Frequency agile array based directional modulation

Yiwen Zhang; Yougen Xu

doi:10.1117/12.2682405

20 June 2023 Frequency agile array based directional modulation

Yiwen Zhang, Yougen Xu

Proceedings Volume 12715, Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023); 127152G (2023) https://doi.org/10.1117/12.2682405
Event: Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023), 2023, Dalian, China

Abstract

Directional modulation (DM) based on phased array (PA) can realize angle-dependent secure transmission. In this paper, frequency agile array (FAA) based DM technique is proposed to achieve range-angle-dependent secure transmission. Different from the conventional frequency diverse array (FDA), whose frequency offsets applied to the array is fixed, FAA can achieve a distortionless constellation at the target location and randomly distorted constellations at other locations by changing the frequency offsets at the symbol rate. Two frequency offset selection schemes are presented. The first scheme randomly selects the frequency offset applied to each element from a given set, and the received signal is randomly distorted both in amplitude and phase except the target location. The second scheme selects the optimal frequency offsets with lower sidelobe based on ant colony algorithm (ACO). Further, the sidelobe level is relaxed appropriately to seek multiple near optimal solutions on the basis of the optimal frequency offsets. The simulation results show that the proposed method generates higher bit error rate (BER) at non-target locations and narrower information beamwidth near the target location, which provides better secure transmission performance compared with the conventional FDA.

Citation Download Citation

Yiwen Zhang and Yougen Xu "Frequency agile array based directional modulation", Proc. SPIE 12715, Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023), 127152G (20 June 2023); https://doi.org/10.1117/12.2682405

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available