TY - JOUR
T1 - A Leakage-Based MMSE Beamforming Design for a MIMO Interference Channel
AU - Sun, Fan
AU - De Carvalho, Elisabeth
PY - 2012/6
Y1 - 2012/6
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84860702402&partnerID=8YFLogxK
U2 - 10.1109/LSP.2012.2196040
DO - 10.1109/LSP.2012.2196040
M3 - Journal article
SN - 1070-9908
VL - 19
SP - 368
EP - 371
JO - I E E E Signal Processing Letters
JF - I E E E Signal Processing Letters
IS - 6
ER -