With the assistance of singular value decomposition (SVD), a multi-beam directional modulation (DM) scheme based on symmetrical multi-carrier frequency diverse array (FDA) is proposed. The proposed DM scheme is capable of achieving range-angle dependent physical layer secure (PLS) transmissions in free space with much lower complexity than the conventional zero-forcing (ZF) method. Theoretical and simulated results about secrecy rate and complexity verify the improved computational efficiency and considerable memory savings despite a very small penalty of secrecy rate.
@article{arxiv.1907.11972,
title = {SVD-Aided Multi-Beam Directional Modulation Scheme Based on Frequency Diverse Array},
author = {Qian Cheng and Vincent Fusco and Jiang Zhu and Shilian Wang and Chao Gu},
journal= {arXiv preprint arXiv:1907.11972},
year = {2019}
}