Computer Sciences and Information Technology
Title : | Physical Layer Security Analysis of FSO Communication Systems over Arbitrarily Correlated Channels |
Area of research : | Computer Sciences and Information Technology |
Focus area : | Telecommunications |
Principal Investigator : | Dr. Aashish Mathur, Indian Institute Of Technology (IIT) Jodhpur, Rajasthan |
Timeline Start Year : | 2024 |
Timeline End Year : | 2027 |
Contact info : | aashishmathur@iitj.ac.in |
Details
Executive Summary : | Physical layer security (PLS) has recently attracted significant attention of researchers to complement to the conventional encryption techniques to improve the secrecy performance of free-space optical (FSO) communication systems. The secrecy performance of FSO communication systems is significantly affected by the atmospheric turbulence, boresight pointing errors and fog. In many works in literature on FSO secrecy evaluation, the main channel and eavesdropper channel are assumed to be independent while in others, the impact of boresight pointing errors (PEs) and random fog is not taken into consideration. A comprehensive secrecy performance evaluation of FSO systems under the combined influence of generalized turbulence, boresight PEs and random fog is not present in literature. It has been shown in literature that differential chaos shift keying (DCSK) modulation can be used to enhance the secrecy performance of communication systems. It would be interesting to apply DCSK scheme to improve the security of FSO communication systems. In this project, we aim to analyze the PLS performance of FSO communication systems utilizing DCSK modulation when the main channel and eavesdropper channel are correlated. The correlation between the main channel and eavesdropper channel is modelled using Farlie-Gumbel-Morgenstern (FGM) Copula. The secrecy analysis will take into consideration the combined influence of generalized Malaga distributed turbulence, boresight pointing errors (PEs), and the random fog on both the channels. The PLS will be analyzed comprehensively in terms of different secrecy performance metrics such as average secrecy capacity (ASC), secure outage probability (SOP), and probability of non-zero secrecy capacity (PNZSC). |
Total Budget (INR): | 6,60,000 |
Organizations involved