TY - GEN
T1 - A peak power aware linear-precoding scheme for MIMO-SDM systems
AU - Takabatake, Satoshi
AU - Muta, Osamu
AU - Furukawa, Hiroshi
PY - 2014/6/25
Y1 - 2014/6/25
N2 - In MIMO space division multIPlexing (SDM) systems, the peak power of the transmit signal at each antenna element is increased by the precoder and hence it causes the power efficiency degradation and/or nonlinear distortion at the power amplifier. To solve this problem, this paper present a peak power aware precoding scheme for MIMO-SDM systems, where the precoder is designed to mitigate the peak output power at each antenna element so that peak amplitude of the transmit signal at each antenna is reduced while minimizing the performance degradation caused by the peak power restriction. The proposed system employs an aLTErnative iterative optimization algorithm that determines the precoding matrix so that the precoding and virtual post-coding matrices are aLTErnatively optimized under the constraint of peak output at each antenna element. Simulation results show that the proposed method is effective in restricting the peak transmission power at each antenna within a permissible level while mitigating performance degradation in bit error rate (BER) performance of the precoded SDM systems.
AB - In MIMO space division multIPlexing (SDM) systems, the peak power of the transmit signal at each antenna element is increased by the precoder and hence it causes the power efficiency degradation and/or nonlinear distortion at the power amplifier. To solve this problem, this paper present a peak power aware precoding scheme for MIMO-SDM systems, where the precoder is designed to mitigate the peak output power at each antenna element so that peak amplitude of the transmit signal at each antenna is reduced while minimizing the performance degradation caused by the peak power restriction. The proposed system employs an aLTErnative iterative optimization algorithm that determines the precoding matrix so that the precoding and virtual post-coding matrices are aLTErnatively optimized under the constraint of peak output at each antenna element. Simulation results show that the proposed method is effective in restricting the peak transmission power at each antenna within a permissible level while mitigating performance degradation in bit error rate (BER) performance of the precoded SDM systems.
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U2 - 10.1109/PIMRC.2014.7136197
DO - 10.1109/PIMRC.2014.7136197
M3 - Conference contribution
AN - SCOPUS:84944317662
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 397
EP - 401
BT - 2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, PIMRC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
Y2 - 2 September 2014 through 5 September 2014
ER -