Time-modulated OFDM Directional Modulation Transmitters

Yuan Ding, Vincent Fusco, Junqing Zhang, Wenqin Wang

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)
49 Downloads (Pure)


In this paper, directional modulation (DM) transmitters, designed for orthogonal frequency-division multiplexing (OFDM) wireless data transfer are proposed using time-modulated arrays. It is shown that by properly designing the switch controlling time sequences the proposed time-modulated OFDM DM systems exhibit promising features, such as 1) requires only one radio frequency chain, 2) the conventional efficient OFDM signal construction approach, i.e., by using inverse fast Fourier transform modules, can be adopted, 3) it is “DM synthesis-free,” meaning that there is no need to resynthesize the array excitation vectors for different secure communication directions, different modulation schemes, and different DM power efficiencies, and 4) the tradeoff between secrecy performance and power efficiency can be flexibly adjusted.
Original languageEnglish
Pages (from-to)8249-8253
Number of pages5
JournalIEEE Transactions on Vehicular Technology
Issue number8
Early online date24 Jun 2019
Publication statusPublished - Aug 2019


  • Directional Modulation


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