TY - GEN
T1 - A new two-step precoding based on rotation transformations in closed-loop MIMO systems
AU - Lee, Heunchul
AU - Park, Seokhwan
AU - Lee, Inkyu
PY - 2008
Y1 - 2008
N2 - In this paper, we propose a two-step precoding approach for multiple-input multiple-output (MIMO) systems by dividing the precoding process into two steps: spatial multiplexing transformation which establishes orthogonalized subchannels with the same quality and beamforming transformation which achieves diversity gain. In the proposed precoding method, we improve the system performance by maximizing the minimum Euclidean distance between the received signals. Compared with the optimal singular value decomposition based precoding methods, the proposed approach significantly reduces the processing complexity as well as the feedback overhead since precoding techniques are based on simple rotation transformations.
AB - In this paper, we propose a two-step precoding approach for multiple-input multiple-output (MIMO) systems by dividing the precoding process into two steps: spatial multiplexing transformation which establishes orthogonalized subchannels with the same quality and beamforming transformation which achieves diversity gain. In the proposed precoding method, we improve the system performance by maximizing the minimum Euclidean distance between the received signals. Compared with the optimal singular value decomposition based precoding methods, the proposed approach significantly reduces the processing complexity as well as the feedback overhead since precoding techniques are based on simple rotation transformations.
UR - https://www.scopus.com/pages/publications/58149127119
U2 - 10.1109/VETECF.2008.115
DO - 10.1109/VETECF.2008.115
M3 - Conference paper
AN - SCOPUS:58149127119
SN - 9781424417223
T3 - IEEE Vehicular Technology Conference
BT - The 68th IEEE Vehicular Technology Conference, VTC 2008-Fall
T2 - 68th Semi-Annual IEEE Vehicular Technology, VTC 2008-Fall, Conference
Y2 - 21 September 2008 through 24 September 2008
ER -