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

Gaojian Huang; Yuan Ding; Shan Ouyang

doi:10.1109/LAWP.2021.3056962

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 (TMPAs) to synthesize multi-carrier 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 (PAPR) 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 language	English
Journal	IEEE Antennas and Wireless Propagation Letters
Early online date	3 Feb 2021
DOIs	https://doi.org/10.1109/LAWP.2021.3056962
Publication status	E-pub ahead of print - 3 Feb 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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10.1109/LAWP.2021.3056962

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abstract = "In this letter we present a new approach of using time modulated phased arrays (TMPAs) to synthesize multi-carrier 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 (PAPR) 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.",

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