TY - GEN
T1 - Minimum BER precoding in 1-Bit massive MIMO systems
AU - Jedda, Hela
AU - Nossek, Josef A.
AU - Mezghani, Amine
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/9/15
Y1 - 2016/9/15
N2 - 1-bit digital-to-analog (DACs) and analog-to-digital converters (ADCs) are gaining more interest in massive MIMO systems for economical and computational efficiency. We present a new precoding technique to mitigate the inter-user-interference (IUI) and the channel distortions in a 1-bit downlink MU-MISO system with QPSK symbols. The transmit signal vector is optimized taking into account the 1-bit quantization. We develop a sort of mapping based on a look-up table (LUT) between the input signal and the transmit signal. The LUT is updated for each channel realization. Simulation results show a significant gain in terms of the uncoded bit-error-ratio (BER) compared to the existing linear precoding techniques.
AB - 1-bit digital-to-analog (DACs) and analog-to-digital converters (ADCs) are gaining more interest in massive MIMO systems for economical and computational efficiency. We present a new precoding technique to mitigate the inter-user-interference (IUI) and the channel distortions in a 1-bit downlink MU-MISO system with QPSK symbols. The transmit signal vector is optimized taking into account the 1-bit quantization. We develop a sort of mapping based on a look-up table (LUT) between the input signal and the transmit signal. The LUT is updated for each channel realization. Simulation results show a significant gain in terms of the uncoded bit-error-ratio (BER) compared to the existing linear precoding techniques.
UR - http://www.scopus.com/inward/record.url?scp=84990845586&partnerID=8YFLogxK
U2 - 10.1109/SAM.2016.7569655
DO - 10.1109/SAM.2016.7569655
M3 - Conference contribution
AN - SCOPUS:84990845586
T3 - Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
BT - 2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016
PB - IEEE Computer Society
T2 - 2016 IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2016
Y2 - 10 July 2016 through 13 July 2016
ER -