Showing papers by "M. K. Lakshmanan published in 2023"
27 Jan 2023
TL;DR: In this article , the performance analysis of radio frequency/ free-space optical (RF/FSO) communication system based on the amplified and forward (AF) has been carried out and the analytical closed-form expression of outage probability for end-to-end average SNR has been derived where Nakagami-m distribution is used to model the RF link and FSO link assumed to follow the Fisher Snedecor (F) distribution.
Abstract: In this paper, performance analysis of radio frequency/ free-space optical (RF/FSO) communication system based on the amplified and forward (AF) has been carried out. The analytical closed-form expression of outage probability for end-to-end average signal to noise ratio (SNR) has been derived where Nakagami-m distribution is used to model the RF link and FSO link assumed to follow the Fisher Snedecor (F) distribution. The results are simulated on MATLAB software.
05 May 2023
TL;DR: In this paper , a dual-hop RF/FSO communication system is considered, where one hop is used as RF signal and another as an FSO channel, and the system's performance is analyzed in terms of Ergodic Capacity with different threshold SNR.
Abstract: Considering a Dual Hop RF/FSO communication system, one hop is used as RF Signal and another as an FSO channel. Our work uses Mixture Gamma Distribution to model the RF channel and a Double Generalized Gamma distribution to model the FSO channel. Also, as a special case, of Mixture Gamma, Rayleigh and Nakagami-m distribution is modelled at RF channel. Thereby, we perform mathematical and graphical analysis for different turbulence conditions. The system's performance is analyzed in terms of Ergodic Capacity with different threshold SNR. The simulation results show that Ergodic Capacity increases with an increase in average electrical SNR under other turbulence conditions.
05 May 2023
TL;DR: In this paper , a dual-hop RF/FSO communication system was investigated, which utilizes RF and FSO channels and employed a double generalized gamma distribution to represent the FSO channel and a Mixture Gamma distribution to simulate the RF channel.
Abstract: Our research investigates a Dual Hop RF/FSO communication system, which utilizes RF and FSO channels. We employ a Double Generalised Gamma distribution to represent the FSO channel and a Mixture Gamma distribution to simulate the RF channel. Also, we study the special cases of the Mixture Gamma Distribution, which includes Rayleigh and Nakagami-m distributions. The system's performance is examined mathematically and graphically under the effects of various turbulence conditions. First, we measure the system's Outage Capacity under various threshold SNR values. From the simulation results, raising the average electrical SNR reduces outage capacity under all turbulence situations. However, the system's outage performance also deteriorates when fading intensity rises from weak to moderate to high.