TY - GEN
T1 - On the optimality of beamforming for multi-user MISO interference channels with single-user detection
AU - Shang, Xiaohu
AU - Chen, Biao
AU - Poor, H. Vincent
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2009
Y1 - 2009
N2 - For a multi-user interference channel with multi-antenna transmitters and single-antenna receivers, by restricting each receiver to a single-user detector, computing the largest achievable rate region amounts to solving a family of non-convex optimization problems. Recognizing the intrinsic connection between the signal power at the intended receiver and the interference power at the unintended receiver, the original family of non-convex optimization problems is converted into a new family of convex optimization problems. It is shown that, for such interference channels with each receiver implementing single-user detection, transmitter beamforming can achieve all boundary points of the achievable rate region.
AB - For a multi-user interference channel with multi-antenna transmitters and single-antenna receivers, by restricting each receiver to a single-user detector, computing the largest achievable rate region amounts to solving a family of non-convex optimization problems. Recognizing the intrinsic connection between the signal power at the intended receiver and the interference power at the unintended receiver, the original family of non-convex optimization problems is converted into a new family of convex optimization problems. It is shown that, for such interference channels with each receiver implementing single-user detection, transmitter beamforming can achieve all boundary points of the achievable rate region.
KW - Achievable rate region
KW - Beamforming
KW - Gaussian interference channel
UR - http://www.scopus.com/inward/record.url?scp=77951563916&partnerID=8YFLogxK
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U2 - 10.1109/GLOCOM.2009.5426006
DO - 10.1109/GLOCOM.2009.5426006
M3 - Conference contribution
AN - SCOPUS:77951563916
SN - 9781424441488
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference
T2 - 2009 IEEE Global Telecommunications Conference, GLOBECOM 2009
Y2 - 30 November 2009 through 4 December 2009
ER -