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Huang, G, Chen, S, Ding, Y, Li, X, Nallanathan, A and Mumtaz, S 
ORCID: https://orcid.org/0000-0001-6364-6149,
2023.
Security-enhanced directional modulation symbol synthesis using high efficiency time-modulated arrays.
IEEE Transactions on Vehicular Technology.
ISSN 0018-9545
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Abstract
Time-modulated arrays (TMAs) have been found useful to construct directional modulation (DM) transmitters, offering physical-layer security. Two issues, however, exist in conventional TMA DM, which are high power loss and generation of mirror harmonic frequency signals that may compromise wireless security. In this paper, we propose to construct DM transmitters using a high efficiency TMA. By carefully designing the time sequences of the selected phase shifters, the DM symbols modulated upon multicarrier can be synthesized with suppressed mirror harmonic frequencies. It is shown that the proposed TMA DM transmitters here enjoy feeding network efficiency of 100%, and the transmit DM symbols can be synthesized at a pre-selected frequency only, significantly enhancing security performance. The effectiveness of the proposed scheme is validated via bit error rate (BER) simulations. Meanwhile, The TMA DM can also be used as a potential technique for the integrated sensing and communication (ISAC).
| Item Type: | Journal article |
|---|---|
| Publication Title: | IEEE Transactions on Vehicular Technology |
| Creators: | Huang, G., Chen, S., Ding, Y., Li, X., Nallanathan, A. and Mumtaz, S. |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| Date: | 15 August 2023 |
| ISSN: | 0018-9545 |
| Identifiers: | Number Type 10.1109/tvt.2023.3305301 DOI 1792342 Other |
| Rights: | © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| Divisions: | Schools > School of Science and Technology |
| Record created by: | Jeremy Silvester |
| Date Added: | 20 Oct 2023 08:52 |
| Last Modified: | 20 Oct 2023 08:52 |
| URI: | https://irep.ntu.ac.uk/id/eprint/50043 |
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