Advanced Search

Show simple item record

dc.contributor.authorYeşilkaya, Anıl
dc.contributor.authorÇoğalan, Tezcan
dc.contributor.authorErküçük, Serhat
dc.contributor.authorŞadi, Yalçın
dc.contributor.authorPanayırcı, Erdal
dc.contributor.authorHaas, Harald
dc.contributor.authorPoor, Harold Vincent
dc.description.abstractOptical wireless communications (OWC) and its potential to solve physical layer security (PLS) issues are becoming important research areas in 6G communications systems. In this paper, an overview of PLS in visible light communications (VLC), is presented. Then, two new PLS techniques based on generalized space shift keying (GSSK) modulation with spatial constellation design (SCD) and non-orthogonal multiple access (NOMA) cooperative relaying are introduced. In the first technique, the PLS of the system is enhanced by the appropriate selection of a precoding matrix for randomly activated light emitting diodes (LEDs). With the aid of a legitimate user's (Bob's) channel state information (CSI) at the transmitter (CSIT), the bit error ratio (BER) of Bob is minimized while the BER performance of the potential eavesdroppers (Eves) is significantly degraded. In the second technique, superposition coding with uniform signaling is used at the transmitter and relays. The design of secure beamforming vectors at the relay nodes along with NOMA techniques is used to enhance PLS in a VLC system. Insights gained from the improved security levels of the proposed techniques are used to discuss how PLS can be further improved in future generation communication systems by using VLC.en_US
dc.description.sponsorshipWolfson Foundation Engineering and Physical Sciences Research Council Türkiye Bilimsel ve Teknolojik Araştirma Kurumu King Abdullah University of Science and Technology Royal Societyen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.subjectGeneralized space shift keying (GSSK)en_US
dc.subjectNon-orthogonal multiple access (NOMA)en_US
dc.subjectPhysical-layer securityen_US
dc.subjectVisible light communications (VLC)en_US
dc.titlePhysical-layer security in visible light communicationsen_US
dc.relation.journal2nd 6G Wireless Summit 2020: Gain Edge for the 6G Era, 6G SUMMIT 2020en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.institutionauthorŞadi, Yalçınen_US
dc.institutionauthorErküçük, Serhaten_US
dc.institutionauthorPanayırcı, Erdalen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record