Selective self ICI cancellation scheme for OFDM systems

  • Authors:

  • Arvind Kumar;Rajoo Pandey

  • Affiliations:

  • Electronics and Communication Engineering Department, National Institute of Technology, Kurukshetra, Kurukshetra, Haryana, India;Electronics and Communication Engineering Department, National Institute of Technology, Kurukshetra, Kurukshetra, Haryana, India

  • Venue:
  • ACC'08 Proceedings of the WSEAS International Conference on Applied Computing Conference
  • Year:
  • 2008

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Abstract

Orthogonal frequency division multiplexing (OFDM) is a well-suited multiplexing scheme for the fourth generation (4G) communication systems. The major drawback of OFDM systems is intercarrier interference (ICI), which degrades the system performance considerably. A self ICI cancellation scheme, proposed by Zaho, and Armstrong, improves the system performance in terms of symbol error rate (SER) and carrier to interference ratio (CIR) but reduces the system throughput to half as compared to normal OFDM. This paper presents a selective ICI self-cancellation scheme that improves the system throughput and reduces the SER for higher order modulation schemes (i.e. for 16-QAM, 32-QAM etc).