[Invited Paper] Performance Analysis of Precoded MIMO Systems with Adaptive Peak Power Suppression

• Muta Osamu

  Center for Japan-Egypt Cooperation in Science and Technology, Kyushu University

• Kageyama Tomoya

  Graduate School and Faculty of Information Science and Electrical Engineering

Abstract

This paper presents two approaches for reducing the peak power in precoded multi-input multi-output (MIMO) systems with space division multiplexing (SDM). First, we present a peak power aware linear precoding scheme for MIMO-SDM single carrier systems, where the precoder is designed to restrict per-antenna transmit power below a permissible level while mitigating the performance degradation caused by per-antenna power restriction. Second, we present an analytical method to represent bit error rate (BER) performance of maximum ratio combining (MRC) precoded massive MIMO OFDM systems with adaptive peak cancellation, where peak amplitude is canceled below a given threshold to reduce peak-to-average power ratio (PAPR). With this method, we clarify the impact of adaptive peak cancellation on approximated BER of MRC-precoded massive MIMO OFDM with an arbitrary number of the transmit antennas and users. Numerical results prove that our proposed approaches are effective in restricting the peak power at each antenna while mitigating performance degradation in BER performance of the precoded MIMO-SDM systems.

Journal

• ITE Transactions on Media Technology and Applications

  ITE Transactions on Media Technology and Applications 8 (1), 2-10, 2020

  The Institute of Image Information and Television Engineers

Keywords

• MIMO
• peak power
• precoding
• peak cancellation

Details

• CRID: 1390002184860374016
• NII Article ID: 130007779391
• DOI: 10.3169/mta.8.2
• ISSN: 21867364
• Web Site: https://www.jstage.jst.go.jp/article/mta/8/1/8_2/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed