Preprint Article Version 1 This version is not peer-reviewed

Directional Modulation Technique Using a Polarization Sensitive Array for Physical Layer Security Enhancement

Version 1 : Received: 30 October 2019 / Approved: 31 October 2019 / Online: 31 October 2019 (09:41:42 CET)

How to cite: Zhang, W.; Li, B.; Le, M.; Wang, J.; Peng, J. Directional Modulation Technique Using a Polarization Sensitive Array for Physical Layer Security Enhancement. Preprints 2019, 2019100368 (doi: 10.20944/preprints201910.0368.v1). Zhang, W.; Li, B.; Le, M.; Wang, J.; Peng, J. Directional Modulation Technique Using a Polarization Sensitive Array for Physical Layer Security Enhancement. Preprints 2019, 2019100368 (doi: 10.20944/preprints201910.0368.v1).

Abstract

Directional modulation (DM), as an emerging promising physical layer security (PLS) technique at the transmitter side with the help of an antenna array, has developed rapidly over decades. In this study, a DM technique using a polarization sensitive array (PSA) to produce the modulation with different polarization states (PSs) at different directions is investigated. PSA can be employed for more effective DM for an additional degree of freedom provided in the polarization domain. The polarization information can be exploited to transmit different data streams simultaneously at the same directions, same frequency, but with fixed different PSs in the desired directions to increase the channel capacity, and with random PSs off the desired directions to enhance PLS. The proposed method has the capability of concurrently projecting independent signals into different specified spatial directions while simultaneously distorting signal constellation in all other directions. Mathematical analysis and design examples for single-beam and multi-beam DM systems are presented. Simulation results demonstrate that the proposed method is more effective for PLS and the channel capacity is significantly improved compared with conventional antenna arrays.

Subject Areas

directional modulation; physical layer security; polarization sensitive array; polarization state.

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.