On the performance of linear equalizers for block transmission systems

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

12 Scopus citations

Abstract

In this paper, we characterize the diversity properties of linear equalizers for block transmission systems, which unify preceded OFDM systems and zero-padded block transmissions. Fundamental results are proven to show that the diversity order of linear equalizers over fading channels can be the minimum (one) or the maximum diversity the channel offers. By exploiting the structure of the channel matrix, an alternative closed form expression for the pseudo-inverse is derived to reduce the complexity of the equalizer. Also, by quantifying the computational complexity, we demonstrate the complexity-performance tradeoff among the design for various linear equalizers. When the conditional error rate is known in closed form, a novel efficient approach is proposed to calculate the performance of linear zero-forcing equalizers. Corroborating simulations confirm that even with linear equalization, the block transmission systems perform better over channels with more taps at practical high SNRs.

Original languageEnglish (US)
Title of host publicationGLOBECOM'05
Subtitle of host publicationIEEE Global Telecommunications Conference, 2005
Pages3892-3896
Number of pages5
DOIs
StatePublished - Dec 1 2005
EventGLOBECOM'05: IEEE Global Telecommunications Conference, 2005 - St. Louis, MO, United States
Duration: Nov 28 2005Dec 2 2005

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference
Volume6

Other

OtherGLOBECOM'05: IEEE Global Telecommunications Conference, 2005
CountryUnited States
CitySt. Louis, MO
Period11/28/0512/2/05

ASJC Scopus subject areas

  • Engineering(all)

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