TY - GEN
T1 - A transmission mode selection scheme for MIMO interference channels with antenna correlations
AU - Kim, Jin Sung
AU - Lee, Kyoung Jae
AU - Park, Haewook
AU - Lee, Inkyu
PY - 2012
Y1 - 2012
N2 - In this paper, we study K-user multiple-input multiple-output (MIMO) interference channels (IC) in the presence of antenna correlations. Although interference alignment (IA) achieves the maximum multiplexing gain, i.e., degrees of freedom (DOF), the actual performance is degraded due to ill-conditioned channels caused by the antenna correlations. To enhance the overall system performance, we thus consider a transmission mode selection scheme which adaptively determines the number of data streams at each transmitter-receiver pair in a distributed fashion using local channel state information (CSI). A filter update process is exploited in order to estimate the performance regarding each transmission mode successively by considering the actual channel conditions as well as signal-to-noise ratio (SNR). Simulation results show that our mode selection scheme enhances the sum rate performance compared to the conventional full data stream transmissions in spatially correlated MIMO IC.
AB - In this paper, we study K-user multiple-input multiple-output (MIMO) interference channels (IC) in the presence of antenna correlations. Although interference alignment (IA) achieves the maximum multiplexing gain, i.e., degrees of freedom (DOF), the actual performance is degraded due to ill-conditioned channels caused by the antenna correlations. To enhance the overall system performance, we thus consider a transmission mode selection scheme which adaptively determines the number of data streams at each transmitter-receiver pair in a distributed fashion using local channel state information (CSI). A filter update process is exploited in order to estimate the performance regarding each transmission mode successively by considering the actual channel conditions as well as signal-to-noise ratio (SNR). Simulation results show that our mode selection scheme enhances the sum rate performance compared to the conventional full data stream transmissions in spatially correlated MIMO IC.
UR - http://www.scopus.com/inward/record.url?scp=84877653090&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84877653090&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2012.6503821
DO - 10.1109/GLOCOM.2012.6503821
M3 - Conference contribution
AN - SCOPUS:84877653090
SN - 9781467309219
T3 - GLOBECOM - IEEE Global Telecommunications Conference
SP - 4465
EP - 4469
BT - 2012 IEEE Global Communications Conference, GLOBECOM 2012
T2 - 2012 IEEE Global Communications Conference, GLOBECOM 2012
Y2 - 3 December 2012 through 7 December 2012
ER -