RT info:eu-repo/semantics/article
T1 Efficient T-CONT-Agnostic Bandwidth and Wavelength Allocation for NG-PON2
A1 Kourtessis, Pandelis
A1 Lim, Wansu
A1 Merayo Álvarez, Noemí
A1 Yang, Yeon-Mo
A1 Senior, John M.
K1 Dynamic bandwidth allocation
K1 Dynamic wavelength allocation
K1 Medium access control protocol
K1 NG-PON2
K1 Quality of service
K1 TWDM-PON
K1 1203.23 Lenguajes de Programación
AB Dynamic bandwidth and wavelength allocation are used to demonstrate high quality of service (QoS) in time wavelength-division multiplexed–passive optical networks (TWDM-PONs). Both bandwidth and wavelength assignment are performed on the basis of transmission containers (T-CONTs) and therefore by means of upstream service priority traffic flows. Our medium access control (MAC) protocol therefore ensures consistency in processing alike classes of service across all optical network units (ONUs) in agreement with their QoS figures. For evaluation of the MAC protocol performance, a simulator has been implemented in OPNET featuring a 40 km, 40 Gbps TWDM-PON with four stacked wavelengths at 10 Gbps each and 256 ONUs. Simulation results have confirmed the efficiency of allocating bandwidth to each wavelength and the significant increase of network traffic flow due to adaptive polling from 9.04 to 9.74 Gbps. The benefit of T-CONT-centric allocation has also been measured with respect to packet delay and queue occupancy, achieving low packet delay across all T-CONTs. Therefore, improved NG-PON2 performance and greater efficiency are obtained in this first demonstration of T-CONTs allocated to both wavelength and time
PB Optica Publishing Group
SN 1943-0620
YR 2019
FD 2019-07-01
LK https://uvadoc.uva.es/handle/10324/63859
UL https://uvadoc.uva.es/handle/10324/63859
LA eng
NO Journal of Optical Communications and Networking, Julio 2019, vol. 11, n. 7, p. 383-396
NO Producción Científica
DS UVaDOC
RD 27-dic-2024