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Open AccessArticle

Spatial Modulation and MP-WFRFT-Aided Multi-Beam Wireless Communication Scheme Based On Random Frequency Diverse Array

by Jianbang Gao 1,*, Bin Qiu 2 and Jing Zhou 1
1
School of Electronic Engineering, Xi’an Shiyou University, Xi’an 710000, China
2
School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(18), 5289; https://doi.org/10.3390/s20185289
Received: 22 July 2020 / Revised: 10 September 2020 / Accepted: 12 September 2020 / Published: 16 September 2020
(This article belongs to the Section Communications)
A security-enhanced, spectral-efficient, and power-efficient multi-beam wireless communication scheme based on random frequency diverse array (RFDA) is proposed in this paper. (AN)-aided directional modulation (DM) schemes. Furthermore, with the aid of spatial modulation (SM) technology and cooperative legitimate users (LUs), we can transmit more information bits by the use of LU number informations than the single modulation symbols. Unlike conventional zero-forcing (ZF) beamforming for multi-beam DM, we design a FDA beamforming vector for each LU based on the minimum transmit power method. Numerical simulations show that (1) the proposed scheme is power-efficient compared to the conventional schemes, (2) the proposed scheme can transmit more information bits than the conventional schemes, and (3) the proposed scheme can ensure communication security when eavesdroppers (Eves) are proximal to LUs or even in same locations. View Full-Text
Keywords: physical layer security; spatial modulation; MP-WFRFT; cooperative LUs; power efficient physical layer security; spatial modulation; MP-WFRFT; cooperative LUs; power efficient
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Gao, J.; Qiu, B.; Zhou, J. Spatial Modulation and MP-WFRFT-Aided Multi-Beam Wireless Communication Scheme Based On Random Frequency Diverse Array. Sensors 2020, 20, 5289.

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