TY - GEN
T1 - Complexity reduced lattice-reduction-aided MIMO receiver with virtual channel detection
AU - Yoshikawa, Shogo
AU - Denno, Satoshi
AU - Morikura, Masahiro
PY - 2012/12/1
Y1 - 2012/12/1
N2 - The Lattice-reduction aided MIMO receiver with virtual channels has been proposed that can increase transmission speed for a user in downlinks. Although the proposed receiver achieves superior performance even when the number of receive antennas is much less than that of spatially multiplexed streams, however, the receiver has more computational complexity than conventional lattice reduction-aided MIMO receivers. Then, this paper proposes novel techniques to reduce computational complexity for lattice-reduction aided MIMO receivers with virtual channels. In fact, the proposed techniques are shown to reduce the computational complexity to about 40 % of the original configuration in 8 × 2 MIMO-OFDM systems. Even if the proposed techniques are applied, the MIMO receiver is also shown to achieve superior performance in 10×2 MIMO-OFDM systems.
AB - The Lattice-reduction aided MIMO receiver with virtual channels has been proposed that can increase transmission speed for a user in downlinks. Although the proposed receiver achieves superior performance even when the number of receive antennas is much less than that of spatially multiplexed streams, however, the receiver has more computational complexity than conventional lattice reduction-aided MIMO receivers. Then, this paper proposes novel techniques to reduce computational complexity for lattice-reduction aided MIMO receivers with virtual channels. In fact, the proposed techniques are shown to reduce the computational complexity to about 40 % of the original configuration in 8 × 2 MIMO-OFDM systems. Even if the proposed techniques are applied, the MIMO receiver is also shown to achieve superior performance in 10×2 MIMO-OFDM systems.
UR - http://www.scopus.com/inward/record.url?scp=84880318115&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84880318115&partnerID=8YFLogxK
U2 - 10.1109/ICSPCS.2012.6507940
DO - 10.1109/ICSPCS.2012.6507940
M3 - Conference contribution
AN - SCOPUS:84880318115
SN - 9781467323932
T3 - 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings
BT - 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012 - Proceedings
T2 - 6th International Conference on Signal Processing and Communication Systems, ICSPCS 2012
Y2 - 12 December 2012 through 14 December 2012
ER -