TY - JOUR
T1 - Enhanced Peak Cancellation with Simplified In-Band Distortion Compensation for Massive MIMO-OFDM
AU - Kageyama, Tomoya
AU - Muta, Osamu
AU - Gacanin, Haris
N1 - Funding Information:
This work was supported in part by the Japan Society for the Promotion of Science (JSPS) KAKENHI under Grant JP17K06427 and Grant JP17J04710.
Publisher Copyright:
© 2013 IEEE.
PY - 2020
Y1 - 2020
N2 - This paper presents an enhanced peak cancellation method with simplified in-band distortion compensation for massive multi-input multi-output (mMIMO) orthogonal frequency division multiplexing (OFDM). The method compensates an in-band distortion due to peak cancellation by utilizing extra transmit antennas, where a compensation signal is designed and transmitted using extra antenna elements so that in-band distortion is canceled at the receiver end. Consequently, deep peak cancellation is possible without degrading bit error rate performance. The proposed method is further extended to non-linear precoded mMIMO-OFDM systems, where the perturbation vector cancellation signal is superimposed on the compensation signal so that the received signal is demodulated without non-linear processing to remove the perturbation vector. Thus, the proposed method does not require the iterative calculation to compensate for an in-band distortion. Our results show the effectiveness of the proposed method in terms of peak-to-average power ratio (PAPR) characteristics, signal to noise and distortion power ratio (SDNR), bit error rate (BER), and throughput in comparison with the state-of-the-art.
AB - This paper presents an enhanced peak cancellation method with simplified in-band distortion compensation for massive multi-input multi-output (mMIMO) orthogonal frequency division multiplexing (OFDM). The method compensates an in-band distortion due to peak cancellation by utilizing extra transmit antennas, where a compensation signal is designed and transmitted using extra antenna elements so that in-band distortion is canceled at the receiver end. Consequently, deep peak cancellation is possible without degrading bit error rate performance. The proposed method is further extended to non-linear precoded mMIMO-OFDM systems, where the perturbation vector cancellation signal is superimposed on the compensation signal so that the received signal is demodulated without non-linear processing to remove the perturbation vector. Thus, the proposed method does not require the iterative calculation to compensate for an in-band distortion. Our results show the effectiveness of the proposed method in terms of peak-to-average power ratio (PAPR) characteristics, signal to noise and distortion power ratio (SDNR), bit error rate (BER), and throughput in comparison with the state-of-the-art.
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U2 - 10.1109/ACCESS.2020.2986280
DO - 10.1109/ACCESS.2020.2986280
M3 - Article
AN - SCOPUS:85088658405
SN - 2169-3536
VL - 8
SP - 73420
EP - 73431
JO - IEEE Access
JF - IEEE Access
M1 - 9058707
ER -