TY - GEN
T1 - Unitary precoding techniques based on transmit-MRC for MIMO wireless systems
AU - Park, Seok Hwan
AU - Lee, Heunchul
AU - Lee, Sang Rim
AU - Lee, Inkyu
PY - 2008
Y1 - 2008
N2 - This paper proposes a low complexity unitary precoding scheme for multiple-input multiple-output (MIMO) systems. The singular-value decomposition (SVD) based transmission is capable of maximizing the system throughput when combined with power allocation and bit loading, and is known to be optimum in terms of capacity. This paper focuses on a system which attains the same optimality as the SVD-based system with low complexity utilizing transmit maximum-ratio combining (TMRC) techniques. The TMRC scheme is the optimum structure for single beamforming systems in terms of received signal-to-noise ratio (SNR) in multiple-input single-output (MISO) channels. In this paper, we generalize the TMRC scheme to multiple beamforming MIMO systems which supports more than one data stream in coded systems. Simulation results demonstrate that the proposed scheme achieves the almost identical link performance as the SVD precoding system for arbitrary configurations with reduced complexity.
AB - This paper proposes a low complexity unitary precoding scheme for multiple-input multiple-output (MIMO) systems. The singular-value decomposition (SVD) based transmission is capable of maximizing the system throughput when combined with power allocation and bit loading, and is known to be optimum in terms of capacity. This paper focuses on a system which attains the same optimality as the SVD-based system with low complexity utilizing transmit maximum-ratio combining (TMRC) techniques. The TMRC scheme is the optimum structure for single beamforming systems in terms of received signal-to-noise ratio (SNR) in multiple-input single-output (MISO) channels. In this paper, we generalize the TMRC scheme to multiple beamforming MIMO systems which supports more than one data stream in coded systems. Simulation results demonstrate that the proposed scheme achieves the almost identical link performance as the SVD precoding system for arbitrary configurations with reduced complexity.
UR - http://www.scopus.com/inward/record.url?scp=51249087960&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51249087960&partnerID=8YFLogxK
U2 - 10.1109/ICC.2008.893
DO - 10.1109/ICC.2008.893
M3 - Conference contribution
AN - SCOPUS:51249087960
SN - 9781424420742
T3 - IEEE International Conference on Communications
SP - 4764
EP - 4768
BT - ICC 2008 - IEEE International Conference on Communications, Proceedings
T2 - IEEE International Conference on Communications, ICC 2008
Y2 - 19 May 2008 through 23 May 2008
ER -