TY - GEN
T1 - Antenna selection for multi-user MIMO at millimeter-wave spectrum with lens antenna arrays
AU - Qian, Rongrong
AU - Sellathurai, Mathini
AU - Fang, Xu Ming
PY - 2017/7/31
Y1 - 2017/7/31
N2 - The recent concept of beamspace multiple-input-multiple-output (MIMO) enables the millimeter-wave (mmWave) MIMO system to reduce the radio-frequency chains by utilising beam selection and yet achieve near-optimal sum-rate performance. In this work, we study the lens antenna array as the transmit antenna at the base station for mmWave multiuser MIMO (MU-MIMO) system. Due to the direction-based energy focusing property of the array, the beam selection is able to reduce to antenna selection without significant performance degradation as that using traditional antenna selection. For this mmWave MU-MIMO system, direction-based antenna selection method is proposed, where the inter-user interference, resulting from the case that the same antenna is selected for different users with high probability, is considered and solved by a re-selection based on minimization of sum-rate loss. Simulation results show that spectral and energy effectiveness of the proposed antenna selection method for the mmWave MU-MIMO using lens antenna array.
AB - The recent concept of beamspace multiple-input-multiple-output (MIMO) enables the millimeter-wave (mmWave) MIMO system to reduce the radio-frequency chains by utilising beam selection and yet achieve near-optimal sum-rate performance. In this work, we study the lens antenna array as the transmit antenna at the base station for mmWave multiuser MIMO (MU-MIMO) system. Due to the direction-based energy focusing property of the array, the beam selection is able to reduce to antenna selection without significant performance degradation as that using traditional antenna selection. For this mmWave MU-MIMO system, direction-based antenna selection method is proposed, where the inter-user interference, resulting from the case that the same antenna is selected for different users with high probability, is considered and solved by a re-selection based on minimization of sum-rate loss. Simulation results show that spectral and energy effectiveness of the proposed antenna selection method for the mmWave MU-MIMO using lens antenna array.
KW - antenna selection
KW - Lens antenna array
KW - massive MIMO
KW - mmWave communication
UR - http://www.scopus.com/inward/record.url?scp=85028304980&partnerID=8YFLogxK
U2 - 10.1109/ICC.2017.7997062
DO - 10.1109/ICC.2017.7997062
M3 - Conference contribution
AN - SCOPUS:85028304980
T3 - IEEE International Conference on Communications
BT - 2017 IEEE International Conference on Communications (ICC)
PB - IEEE
T2 - 2017 IEEE International Conference on Communications
Y2 - 21 May 2017 through 25 May 2017
ER -