Comparison of OFDMA and GFDMA for Next-Generation PONs

Arsalan Saljoghei; Arman Farhang; Colm Browning; Philip Perry; Nicola Marchetti; Linda E. Doyle; Liam P. Barry

doi:10.1364/JOCN.9.001064

Comparison of OFDMA and GFDMA for Next-Generation PONs

Arsalan Saljoghei, Arman Farhang, Colm Browning, Philip Perry, Nicola Marchetti, Linda E. Doyle, Liam P. Barry

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

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 effects of MAI. Additionally, the performance of these multicarrier 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.

Original language	English
Pages (from-to)	1064-1073
Journal	JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
Volume	9
Issue number	12
DOIs	https://doi.org/10.1364/JOCN.9.001064
Publication status	Published (in print/issue) - 3 Nov 2017

Keywords

GFDMA
Multiple access
OFDMA
PON

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10.1364/JOCN.9.001064

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title = "Comparison of OFDMA and GFDMA for Next-Generation PONs",

abstract = "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 effects of MAI. Additionally, the performance of these multicarrier 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.",

keywords = "GFDMA, Multiple access, OFDMA, PON",

author = "Arsalan Saljoghei and Arman Farhang and Colm Browning and Philip Perry and Nicola Marchetti and Doyle, {Linda E.} and Barry, {Liam P.}",

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T1 - Comparison of OFDMA and GFDMA for Next-Generation PONs

AU - Saljoghei, Arsalan

AU - Farhang, Arman

AU - Browning, Colm

AU - Perry, Philip

AU - Marchetti, Nicola

AU - Doyle, Linda E.

AU - Barry, Liam P.

PY - 2017/11/3

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N2 - 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 effects of MAI. Additionally, the performance of these multicarrier 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.

AB - 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 effects of MAI. Additionally, the performance of these multicarrier 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.

KW - GFDMA

KW - Multiple access

KW - OFDMA

KW - PON

U2 - 10.1364/JOCN.9.001064

DO - 10.1364/JOCN.9.001064

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IS - 12

ER -

Comparison of OFDMA and GFDMA for Next-Generation PONs

Abstract

Keywords

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