DocumentCode
1057750
Title
FIR Beamforming for Frequency-Selective Channels with Linear Equalization
Author
Liang, Yang-wen ; Schober, Robert ; Gerstacker, Wolfgang
Author_Institution
Univ. of British Columbia, Vancouver
Volume
11
Issue
7
fYear
2007
fDate
7/1/2007 12:00:00 AM
Firstpage
622
Lastpage
624
Abstract
In this letter, we consider transmit beamforming with finite impulse response (FIR) filters for frequency-selective channels and simple linear equalization at the receiver. Since a closed-form solution for the optimum FIR beamforming filters (BFFs) does not seem to exist, an efficient numerical method for their recursive calculation is developed. Our numerical results show that for typical GSM/EDGE channels short FIR BFFs can closely approach the performance of the optimum infinite impulse response (IIR) BFFs derived in [1] and yield significant gains over single-antenna transmission.
Keywords
FIR filters; frequency selective surfaces; multibeam antennas; radio access networks; GSM/EDGE channels; finite impulse response filters; frequency-selective channels; linear equalization; optimum FIR beamforming filters; single-antenna transmission; Array signal processing; Fading; Finite impulse response filter; Frequency; GSM; IIR filters; Intersymbol interference; Performance gain; Receiving antennas; Transmitters;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2007.070336
Filename
4273781
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