Adaptive minimum bit error rate multiuser detection for asynchronous MC-CDMA systems in frequency selective Rayleigh fading channels

S. J. Yi, C. C. Tsimenidis, O. R. Hinton, B. S. Sharif

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

18 Scopus citations

Abstract

An Adaptive minimum bit error rate (MBER) based linear multiuser detection scheme is proposed for an asynchronous multicarrier code-division multiple-access (MC-CDMA) system in frequency selective Rayleigh fading channels. In general, a MC-CDMA system employs the minimum mean square error (MMSE) receiver due to its good performance and amenability to adaptive implementation. However, the MSE cost function is not optimal in terms of the bit error probability performance of the system. The proposed multiuser detector (MUD) that directly minimizes the BER can significantly improve the performance by employing an adaptive stochastic gradient algorithm based on the estimation of kernel density function in order to adjust the weights in the receiver. Simulation results demonstrate a clear performance improvement by using the proposed multiuser detection scheme.

Original languageBritish English
Title of host publicationPIMRC2003 - 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, Proceedings
Pages1269-1273
Number of pages5
DOIs
StatePublished - 2003
Event14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC2003 - Beijing, China
Duration: 7 Sep 200310 Sep 2003

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2

Conference

Conference14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC2003
Country/TerritoryChina
CityBeijing
Period7/09/0310/09/03

Keywords

  • BER
  • MC-CDMA
  • MMSE
  • Multiuser detector
  • Rayleigh fading

Fingerprint

Dive into the research topics of 'Adaptive minimum bit error rate multiuser detection for asynchronous MC-CDMA systems in frequency selective Rayleigh fading channels'. Together they form a unique fingerprint.

Cite this