Izvorni znanstveni članak
https://doi.org/10.24138/jcomss.v14i4.525
Simulations of Grant Allocation in NG-PON2 Networks Using OPNET Modeler
Tomas Horvath
orcid.org/0000-0001-8659-8645
; Department of Telecommunication, Brno University of Technology, Technicka 12, Czech Republic
Patrik Cymorek
; Department of Telecommunication, Brno University of Technology, Technicka 12, Czech Republic
Petr Munster
; Department of Telecommunication, Brno University of Technology, Technicka 12, Czech Republic
Vaclav Oujezsky
orcid.org/0000-0001-7629-6299
; Department of Telecommunication, Brno University of Technology, Technicka 12, Czech Republic
Josef Vojtech
; Department of Telecommunication, Brno University of Technology, Technicka 12, Czech Republic
Sažetak
Passive optical networks are the most promising networks for the future. In 1998, the first standard of PONs was developed. Since that time, quality of optical transmissions and technologies has been massively improved and today's standards are capable of transferring an enormous amount of data. For example, NG-PON2 networks are able to transfer up to 40 Gbit/s, which means these networks provide subscribers with a symmetric bandwidth up to 10 Gbit/s using 4 different wavelengths. The higher transmission speeds are required, the more sophisticated bandwidth allocation reflecting requirements of each ONU in real-time is necessary. This article deals with implementation of NG-PON2 networks using OPNET Modeler and simulations of static and dynamic grants allocations. We also present a modification of dynamic bandwidth allocation for increasing the free bandwidth of idle ONU to heavily loaded ONU(s). We propose a simplified NG-PON2 network, for example, activation machine for ONUs is not implemented.
Ključne riječi
NG-PON2; OPNET Modeler; static grant allocation; dynamic grant allocation
Hrčak ID:
206300
URI
Datum izdavanja:
3.10.2018.
Posjeta: 904 *