Joint Channel and Phase Noise Compensation for OFDM in Fast-Fading Multipath Applications Articles uri icon

publication date

  • February 2009

start page

  • 636

end page

  • 643

issue

  • 2

volume

  • 58

International Standard Serial Number (ISSN)

  • 0018-9545

Electronic International Standard Serial Number (EISSN)

  • 1939-9359

abstract

  • Orthogonal frequency-division multiplexing (OFDM) systems, such as the new wireless standards or the schemes proposed for third-generation (3G) evolution, exhibit great sensitivity to the effects of phase noise and the time-varying propagation channel, which can introduce interchannel interference (ICI) dueto the loss of orthogonality among subcarriers. In this paper, joint channel estimation and ICI reduction schemes are investigated, which compensate the effects of phase noise and multipath channel in a realistic scenario, where the channel is not assumed perfectly known, whereas its estimation is obtained by combining a decision-feedback scheme and a pilot-aided estimator.We propose a technique for ICI compensation that has reduced complexity by only considering the most significant terms of ICI.