Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Pham Thanh, V."'
This paper proposes a joint design of probabilistic constellation shaping (PCS) and precoding to enhance the sum-rate performance of multi-user visible light communications (VLC) broadcast channels subject to signal amplitude constraint. In the propo
Externí odkaz:
http://arxiv.org/abs/2408.02990
Autor:
Pham, Thanh V., Ishihara, Susumu
This paper studies a practical design of probabilistic constellation shaping (PCS) for physical layer security in visible light communications (VLC). In particular, we consider a wiretap VLC channel employing a probabilistically shaped $M$-ary pulse
Externí odkaz:
http://arxiv.org/abs/2408.02982
Free-space optics (FSO)-based satellite communication systems have recently received considerable attention due to their enhanced capacity compared to their radio frequency (RF) counterparts. This paper analyzes the performance of physical layer secu
Externí odkaz:
http://arxiv.org/abs/2402.13554
There has been an increasing interest in physical layer security (PLS), which, compared with conventional cryptography, offers a unique approach to guaranteeing information confidentiality against eavesdroppers. In this paper, we study a joint design
Externí odkaz:
http://arxiv.org/abs/2402.13549
This paper studies energy-efficient precoding designs for multi-user visible light communication (VLC) systems from the perspective of physical layer security where users' messages must be kept mutually confidential. For such systems, we first derive
Externí odkaz:
http://arxiv.org/abs/2309.15483
This paper studies the design of energy-efficient artificial noise (AN) schemes in the context of physical layer security in visible light communications (VLC). Two different transmission schemes termed $\textit{selective AN-aided single-input single
Externí odkaz:
http://arxiv.org/abs/2309.14636
Though visible light communication (VLC) systems are contained to a given room, improving their security is an important criterion in any practical deployment. In this paper, the design of artificial noise (AN) to enhance physical layer security in V
Externí odkaz:
http://arxiv.org/abs/2302.11125
Though visible light communication (VLC) systems are contained to a given room, ensuring their security amongst users in a room is essential. In this paper, the design of artificial noise (AN) to enhance physical layer security in VLC systems is stud
Externí odkaz:
http://arxiv.org/abs/2210.00438
In this paper, an energy-efficient precoding scheme is designed for multi-user visible light communication (VLC) systems in the context of physical layer security, where users' messages are kept mutually confidential. The design problem is shown to b
Externí odkaz:
http://arxiv.org/abs/2102.10822
In this paper, we newly present a closed-form bit-error rate (BER) expression for an $M$-ary pulse-amplitude modulation ($M$-PAM) over additive white Gaussian noise (AWGN) channels by analytically characterizing the bit decision regions and positions
Externí odkaz:
http://arxiv.org/abs/2012.03422