Time-modulated OFDM Directional Modulation Transmitters

Y. Ding; Vincent Fusco; Junqing Zhang; Wen-Qin Wang

doi:10.1109/TVT.2019.2924543

Time-modulated OFDM Directional Modulation Transmitters

Y. Ding, Vincent Fusco, Junqing Zhang, Wen-Qin Wang

School of Electronics, Electrical Engineering and Computer Science

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

253 Downloads (Pure)

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)	1-3
Number of pages	3
Journal	IEEE Transactions on Vehicular Technology
DOIs	https://doi.org/10.1109/TVT.2019.2924543
Publication status	Published - 26 Jun 2019

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Time-modulated OFDM Directional Modulation Transmitters
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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.",

author = "Y. Ding and Vincent Fusco and Junqing Zhang and Wen-Qin Wang",

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doi = "10.1109/TVT.2019.2924543",

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JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

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Time-modulated OFDM Directional Modulation Transmitters

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