Blind MIMO Equalization in the Frequency Domain

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Hai Huyen Dam, Sven Nordholm, Hans-Jürgen Zepernick
Title: Blind MIMO Equalization in the Frequency Domain
Conference name: Australian Communications Theory Workshop
Year: 2005
Pagination: 179-183
Publisher: IEEE
City: Brisbane, Australia
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (*** Error ***)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
Authors e-mail:,,
Language: English
Abstract: Broadband wireless systems require low complexity
equalizers which can cope with long channel impulse responses
and severe intersymbol interference (ISI). In this paper, a frequency
domain (FD) approach for adaptive blind equalization for
multiple-input multiple-output (MIMO) communication systems
is proposed. As an initial step, a time domain (TD) block based
updated adaptation is first developed which updates the equalizer
coefficients once per each block of data symbols. As such,
this algorithm can be equivalently implemented in the FD to
reduce computational complexity associated with the symbol by
symbol TD update. Simulation results show that the proposed
algorithms can successfully separate and equalize the received
signals with a significantly lower computational complexity than
a corresponding TD approach.
Subject: Telecommunications\General