Analytical modeling and impact analysis on multichannel symmetric optical and wireless NG-PON2 networks of CD, SPM, XPM and FWM impairments

Abstract

A conceptual model for optical wireless (OW) interfacing with NG-PON2 access network is analyzed using N1-class backbone optical distribution and OW free-space optics (FSO) channels in the frontend to connect ONUs to symmetric 1.25/2.5/10 Gbps channels incorporating Time and Wavelength Division Multiplexing (TWDM) technique to deliver applications and services based on Fiber-to-the-X (FTTX), IoT and 5 G technologies. We successfully demonstrated the design and analysis of ODN channel attributes supporting coexistence approach in contiguous with fiber channel linear and nonlinear impairments (LNI), and atmospheric attenuations β due to haze, dry particles inside the premises for high-speed OW channel for indoor applications along with optimization of hybrid N1-power budget class distributing configuration propagating multi-channel (MC) OW-FSO TWDM NG-PON2 configurations supporting symmetric configuration. Multichannel input power is calculated to optimize up/down link spectrum ODN power to 4 and 3 dBm respectively at worst-case scenario accommodating eight symmetric channels. Simulation results achieved at 50.011 km in either direction are − 41.85/− 36.67/− 39.04/ dBm and − 33.63/− 42.78/− 37.92 dBm receiver sensitivities supporting 448 splitter configuration at 50.011 km, FWM efficiency is 1.65e-52 and FWM component power at as low as − 53 to − 54 dB in conjunction with CD, SPM, XPM, and FWM LNI for spectrum in either directions.