TY - GEN
T1 - Partitioned vector quantization for MU-MIMO downlink broadcasting
AU - Kibria, Mirza Golam
AU - Murata, Hidekazu
AU - Yoshida, Susumu
AU - Yamamoto, Koji
AU - Umehara, Daisuke
AU - Denno, Satoshi
AU - Morikura, Masahiro
PY - 2012/12/1
Y1 - 2012/12/1
N2 - A practical and efficient vector quantization called partitioned vector quantization (P-VQ) based non-linear precoder for MIMO downlink broadcasting channels has been analyzed in this paper. P- VQ has been found to be an efficient way of reducing the memory requirements and search complexity in conventional VQ systems, especially for large MIMO. Simulation results reveal that P-VQ technique can enhance the overall quantization performance in terms of achieved capacity, bit error rate (BER) at a cost of reasonable additional complexity under certain feedback budgets. Tomlinson-Harashima precoding (THP), a power and complexity efficient precoding technique along with data dependent vector perturbation (VP) has been employed to meet the power constraint requirements of our system. Least-square (LS) channel estimation is performed at the user terminals to acquire their channel state information (CSI).
AB - A practical and efficient vector quantization called partitioned vector quantization (P-VQ) based non-linear precoder for MIMO downlink broadcasting channels has been analyzed in this paper. P- VQ has been found to be an efficient way of reducing the memory requirements and search complexity in conventional VQ systems, especially for large MIMO. Simulation results reveal that P-VQ technique can enhance the overall quantization performance in terms of achieved capacity, bit error rate (BER) at a cost of reasonable additional complexity under certain feedback budgets. Tomlinson-Harashima precoding (THP), a power and complexity efficient precoding technique along with data dependent vector perturbation (VP) has been employed to meet the power constraint requirements of our system. Least-square (LS) channel estimation is performed at the user terminals to acquire their channel state information (CSI).
UR - http://www.scopus.com/inward/record.url?scp=84878937273&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878937273&partnerID=8YFLogxK
U2 - 10.1109/VTCFall.2012.6399280
DO - 10.1109/VTCFall.2012.6399280
M3 - Conference contribution
AN - SCOPUS:84878937273
SN - 9781467318815
T3 - IEEE Vehicular Technology Conference
BT - 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings
T2 - 76th IEEE Vehicular Technology Conference, VTC Fall 2012
Y2 - 3 September 2012 through 6 September 2012
ER -