TY - GEN
T1 - Vector perturbation using signal space conversion assisted vector ranking algorithm
AU - Tomeba, Hiromichi
AU - Onodera, Takashi
AU - Kubota, Minoru
AU - Maehara, Fumiaki
AU - Takahata, Fumio
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2016/4/3
Y1 - 2016/4/3
N2 - Nonlinear precoding multi-user multiple-input multiple-output using vector perturbation (VP MU-MIMO) can provide good frequency efficiency at the cost of computational complexity, which exponentially increases as the number of spatial multiplexed users increases. This is because the original VP precoding requires to exhaustively search the optimum transmit signal vector among all the combinations of each user's transmit signal candidates. To reduce the computational complexity, in this paper, we propose signal space conversion assisted vector ranking algorithm, which exploits the equivalency between the search of optimum transmit signal vector in the VP precoding and the signal detection from received signal in the general signal transmission. And, its transmission performance and computational complexity are evaluated by computer simulation.
AB - Nonlinear precoding multi-user multiple-input multiple-output using vector perturbation (VP MU-MIMO) can provide good frequency efficiency at the cost of computational complexity, which exponentially increases as the number of spatial multiplexed users increases. This is because the original VP precoding requires to exhaustively search the optimum transmit signal vector among all the combinations of each user's transmit signal candidates. To reduce the computational complexity, in this paper, we propose signal space conversion assisted vector ranking algorithm, which exploits the equivalency between the search of optimum transmit signal vector in the VP precoding and the signal detection from received signal in the general signal transmission. And, its transmission performance and computational complexity are evaluated by computer simulation.
KW - Multi-user MIMO
KW - broadcast channel
KW - vector perturbation
UR - http://www.scopus.com/inward/record.url?scp=84912072674&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84912072674&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2014.6952323
DO - 10.1109/WCNC.2014.6952323
M3 - Conference contribution
AN - SCOPUS:84912072674
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 1218
EP - 1223
BT - IEEE Wireless Communications and Networking Conference, WCNC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE Wireless Communications and Networking Conference, WCNC 2014
Y2 - 6 April 2014 through 9 April 2014
ER -