ML estimation and correction of frequency offset for MC-CDMA systems over fading channels

Q. Tian, K. B. Letaief

Research output: Contribution to journalConference article

8 Citations (Scopus)

Abstract

Multi-Carrier Code Division Multiple Access (MC-CDMA) has been proposed as one of the air interface candidates for the third generation wireless communication systems. However, MC-CDMA systems suffer a lot of performance degradation due to carrier frequency offsets. In this paper, we derive the likelihood function for the carrier frequency offset for MC-CDMA systems for the downlink over Rayleigh flat fading channels. We also propose a gradient algorithm to estimate and minimize the carrier frequency offset in a tracking mode. Simulation results show that system performance can be improved significantly even with only a few iterations.

Original languageEnglish
Pages (from-to)571-575
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume1
Issue number53ND
Publication statusPublished - 1 Jan 2001
EventIEEE VTS 53rd Vehicular Technology Conference (VTS SPRING 2001) - Rhodes, Greece
Duration: 6 May 20019 May 2001

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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