Performance Analysis of Hybrid PON (WDM-TDM) with Equal and Unequal Channel Spacing

Abstract

In this hybrid WDM-TDM PON has been evaluated and compared the downstream wavelengths with equal and unequal channel spacing at 5 Gbit/s per wavelength in the scenario of triple play services with 128 optical network units (ONUs). The triple play services: data, voice and video signals are transmitted up to 50 km distance having Q factor of 6.68 and BER of 3.64e-012 with unequal channel spacing and 45 km distance having Q factor of 6.33 and BER of 2.40e-011 with equal channel spacing in downstream direction. It has been observed that downstream wavelengths with unequal channel spacing provide better results than equal channel spacing.

Impairment strained analytical modeling evaluation and cross-talk analysis of symmetric and coexistent channels for extended class-1 NG-PON2 access network

“…The linear and nonlinear impairments described by Eq. 7 such as GVD parameter β2 , Kerr parameter γ in the range of 7.98 × 10 –3 W −1 m −1 and 2.00 × 10 –2 W −1 m −1 respectively and estimated range of effective area Aeff of 123–49 μm 2 and 61–24 μm 2 for symmetric channel spectrum along with SPM and XPM non-linear impairments respectively (Singh and Singh 2018 ; Shrama et al 2016 ; Pagare et al 2021 ), resulted in FWM efficiency of 1.65 × 10 –52 . The magnitude of the FWM component estimated using Eq.…”

“…Flexibility in network expansions, coexistence feasibility with legacy access network like GPON and XG-PON enhancing PtM and PtP nodes leading to cost-effective expansion of access networks are the key features of TWDM technology. TWDM NG-PON2 access networks can deliver symmetric 1.25 to 10 Gbps line rate can be expanded seamlessly to support 80 Gbps aggregate line rate by incorporating an array of eight 10 Gbps symmetric line rate with equal and unequal channel spacing (Sharma et al 2016 ; Veen et al 2015 ; Jeff et al 2012 ; Goyal et al 2017 ; TUT-T G. 989.2 2019 ; Kumar and Jamal 2014 ).…”

450 Gbps Low-cost Intensity Modulation with Direct Detection (IM/DD) Wave Length Division Multiplexing (WDM-PON) for 5G Fronthaul

“…By using several wavelengths of fiber, WDM may support more users, hence increasing the capacity of the optical fiber network [6]. To enable future high bandwidth, residential and backup services, WDM-PON was developed in the late 1980s and is now suggested by many authors to be used as a solution that meets the required fronthaul link networks [7]. The authors in [8] investigates the applicability of WDM-PON for 5G wireless networks, emphasizing the importance of deployment scenarios.…”