TY - GEN
T1 - A convergent version of Max SINR for the MIMO interference channel
AU - Wilson, Craig
AU - Veeravalli, Venugopal Varadachari
PY - 2011/10/26
Y1 - 2011/10/26
N2 - We consider the problem of designing signals to transmit over the MIMO interference channel by extending the Max SINR algorithm. The Max SINR algorithm starts with arbitrary beamformers and then designs optimal receivers to maximize the SINR at each receiver. The Max SINR algorithm then alternates the direction of communication and repeats this process. This algorithm is known to perform well but there is no proof that it converges. We propose a modification to Max SINR using a power control step to make a metric similar to the sum rate converge. If we also use successive interference cancellation(SIC), then our metric is exactly the sum rate. We show via simulations that performance of the modified Max SINR algorithm, unlike the other convergent alternatives, is nearly identical to that of the original Max SINR algorithm.
AB - We consider the problem of designing signals to transmit over the MIMO interference channel by extending the Max SINR algorithm. The Max SINR algorithm starts with arbitrary beamformers and then designs optimal receivers to maximize the SINR at each receiver. The Max SINR algorithm then alternates the direction of communication and repeats this process. This algorithm is known to perform well but there is no proof that it converges. We propose a modification to Max SINR using a power control step to make a metric similar to the sum rate converge. If we also use successive interference cancellation(SIC), then our metric is exactly the sum rate. We show via simulations that performance of the modified Max SINR algorithm, unlike the other convergent alternatives, is nearly identical to that of the original Max SINR algorithm.
KW - interference channels
KW - iterative algorithms
KW - throughput
KW - wireless networks
UR - http://www.scopus.com/inward/record.url?scp=80054830127&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80054830127&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2011.6033952
DO - 10.1109/ISIT.2011.6033952
M3 - Conference contribution
AN - SCOPUS:80054830127
SN - 9781457705953
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 2208
EP - 2212
BT - 2011 IEEE International Symposium on Information Theory Proceedings, ISIT 2011
T2 - 2011 IEEE International Symposium on Information Theory Proceedings, ISIT 2011
Y2 - 31 July 2011 through 5 August 2011
ER -