Time-modulated OFDM Directional Modulation Transmitters

Yuan Ding; Vincent Fusco; Junqing Zhang; Wenqin Wang

Time-modulated OFDM Directional Modulation Transmitters

Yuan Ding, Vincent Fusco, Junqing Zhang, Wenqin Wang

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Abstract

In this paper directional modulation (DM) transmitters, designed for orthogonal frequency-division multiplexing (OFDM) wireless data transfer are proposed using time-modulated arrays (TMAs). It is shown that by properly designing the switch controlling time sequences the proposed time-modulated OFDM DM systems exhibit promising features, such as i) requires only one radio frequency (RF) chain, ii) the conventional efficient OFDM signal construction approach, i.e., by using inverse fast Fourier transform (IFFT) modules, can be adopted, iii) it is ‘DM synthesis-free’, meaning that there is no need to re-synthesize the array excitation vectors for different secure communication directions, different modulation schemes, and different DM power efficiencies; and iv) the trade-off between secrecy performance and power efficiency can be flexibly adjusted.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	IEEE Transactions on Vehicular Technology
Publication status	Accepted/In press - 20 Jun 2019

Keywords

Directional Modulation

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title = "Time-modulated OFDM Directional Modulation Transmitters",

abstract = "In this paper directional modulation (DM) transmitters, designed for orthogonal frequency-division multiplexing (OFDM) wireless data transfer are proposed using time-modulated arrays (TMAs). It is shown that by properly designing the switch controlling time sequences the proposed time-modulated OFDM DM systems exhibit promising features, such as i) requires only one radio frequency (RF) chain, ii) the conventional efficient OFDM signal construction approach, i.e., by using inverse fast Fourier transform (IFFT) modules, can be adopted, iii) it is {\textquoteleft}DM synthesis-free{\textquoteright}, meaning that there is no need to re-synthesize the array excitation vectors for different secure communication directions, different modulation schemes, and different DM power efficiencies; and iv) the trade-off between secrecy performance and power efficiency can be flexibly adjusted.",

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T1 - Time-modulated OFDM Directional Modulation Transmitters

AU - Ding, Yuan

AU - Fusco, Vincent

AU - Zhang, Junqing

AU - Wang, Wenqin

PY - 2019/6/20

Y1 - 2019/6/20

N2 - In this paper directional modulation (DM) transmitters, designed for orthogonal frequency-division multiplexing (OFDM) wireless data transfer are proposed using time-modulated arrays (TMAs). It is shown that by properly designing the switch controlling time sequences the proposed time-modulated OFDM DM systems exhibit promising features, such as i) requires only one radio frequency (RF) chain, ii) the conventional efficient OFDM signal construction approach, i.e., by using inverse fast Fourier transform (IFFT) modules, can be adopted, iii) it is ‘DM synthesis-free’, meaning that there is no need to re-synthesize the array excitation vectors for different secure communication directions, different modulation schemes, and different DM power efficiencies; and iv) the trade-off between secrecy performance and power efficiency can be flexibly adjusted.

AB - In this paper directional modulation (DM) transmitters, designed for orthogonal frequency-division multiplexing (OFDM) wireless data transfer are proposed using time-modulated arrays (TMAs). It is shown that by properly designing the switch controlling time sequences the proposed time-modulated OFDM DM systems exhibit promising features, such as i) requires only one radio frequency (RF) chain, ii) the conventional efficient OFDM signal construction approach, i.e., by using inverse fast Fourier transform (IFFT) modules, can be adopted, iii) it is ‘DM synthesis-free’, meaning that there is no need to re-synthesize the array excitation vectors for different secure communication directions, different modulation schemes, and different DM power efficiencies; and iv) the trade-off between secrecy performance and power efficiency can be flexibly adjusted.

KW - Directional Modulation

M3 - Article

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EP - 5

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

ER -