An intercarrier interference suppression technique using time-domain windowing for OFDM systems

Chin Liang Wang*, Yu Chih Huang, Po Chung Shen

*Corresponding author for this work

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

11 Scopus citations

Abstract

In this paper, we propose a new intercarrier interference (ICI) suppression scheme for orthogonal frequency division multiplexing (OFDVI) systems. The proposed approach can be regarded as an improved version of the method using correlative coding, where the data samples of the tail subcarriers in an OFDM symbol are encoded with the data samples of the head ones in the same OFDM symbol, instead of being encoded with those of the subsequent OFDM symbol for the original approach. For low complexity, the modified correlative coding scheme is realized as a windowing function, where the parameters are optimized through theoretical analysis. A demodulation algorithm which does not need prior information of the transmit sequence is also developed. Computer simulation results show that the proposed scheme not only achieves better performance in ICI suppression, but also prevents error propagation through OFDM symbols. The penalty is only a slight increase in the computational complexity at the receiver.

Original languageEnglish
Title of host publication2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings
Pages2518-2522
Number of pages5
StatePublished - 2006
Event2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, Australia
Duration: 7 May 200610 Jul 2006

Publication series

NameIEEE Vehicular Technology Conference
Volume5
ISSN (Print)1550-2252

Conference

Conference2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring
CountryAustralia
CityMelbourne
Period7/05/0610/07/06

Keywords

  • Correlative coding
  • Frequency offset
  • ICI suppression
  • Intercarrier interference (ICI)
  • Orthogonal frequency division multiplexing (OFDM)

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