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 language | English |
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Title of host publication | 2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2022 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 162-167 |
Number of pages | 6 |
Edition | 13th |
ISBN (Electronic) | 9781665410441 |
ISBN (Print) | 9781665410458 |
DOIs | |
Publication status | Published - Dec 2022 |
Event | 2022 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 2022 → 22 Jul 2022 Conference number: 13th https://csndsp2022.av.it.pt/ |
Conference
Conference | 2022 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) |
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Abbreviated title | CSNDSP 2022 |
Country/Territory | Portugal |
City | Porto |
Period | 20/07/22 → 22/07/22 |
Internet address |
Keywords
- Cellular networks
- NOMA
- Simulation
- Buildings
- Digital signal processing
- physical layer
- Artificial light
- VLC
- PLS
- ANS
- ASR
- FPA
- GRPA