A Leakage-Based MMSE Beamforming Design for a MIMO Interference Channel

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Resumé

We propose a low complexity design of the linear transmit filters for a MIMO interference channel. This design is based on a minimum mean squared error (MMSE) approach incorporating the signal and the interference leakage for each transmitter. Unlike the previous methods, it allows a closed-form expression of the regularization factor for the MMSE transmit filter. Hence, it requires a lower computational complexity compared to the conventional MMSE approach that is optimally achieved by solving a polynomial equation to find the regularization factor. Furthermore, the mean squared error (MSE) performance of the proposed design is verified by simulations to have nearly no loss compared to the conventional MMSE approach.
OriginalsprogEngelsk
TidsskriftI E E E Signal Processing Letters
Vol/bind19
Udgave nummer6
Sider (fra-til)368-371
Antal sider4
ISSN1070-9908
DOI
StatusUdgivet - jun. 2012

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Interference Channel
Beamforming
MIMO systems
Mean Squared Error
Leakage
Multiple-input multiple-output (MIMO)
Low Complexity
Regularization
Filter
Polynomial equation
Transmitter
Transmitters
Computational complexity
Computational Complexity
Closed-form
Interference
Design
Polynomials
Simulation

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A Leakage-Based MMSE Beamforming Design for a MIMO Interference Channel. / Sun, Fan; De Carvalho, Elisabeth.

I: I E E E Signal Processing Letters, Bind 19, Nr. 6, 06.2012, s. 368-371.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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