Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing

Jarajreh, Mutsam Abdel-karim, Ghassemlooy, Zabih and Ng, Wai Pang (2010) Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing. IET Microwaves, Antennas & Propagation, 4 (5). pp. 651-658. ISSN 1751-8725

[img]
Preview
PDF (Article)
Jarajreh, Ghassemlooy, Ng -Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical....article.pdf

Download (309kB) | Preview
Official URL: http://dx.doi.org/10.1049/iet-map.2009.0280

Abstract

Numerical simulations of the coherent optical orthogonal frequency division multiplexing modems are undertaken to investigate the effect of the adaptive modulation, the number of sub-carriers, the cyclic prefix (CP) length, the clipping ratio, quantisation bit resolution and the sampling speed of analogue-to-digital converters (ADCs) on the chromatic dispersion (CD) of a single mode fibre (SMF) at data rates up to 80 Gbps. The use of a large number of sub-carriers is more effective in combating fibre dispersion than employing a long CP; moreover, the optimum number of sub-carriers in the presence of both SMF non-linearities and CD has been identified. The authors show that using a high bit resolution ADC with a high clipping ratio, the transmission distance can be increased at specific data rates. Furthermore, it is shown that ADCs with a low sampling speed also improve the system tolerance to the fibre CD. In addition, simulation results show that the use of adaptive modulation schemes improves spectrum usage efficiency, thus resulting in higher tolerance to the CD when compared with the case in which identical modulation formats are adopted across all sub-carriers.

Item Type: Article
Uncontrolled Keywords: cyclic prefix length, clipping ratio, quantisation bit resolution, sampling speed, analogue-to-digital converters, chromatic dispersion, single mode fibre, SMF
Subjects: H600 Electronic and Electrical Engineering
H900 Others in Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: EPrint Services
Date Deposited: 11 Dec 2009 15:23
Last Modified: 10 May 2017 00:52
URI: http://nrl.northumbria.ac.uk/id/eprint/410

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence