Secrecy Performance Improvement of a NOMA VLC Cellular Network With Artificial Noise

Fatemeh Bahadori, Seyed Mohammad Sajad Sadough, Zabih Ghassemlooy

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)
46 Downloads (Pure)

Abstract

In this paper, we investigate the physical layer secrecy of a non-orthogonal multip le access (NOMA) VLC cellular network, where all users are moving based on the random waypoint mobility model. To improve the secrecy performan ce of the proposed network, we consider the artificial light induced noise with the aim of disrupting the eavesdropper. More precisely, by considering the dynamic behavior of the network, we formulate the achievable secrecy rate of the legitimate users. To allocate power to legitimate users, we modify two well-known fixed power allocation and the gain ratio power allocation methods to improve the network sum secrecy rate. The num erical results indicate that the secrecy performance of the network is improved at least 2dBs by employing the modified power allocation methods plus the artificial noise compared with the case of using the conventional version of the power allocation methods, which this value scales for higher tran smit p owers. F urtherm ore, the effect of half-power angle of the optical transmitter is considered with simulation results showing an optimum value for the half-p ower angle, which can vary depending on the considered scenario.

Original languageEnglish
Title of host publication2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages162-167
Number of pages6
Edition13th
ISBN (Electronic)9781665410441
ISBN (Print)9781665410458
DOIs
Publication statusPublished - Dec 2022
Event2022 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) - Dr. António Cupertino de Miranda Centro de Congressos, Porto, Portugal
Duration: 20 Jul 202222 Jul 2022
Conference number: 13th
https://csndsp2022.av.it.pt/

Conference

Conference2022 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)
Abbreviated titleCSNDSP 2022
Country/TerritoryPortugal
CityPorto
Period20/07/2222/07/22
Internet address

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