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Performance Investigation of NRZ-DQPSK, CSRZ-DQPSK and MDRZ-DQPSK Modulation Techniques for 450 Channel UD-WDM System for Long Haul Communication

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Title Performance Investigation of NRZ-DQPSK, CSRZ-DQPSK and MDRZ-DQPSK Modulation Techniques for 450 Channel UD-WDM System for Long Haul Communication
 
Creator Rajeev
Kumar, Chakresh
 
Subject Attenuation
Crosstalk
Dispersion
Eye closure
Q-factor
 
Description 870-884
In this paper, we have designed a 450-channel Ultra Dense-Wavelength Division Multiplexing (UD-WDM) system with
a bit rate of 100 Gb/s per channel and channel spacing of 0.1 nm based on three spectral efficient advanced modulation
techniques named Non-Return-To-Zero Differential Quadrature Phase Shift Keying (NRZ-DQPSK), Carrier Suppressed
Return-To-Zero Differential Quadrature Phase Shift Keying (CSRZ-DQPSK), and Modified Duobinary Return-To-Zero
Differential Quadrature Phase Shift Keying (MDRZ-DQPSK). The performances of all three modulation techniques
mentioned above are investigated using various investigation parameters. We have also demonstrated the experimental setup
for measuring attenuation and dispersion under the effect of various linear and nonlinear impairments. Along with the
experimental setup, the simulation is performed using optisystem software and the simulation results indicated that the
MDRZ-DQPSK modulation technique outperformed the other two modulation techniques. The maximum Quality-Factor
(Q-factor) value of 11.3 dB and minimum Bit Error Rate (BER) value of 10−11, minimum eye closure value of 1.44 dB, and
minimum probability of error of 0.36 have been reported for MDRZ-DQPSK modulated system when varying distance has
been taken into consideration. The maximum receiver sensitivity of −16 dBm, minimum received crosstalk value of −8.8 dB
and maximum Q-factor value of 12.6 dB have been reported with varying numbers of channels. The maximum Q-factor of
13.6 dB, minimum BER value of 10−13, and maximum output power of −38 dBm have been reported with varying input
powers. The utilization of a large number of channels in this study enables unprecedented increases in data transmission
speeds that were previously unattainable.
 
Date 2023-08-09T04:19:44Z
2023-08-09T04:19:44Z
2023-08
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/62409
https://doi.org/10.56042/jsir.v82i08.1053
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source JSIR Vol.82(08) [August 2023]