TY - GEN
T1 - Complexity reduction for lattice reduction aided detection in MIMO-OFDM systems
AU - Choi, Byoung Joon
AU - An, Chan Ho
AU - Yang, Janghoon
AU - Jang, Seung Hoon
AU - Kim, Dong Ku
PY - 2010
Y1 - 2010
N2 - A Lattice reduction (LR) aided receiver for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems can achieve near ML detector performance. However, Performing LR for each subcarrier can result in a large complexity. To deal with this problem, a low complexity scheme for lattice reduction (LR) aided detection in the MIMO OFDM system is presented. From exploiting frequency correlation among the neighboring channel matrix and the uni-modular transformation matrix of the preceding subcarrier, nearly LR reduced channel matrix is produced. Simulation results show that the proposed scheme can achieve the same performance with the conventional system while its complexity is significantly lower.
AB - A Lattice reduction (LR) aided receiver for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems can achieve near ML detector performance. However, Performing LR for each subcarrier can result in a large complexity. To deal with this problem, a low complexity scheme for lattice reduction (LR) aided detection in the MIMO OFDM system is presented. From exploiting frequency correlation among the neighboring channel matrix and the uni-modular transformation matrix of the preceding subcarrier, nearly LR reduced channel matrix is produced. Simulation results show that the proposed scheme can achieve the same performance with the conventional system while its complexity is significantly lower.
UR - http://www.scopus.com/inward/record.url?scp=77952628733&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952628733&partnerID=8YFLogxK
U2 - 10.1109/ICCAE.2010.5451812
DO - 10.1109/ICCAE.2010.5451812
M3 - Conference contribution
AN - SCOPUS:77952628733
SN - 9781424455850
T3 - 2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
SP - 801
EP - 806
BT - 2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
T2 - 2nd International Conference on Computer and Automation Engineering, ICCAE 2010
Y2 - 26 February 2010 through 28 February 2010
ER -