| Title | Investigation of MDRZ and DPSK modulation schemes employed in DWDM systems for smart city 5G access networks |
|---|---|
| ID_Doc | 42291 |
| Authors | Lubana, A; Kaur, S |
| Title | Investigation of MDRZ and DPSK modulation schemes employed in DWDM systems for smart city 5G access networks |
| Year | 2024 |
| Published | Journal Of Nonlinear Optical Physics & Materials, 33, 04 |
| Abstract | Wavelength division multiplexing (WDM) is one of the emerging technologies for data transmission in 5G access network assembly between the antenna unit (AU) and the distribution unit (DU). Here, in this work, we evaluate and analyze a dense wavelength division multiplexing (DWDM) - passive optical networks (PONs) employing erbium-ytterbium-doped fiber amplifier (EYDFA) + Raman hybrid optical amplifier (HOA) using two modulation schemes - modified duobinary return to zero (MDRZ) and differential phase shift keying (DPSK) for alternate channels, where the channel count has been varied from 8 to 40. The system has been analyzed over the wavelength span of 1550-1558.8nm with a channel spacing, input power and data rate of 25GHz, 0dB and 40Gb/s, respectively. An average gain, gain ripple and optical signal-to-noise ratio (OSNR) of 20.87, 0.95 and 30dB, respectively have been observed in the case of HOA along with the achievement of Q-factor of up to 9 at the receiving end of the system. The DPSK-modulated channels result in higher values of gain and OSNR along with lower gain ripple as compared to MDRZ channels making the proposed system a good option for 5G access network applications. |
No similar articles found.