Downlink MC-2D-CDMA over time-variant frequency-selective rayleigh fading channels

R. Fa, B. S. Sharif, C. C. Tsimenidis

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

1 Scopus citations

Abstract

In this paper, the performance of a downlink synchronous MC-CDMA system with joint frequency-time domain spreading over time-variant frequency-selective Rayleigh fading channels is investigated. We propose an adaptive two dimensional MMSE (minimum mean square error) receiver, which works in decision-directed model after the initial training period. Due to the time variability, a subcarrier phase tracker, which comprises a bank of phase locked-loops (PLLs), is employed in the proposed receiver to track the fading phase variability. Furthermore, a simplified phase tracker structure is proposed to reduce the complexity of system. The theoretical bit error rate (BER) is derived and simulation results indicate that the proposed receiver can achieve good frequency diversity and subcarrier synchronisation, compared to the conventional MCCDMA structures.

Original languageBritish English
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Pages2956-2960
Number of pages5
DOIs
StatePublished - 2007
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Publication series

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

Conference

Conference2007 IEEE International Conference on Communications, ICC'07
Country/TerritoryUnited Kingdom
CityGlasgow, Scotland
Period24/06/0728/06/07

Keywords

  • Adaptive receiver
  • Frequency-selective Rayleigh fading
  • Phase locked loops
  • Two dimensional

Fingerprint

Dive into the research topics of 'Downlink MC-2D-CDMA over time-variant frequency-selective rayleigh fading channels'. Together they form a unique fingerprint.

Cite this