Design and Analysis of Hybrid Optical-Wireless Communication Systems for Ultra-High-Speed Networks
https://doi.org/10.5281/zenodo.18450240
Keywords:
Hybrid Communication Systems, Optical Fiber, Millimeter-Wave, Free-Space Optics, Ultra-High-Speed Networks, Machine Learning Routing, Ber, Latency Optimization, 6g Readiness, Smart Networks.Abstract
Background: The explosion of data-intensive services and the need for ultra-reliable low latency communication are stretching the capabilities of traditional network infrastructures to the limit. Fiber networks can provide high capacity at a high reliability but wireless systems, such as millimeter-wave (mmWave) or free-space optical (FSO) communication systems, provide flexibility and scalability. But each of them has several weaknesses to ensure the same performance under different environmental and traffic conditions. Hybrid optical wireless networks can also be considered as a promising solution to accommodate the strengths in optical and wireless networks and thus provides an ultra-high speed, resilient and energy efficient generic network.
Aim: The objective of the current study was to develop and investigate a hybrid communication system model combining optical fiber, FSO, and mmWave links in order to evaluate important performance metrics such as throughput, delay, energy efficiency, BER, and link availability.
Method: MATLAB Simulink and NS-3 platforms were used along with a small-scale experimental setup-based approach. The Reinforcement-learning-based Dynamic Routing was used in the system to choose optimal links and regulate traffic in various network and environmental scenarios.
Results: Hybrid setting (fiber + FSO + mmWave) was capable of impressive throughput of up to 96.1 Gbps and latency < 7.1 ms even with bad weather. It also was demonstrated that the BER of control messages grew low with increase of modulation level, and the energy consumption of single control message was less than 1% of LTE control message in EEE, be sides, with the employment of adaptive algorithm, almost no data packet loss could be observed during the simulation.
Conclusion: These results demonstrate that hybrid optical-wireless systems can serve as a potential fundamental infrastructure for 6G communications and will be well suited for smart cities.
