Design and Simulation of Fiber Wireless Communication Network

Dhafer Sabah  Yaseen; Fahad  Ayad Khaleel Albazaz; Omar S.  Almolaa

Dhafer Sabah Yaseen Department of Computer science, University of AL-Hamdaniya, Ninevah, Iraq
Fahad Ayad Khaleel Albazaz Directorate of Education in Ninevah, Mosul, Iraq
Omar S. Almolaa College of Basic Education, University of Telafer, Iraq

Keywords: Optical fiber, wireless networks, R&F design, Radio and Fiber (R&F), MZM (Mach Zehnder Modulator)

Abstract

The exponential growth of mobile data demand and the need for high-capacity backhaul networks have led to the integration of optical and wireless technologies. Existing passive optical networks (PONs) offer high-speed connectivity, yet limitations remain in addressing increased data rates and dense small-cell deployments in 4G, 4.5G, and emerging 5G networks. Despite advancements in radio-over-fiber (RoF) and WDM-PON architectures, comprehensive simulation-based evaluations of their joint performance for large-scale deployments are limited. This study aims to design and simulate a WDM-PON based Radio and Fiber (R&F) communication system using 16 wavelengths to assess its feasibility in supporting dense cell site architectures and reliable transmission. Simulation results reveal that a 10 Gbps per wavelength configuration over 20 km can support 32,768 base stations with a cell radius of ~110 m, while 40 Gbps configurations over 1 km achieve a 1:65536 splitting ratio. The RoF system optimized at 24 dBm RF input provides maximum Q-factor (26) and highest receiver sensitivity (–30 dBm) over 5 km fiber. The integration of R&F and RoF architectures using WDM-PON is simulated with varying input RF power, frequency bands, and fiber lengths to determine optimal configurations for reliable, scalable communication. The findings demonstrate the viability of WDM-PON based R&F networks for next-generation mobile backhaul, offering a scalable solution with high data rates, extended reach, and optimized performance suitable for dense, low-latency wireless access environments.

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