MIMO channel estimation in spatially correlated environments

Yen Chih Chen*, Yu-Ted Su

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

6 Scopus citations

Abstract

We present in this paper a novel model-based scheme for estimating MIMO block fading channels. The proposed method can be applied to estimate the conventional independent and identically distributed (i.i.d.) complex Gaussian as well as the more realistic spatial-correlated channels. Excellent mean squared identification error (MSIE) performance can be attained with proper designed system parameters. We also derive an adaptive least squares (RLS) version that can be used for estimating a static channel or tracking time-varying channels. Furthermore, when the angle spread (AS) at the transmit site is small and thus the correlations amongst the transmit antennas are high, we show that it is possible to extract the information about the transmitter's angle of departure (AOD) for potential post-processing applications.

Original languageEnglish
Pages498-502
Number of pages5
StatePublished - 1 Dec 2004
Event2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004 - Barcelona, Spain
Duration: 5 Sep 20048 Sep 2004

Conference

Conference2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004
CountrySpain
CityBarcelona
Period5/09/048/09/04

Keywords

  • Channel estimation
  • Space-time signal processing
  • Spatial correlation

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