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

Research output: Contribution to journalArticle

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 - 2001
Externally publishedYes

Fingerprint

Carrier Frequency Offset
Frequency Offset
Multicarrier
Code Division multiple Access
Fading Channels
Fading channels
Code division multiple access
Gradient Algorithm
Likelihood Function
Wireless Communication
Rayleigh
Communication Systems
System Performance
Communication systems
Degradation
Minimise
Iteration
Air
Estimate
Simulation

ASJC Scopus subject areas

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

Cite this

ML estimation and correction of frequency offset for MC-CDMA systems over fading channels. / Tian, Q.; Letaief, Khaled.

In: IEEE Vehicular Technology Conference, Vol. 1, No. 53ND, 2001, p. 571-575.

Research output: Contribution to journalArticle

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