Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels

Xiaodong Cai, Georgios B. Giannakis

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

44 Citations (Scopus)

Abstract

While rapid variations of the fading channel cause intercarrier interference (ICI) in OFDM, thereby degrading its performance considerably, they also introduce temporal diversity, which can be exploited to improve the performance. In this paper, we first derive a matched filter bound (MFB) for OFDM transmissions over doubly-selective Rayleigh fading channels, which benchmarks the best possible performance if ICI is completely cancelled without noise enhancement. We then develop low-complexity MMSE and DFE receivers for ICI suppression. Simulations show that the DFE receiver can collect significant gains of ICI-impaired OFDM with affordable complexity.

Original languageEnglish (US)
Title of host publicationConference Record of the Asilomar Conference on Signals, Systems and Computers
EditorsM.B. Matthews
Pages1822-1826
Number of pages5
Volume2
StatePublished - 2002
Externally publishedYes
EventThe Thirty-Sixth Asilomar Conference on Signals Systems and Computers - Pacific Groove, CA, United States
Duration: Nov 3 2002Nov 6 2002

Other

OtherThe Thirty-Sixth Asilomar Conference on Signals Systems and Computers
CountryUnited States
CityPacific Groove, CA
Period11/3/0211/6/02

Fingerprint

Interference suppression
Frequency selective fading
Rayleigh fading
Fading channels
Orthogonal frequency division multiplexing
Decision feedback equalizers
Matched filters

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Hardware and Architecture

Cite this

Cai, X., & Giannakis, G. B. (2002). Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels. In M. B. Matthews (Ed.), Conference Record of the Asilomar Conference on Signals, Systems and Computers (Vol. 2, pp. 1822-1826)

Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels. / Cai, Xiaodong; Giannakis, Georgios B.

Conference Record of the Asilomar Conference on Signals, Systems and Computers. ed. / M.B. Matthews. Vol. 2 2002. p. 1822-1826.

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

Cai, X & Giannakis, GB 2002, Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels. in MB Matthews (ed.), Conference Record of the Asilomar Conference on Signals, Systems and Computers. vol. 2, pp. 1822-1826, The Thirty-Sixth Asilomar Conference on Signals Systems and Computers, Pacific Groove, CA, United States, 11/3/02.
Cai X, Giannakis GB. Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels. In Matthews MB, editor, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. 2002. p. 1822-1826
Cai, Xiaodong ; Giannakis, Georgios B. / Low-complexity ICI suppression for OFDM over time- and frequency-selective Rayleigh fading channels. Conference Record of the Asilomar Conference on Signals, Systems and Computers. editor / M.B. Matthews. Vol. 2 2002. pp. 1822-1826
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