Reduced complexity and improved performance receiver for downlink MIMO MC-CDMA systems

A. S. Khrwat, B. S. Sharif, C. C. Tsimenidis

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

3 Scopus citations

Abstract

In this paper a low complexity MIMO MC-CDMA receiver is proposed. We investigate the receiver performance and complexity in the case of despreading Multicarrier Code Division Multiple Access signals (MC-CDMA) prior to V-BLAST detection in Multiple Input Multiple Output systems (MIMO). The proposed structure shows that for iterative detection, despreading before detection (DBD) reduces the effect of multiple access interference (MAI), and the reported results demonstrate improved bit error rate (BER) performance and user capacity of the system over despreading after detection (DAD). Furthermore, DBD results in reduced system complexity. The performance of both detectors is evaluated using computer simulations for a frequency selective slow Rayleigh fading channel.

Original languageBritish English
Title of host publication2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP2008
Pages1596-1599
Number of pages4
DOIs
StatePublished - 2008
Event2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP2008 - St. Julians, Malta
Duration: 12 Mar 200814 Mar 2008

Publication series

Name2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP 2008

Conference

Conference2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP2008
Country/TerritoryMalta
CitySt. Julians
Period12/03/0814/03/08

Keywords

  • MC-CDMA
  • MIMO
  • Multicarrier
  • V-BLAST

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