Frequency offset tracking for OFDM systems via scattered pilots and virtual carriers

Tao Cui*, Feifei Gao, A. Nallanathan

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

In this paper, we propose a new carrier frequency offset (CFO) tracking algorithm for orthogonal frequency division multiplexing (OFDM) systems. Assuming that the channel remains constant during two consecutive OFDM blocks, a CFO estimation algorithm is proposed based on the limited number of pilots in each OFDM block. Identifiability of this pilot based algorithm is fully discussed under the noise free environment. A weighted algorithm is then developed by considering both pilot carriers and virtual carriers. The asymptotic mean square error (MSE) of the proposed algorithm is provided, and simulation results clearly show the performance improvement of the proposed algorithm over the existing methods.

Original languageEnglish
Title of host publication2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14
Place of PublicationNEW YORK
PublisherIEEE
Pages5120-5125
Number of pages6
ISBN (Print)978-1-4244-0352-3
Publication statusPublished - 2007
EventIEEE International Conference on Communications (ICC 2007) - Glasgow, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Publication series

NameIEEE International Conference on Communications
PublisherIEEE
ISSN (Print)1550-3607

Conference

ConferenceIEEE International Conference on Communications (ICC 2007)
Country/TerritoryUnited Kingdom
Period24/06/200728/06/2007

Keywords

  • TIME

Fingerprint

Dive into the research topics of 'Frequency offset tracking for OFDM systems via scattered pilots and virtual carriers'. Together they form a unique fingerprint.

Cite this