Security performance analysis of symmetric 112.5 Gbps coexistence 50G-PON, XGS-PON and GPON architecture based on Blowfish group cipher

Abstract One point to another topology and passive optical networks (PONs), this investigation analyzes the difficulties of concurrently operating legacy, future network techniques, and protection-related. We examine the issues of coexistence for a variety of user kinds, such mobile, internet of things (IoT) and home users. Future networks for access will need to simultaneously handle multiple technologies. To address this problem, our paper shows how triple coexistence multi-PON modules can be used by higher-speed PON systems operating at 50 Gbps line rate (50G-PON), 10-Gigabit- symmetric capable PON (XGS-PON), and gigabit passive optical network (GPON) to coexist on identical optical distribution network for the deployment of fiber-to-the-X (FTTX) networks. This work offers a new high speed for transmission of grayscale image above bidirectional fiber. Four different grayscale images are broadcast simultaneously at 2*50 Gbps for 50G-PON, 10 Gbps for XGS-PON and GPON is 2.5 Gbps for an overall capacity of symmetric 112.5 Gbps. Simulation research appears to indicate that, a bidirectional link with splitting ratio of 1:128 can be effectively carried out at 40 km. The receiver sensitivity both upstream and downstream showed is −27.3, −28, −29.6 dBm and −28.8, −26, −32.3 dBm for 50G-PON, XGS-PON and GPON, respectively. High security and capacity that delivers the requirements for access network reach in future cities and enhances the authenticity network’s reliability.