Saljoghei, Arsalan and Farhang, Arman and Browning, Colm and Perry, Philip and Marchetti, Nicola and Doyle, Linda E. and Barry, Liam P. (2017) Comparison of OFDMA and GFDMAfor Next-Generation PONs. Journal of Optical Communications and Networking, 9 (12). pp. 1064-1073. ISSN 1943-0620

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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 aPON. 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 multi-carrier 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

Item Type:	Article
Keywords:	GFDMA; Multiple access; OFDMA; PON;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering
Item ID:	11520
Identification Number:	https://doi.org/10.1364/JOCN.9.001064
Depositing User:	Arman Farhang
Date Deposited:	30 Oct 2019 14:06
Journal or Publication Title:	Journal of Optical Communications and Networking
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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