Comparison of OFDMA and GFDMA for next-generation pons

This paper examines and compares the use of orthogonal frequency division multiple access (OFDMA) and generalized frequency division multiple access (GFDMA) multicarrier formats in next-generation passive optical networks (PONs) through experimentation and numerical simulations. It is demonstrated t...

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Published in:Journal of optical communications and networking 2017-12, Vol.9 (12), p.1064-1073
Main Authors: Saljoghei, Arsalan, Farhang, Arman, Browning, Colm, Perry, Philip, Marchetti, Nicola, Doyle, Linda E., Barry, Liam P.
Format: Article
Language:English
Subjects:
Bandwidths
Computer simulation
Experimentation
Filtering
Frequency division multiple access
GFDMA
Multiple access
OFDMA
PON
Multipoint distribution service
Next generation networking
OFDM
Optical communication
Optical network units
Orthogonal Frequency Division Multiplexing
Receivers
Subcarriers
Synchronism
Synchronization
Uplink
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cited_by cdi_FETCH-LOGICAL-c324t-ba49cfbb47ae34dafcd330f6a5bbdb7f47843a456fac86c2f2346dcb94123313
cites cdi_FETCH-LOGICAL-c324t-ba49cfbb47ae34dafcd330f6a5bbdb7f47843a456fac86c2f2346dcb94123313
container_end_page 1073
container_issue 12
container_start_page 1064
container_title Journal of optical communications and networking
container_volume 9
creator Saljoghei, Arsalan
Farhang, Arman
Browning, Colm
Perry, Philip
Marchetti, Nicola
Doyle, Linda E.
Barry, Liam P.
description This paper examines and compares the use of orthogonal frequency division multiple access (OFDMA) and generalized frequency division multiple access (GFDMA) multicarrier formats in next-generation passive optical networks (PONs) through experimentation and numerical simulations. It is demonstrated that GFDMA presents a high resilience toward multiple access interference (MAI) compared to OFDMA at the uplink channel of a PON. Moreover, two methods are proposed for achieving synchronization in the uplink channel of PONs, enabling high spectral efficiency. These proposed methods can lead to the elimination of inter-ONU guard bands, and facilitate overlapping inter-ONU subcarriers, while eliminating the effectsofMAI.Additionally,theperformanceofthesemulticarrier formats was analyzed in the downlink channel at a data rate of 15.6 Gb/s and a transmission span of 50 km where neglible performance penalty was observed.
doi_str_mv 10.1364/JOCN.9.001064
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source IEEE Xplore (Online service)
subjects Bandwidths
Computer simulation
Experimentation
Filtering
Frequency division multiple access
GFDMA
Multiple access
OFDMA
PON
Multipoint distribution service
Next generation networking
OFDM
Optical communication
Optical network units
Orthogonal Frequency Division Multiplexing
Receivers
Subcarriers
Synchronism
Synchronization
Uplink
title Comparison of OFDMA and GFDMA for next-generation pons
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