TY - GEN
T1 - Statistical precoder design for spatial multiplexing systems in correlated MIMO fading channels
AU - Moon, Sung Hyun
AU - Kim, Jin Sung
AU - Lee, Inkyu
PY - 2010
Y1 - 2010
N2 - It has been shown that the performance of multipleinput multiple-output (MIMO) spatial multiplexing systems is significantly degraded when spatial correlation exists between transmit and receive antenna pairs. In this paper, we investigate designs of a new statistical precoder for spatial multiplexing systems with maximum likelihood (ML) receiver which requires only correlation statistics at the transmitter. Two kinds of closedform solution precoders based on rotation and power allocation are proposed by means of maximizing the minimum Euclidean distance of joint symbol constellations. In addition, we extend our results to linear receivers for correlated channels. We provide a method which yields the same profits from the proposed precoders based on a simple zero-forcing (ZF) receiver. The simulation shows that 2dB and 8dB gains are achieved for ML and ZF systems with two transmit antennas, respectively, compared to the conventional systems.
AB - It has been shown that the performance of multipleinput multiple-output (MIMO) spatial multiplexing systems is significantly degraded when spatial correlation exists between transmit and receive antenna pairs. In this paper, we investigate designs of a new statistical precoder for spatial multiplexing systems with maximum likelihood (ML) receiver which requires only correlation statistics at the transmitter. Two kinds of closedform solution precoders based on rotation and power allocation are proposed by means of maximizing the minimum Euclidean distance of joint symbol constellations. In addition, we extend our results to linear receivers for correlated channels. We provide a method which yields the same profits from the proposed precoders based on a simple zero-forcing (ZF) receiver. The simulation shows that 2dB and 8dB gains are achieved for ML and ZF systems with two transmit antennas, respectively, compared to the conventional systems.
UR - http://www.scopus.com/inward/record.url?scp=77954897990&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954897990&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2010.5493705
DO - 10.1109/VETECS.2010.5493705
M3 - Conference contribution
AN - SCOPUS:77954897990
SN - 9781424425198
T3 - IEEE Vehicular Technology Conference
BT - 2010 IEEE 71st Vehicular Technology
T2 - 2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring
Y2 - 16 May 2010 through 19 May 2010
ER -