Considering of PAM-4, DB, NRZ and RZ for Implementation in Next-Generation PONs

2018 26th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2018): Proceedings 2018
Sandis Spolītis, Inna Kurbatska, Vjačeslavs Bobrovs

The exponential traffic growth in access networks is driving demand for the increasing of the per-wavelength data rates in the next generation passive optical networks (NG-PONs) [1]. Hence, the utilization of the advanced modulation formats instead of the traditional non-return-to-zero (NRZ) has to be considered [2]. In this paper, we evaluate NRZ, return-to-zero (RZ), duobinary (DB) and four-level pulse amplitude modulation (PAM-4) for utilization in 8-channel wavelength-division-multiplexing (WDM) PON with per-channel data rates of 10 Gbit/s, 25 Gbit/s and 40 Gbit/s without applying any amplification, dispersion compensation or digital signal processing. We compare the performance of the investigated modulation formats in terms of bit error rate (BER), received optical power and receiver bandwidth.

Keywords
NG-PON, signal modulation, PAM-4, duobinary, NRZ, RZ, bandwidth
DOI
10.23919/SOFTCOM.2018.8555736
Hyperlink
https://ieeexplore.ieee.org/document/8555736

Spolītis, S., Kurbatska, I., Bobrovs, V. Considering of PAM-4, DB, NRZ and RZ for Implementation in Next-Generation PONs. In: 2018 26th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2018): Proceedings, Croatia, Split, 13-15 September, 2018. Piscataway: IEEE, 2018, pp.70-75. ISBN 978-1-5386-6770-5. e-ISBN 978-9-5329-0087-3. Available from: doi:10.23919/SOFTCOM.2018.8555736

Publication language
English (en)