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.com
Volume 4, Issue 4 (Suppl)
J Laser Opt Photonics, an open access journal
ISSN: 2469-410X
Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8
th
International Conference and Exhibition on
Lasers, Optics & Photonics
AMAC layer protocol for a bandwidth scalable OFDMA PON architecture
Reginaldo Barbosa Nunes
Federal Institute of Espírito Santo, Brazil
T
he need for high bandwidth networks driven by new digital services and technologies has culminated in the emergence of the
new standards for passive optical networks (PONs) such as 10 Gigabit Capable PON (XGPON) recommended by the ITU-T
(International Telecommunications Union - Telecommunications) and 10 Gigabit Ethernet PON (10G EPON) standardized by the
IEEE (Institute of Electrical and Electronic Engineers), both provide rates up to 10 Gb/s per wavelength to the end user. More
recently, the ITUT standard NGPON2 started using TWDM technology that provides rates up to 40 Gb/s, but for that, it needs to
use four wavelengths. In this context, this we propose a PON architecture based on Orthogonal Frequency Division Multiple Access
(OFDMA), capable to offer an efficient bandwidth control with greater flexibility and granularity in bandwidth allocation to the end
users according their demand or required Quality of Service (QoS). The proposed architecture exploits the Orthogonal Frequency
Division Multiplexing (OFDM) to provide transmission rates above 33 Gb/s per wavelength. The proposal considers a tree topology
where each optical line terminal (OLT) is connected to at least one passive device splitter/combiner, provides multiple services for
up to 32 optical network units (ONUs). Our work presents experimental results that demonstrate the feasibility of this physical
infrastructure for passive optical network based on OFDM/OFDMA, suggests adaptations in the architecture and presents techniques
for improving the system spectral efficiency. In addition, it also describes the main recommendations to build a medium access layer
in accordance with this proposal, named BS OFDMA PON (Bandwidth Scalable OFDMA PON).
Biography
Reginaldo Barbosa Nunes has completed his PhD degree in Electrical Engineering from Federal University of Espírito Santo (2016), graduated in Electrical Engineering,
Master’s in Computer Science and Computer Network Specialist. He is working as a Professor of higher and technical education at the Federal Institute of Espírito Santo
from 1997. He has recently published more than 15 papers in reputed journals and international conferences, has been serving as reviewer member in several international
periodics.
regisbn@ifes.edu.brReginaldo Barbosa Nunes, J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017