Impact of fiber optic dispersion on the performance of OFDM-QAM system

Al-Khateeb, Khalid A. Saeed and Akhter, Fowzia and Islam, Md. Rafiqul (2010) Impact of fiber optic dispersion on the performance of OFDM-QAM system. In: International Conference on Computer and Communication Engineering, ICCCE'10, 11-13 May 2010, Kuala Lumpur, Malaysia.

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Abstract

The Performance of Orthogonal Frequency Division Multiplexing (OFDM) combined with Quadrature Amplitude Modulation (QAM) has been analyzed in presence of fiber optic dispersion. The influence of dispersion on the (OFDM) spectrum is investigated with fiber lengths, bit rates, no. of channels and source line widths. The inter-channel interference occurs due to dispersion-induced broadening of OFDM spectrum. The power penalty suffered by the system is evaluated at bit error rate, BER=10-9 for a single mode fiber operating at 1.55μm. The results obtained from the OFDM-QAM system demonstrate that the influence of dispersion is lower in OFDM-QAM spectrum in comparison with single bit transmission with same bandwidth and it is approximately two times less than that of a conventional system.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	3475/5650
Uncontrolled Keywords:	OFDM-QAM, Dispersion, BER performance
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Prof. Dr. Khalid A. S. Al-Khateeb
Date Deposited:	22 Oct 2011 09:22
Last Modified:	20 Jan 2012 09:19
URI:	http://irep.iium.edu.my/id/eprint/5650

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