Complexity reduction of maximum-likelihood multiuser detection (ML-MUD) receivers with carrier interferometry codes in MC-CDMA

Layla Tadjpour*, Shang-Ho Tsai, C. C.Jay Kuo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

We propose to use carrier interferometry (CI) codes to reduce the complexity of the maximum-likelihood multiuser-detection (ML-MUD) receiver in MC-CDMA systems with carrier frequency offsets (CFOs). Complexity reduction is achieved by exploiting the sparsity of the cross-correlation matrix of CI codes. It is shown that, for a fully-loaded MC-CDMA with spread gain N over a multipath channel with length L, the complexity of the ML-MUD receiver grows exponentially with 2L-1 (instead of N), where L ≪ N in a typical setting. Moreover, an upper bound for the minimum error probability is derived. Finally, simulation results are given to corroborate theoretical results.

Original languageEnglish
Title of host publicationICC 2008 - IEEE International Conference on Communications, Proceedings
Pages800-804
Number of pages5
DOIs
StatePublished - 12 Sep 2008
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: 19 May 200823 May 2008

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

ConferenceIEEE International Conference on Communications, ICC 2008
Country/TerritoryChina
CityBeijing
Period19/05/0823/05/08

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