Transmitter redundancy for blind estimation and equalization of time- and frequency-selective channels

Cihan Tepedelenlioglu, Georgios B. Giannakis

Research output: Contribution to journalArticle

59 Scopus citations

Abstract

Joint mitigation of time- and frequency-selective fading is an important and challenging problem in mobile communications. Relying on transmitter-induced redundancy, we propose novel channel estimation and symbol recovery approaches for blind identification and equalization of time- and frequency-selective channels, where the time variation is modeled deterministically by a basis expansion. The resulting statistical algorithm enables the usage of a single antenna, dispenses with channel disparity conditions of existing approaches, and allows channel order overestimation. In addition, new deterministic algorithms for generalized OFDM systems are introduced that produce reliable estimates with few data points at high SNR's Simulations illustrate the approaches developed.

Original languageEnglish (US)
Pages (from-to)2029-2043
Number of pages15
JournalIEEE Transactions on Signal Processing
Volume48
Issue number7
DOIs
StatePublished - Dec 3 2000
Externally publishedYes

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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