/0320/3/03

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Sfar, S., & Letaief, K. B. (2003). Group ordered successive interference cancellation for multiuser detection in MIMO CDMA systems. In 2003 IEEE Wireless Communications and Networking Conference, WCNC 2003 (pp. 888-893). [1200489] (IEEE Wireless Communications and Networking Conference, WCNC; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2003.1200489