A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling

Nian Zeng Xiang, Ali Ghrayeb

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper presents a new blind carrier frequency offset estimation scheme for orthogonal frequency division multiplexing (OFDM) systems with constant modulus (CM) signaling. We consider both single-input single-output (SISO) systems and multiple-input multiple-output (MIMO) systems with orthogonal space-time block coding. The proposed scheme is based on the reasonable assumption that the number of resolvable multipaths is much smaller than the number of subcarriers, which implies that the channel frequency response on two consecutive sub-carriers is approximately the same. Based on this, we propose cost functions which minimize the difference of the signal power between neighboring subcarriers. We prove the identiflability of the proposed scheme and show that significant performance improvements with low complexity can be achieved, all relative to existing estimation schemes.

Original languageEnglish
Title of host publicationSPAWC 2007 - 8th IEEE Workshop on Signal Advances in Wireless Communications
Publication statusPublished - 1 Dec 2007
Event8th IEEE Signal Processing Advances in Wireless Communications, SPAWC 2007 - Helsinki, Finland
Duration: 17 Jun 200720 Jun 2007

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

Other

Other8th IEEE Signal Processing Advances in Wireless Communications, SPAWC 2007
CountryFinland
CityHelsinki
Period17/6/0720/6/07

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ASJC Scopus subject areas

  • Signal Processing
  • Engineering(all)

Cite this

Xiang, N. Z., & Ghrayeb, A. (2007). A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling. In SPAWC 2007 - 8th IEEE Workshop on Signal Advances in Wireless Communications [4401288] (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC).