Low complexity linear equalizers with maximum multipath diversity for zero-padded transmissions

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

17 Scopus citations

Abstract

In wireless communications the fading multipath channel attenuates and distorts the transmitted signal. This makes equalization of the frequency selective channel of utmost importance. To exploit the full diversity provided by the multipath channel, maximum likelihood (ML) decoding is usually employed, which is computationally complex. In this paper we show that a specific linear zero-forcing equalizer is capable of benefitting from maximum multipath diversity in systems where the transmitted blocks are separated by zero guard intervals of length greater than the channel length (the well-known trailing zeros approach [6]). Furthermore, we exploit the banded Toeplitz structure of the channel matrix to reduce the complexity of the equalization process, and quantify the reduction in complexity. Simulations corroborate our results.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Pages636-639
Number of pages4
Volume4
StatePublished - 2003
Event2003 IEEE International Conference on Accoustics, Speech, and Signal Processing - Hong Kong, Hong Kong
Duration: Apr 6 2003Apr 10 2003

Other

Other2003 IEEE International Conference on Accoustics, Speech, and Signal Processing
CountryHong Kong
CityHong Kong
Period4/6/034/10/03

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Acoustics and Ultrasonics

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  • Cite this

    Tepedelenlioglu, C. (2003). Low complexity linear equalizers with maximum multipath diversity for zero-padded transmissions. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 4, pp. 636-639)