Multi-carrier Directional Modulation Symbol Synthesis Using Time-Modulated Phased Arrays

Gaojian Huang, Yuan Ding, Shan Ouyang

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Abstract

In this letter, we present a new approach of using time-modulated phased arrays to synthesize multicarrier directional modulation (DM) symbols for physical-layer security. In particular, the modulated waveform synthesis is achieved with the careful design of the switching time sequences, instead of in digital baseband; thus, reducing the peak-to-average power ratio of signals going through the radio frequency (RF) chain, and only a single RF chain is required here. The operation principle and synthesis approach are elaborated and demonstrated. In addition, the efficacy of the proposed DM approach is validated via the bit-error-rate (BER) metric.

Original languageEnglish
Pages (from-to)567-571
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume20
Issue number4
Early online date3 Feb 2021
DOIs
Publication statusPublished - Apr 2021

Keywords

  • Beamforming gain
  • bit error rate (BER)
  • directional modulation (DM)
  • multi-carrier
  • peak-to-average power ratio (PAPR)
  • time-modulated phased array (TMPA)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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