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dc.contributor.authorHilal Adnan, Fadhil
dc.contributor.authorSyed Alwee Aljunid, Syed Junid
dc.contributor.authorR. Badlishah, Ahmad
dc.date.accessioned2009-11-19T14:00:17Z
dc.date.available2009-11-19T14:00:17Z
dc.date.issued2008
dc.identifier.citationp.1-6en_US
dc.identifier.urihttp://ieeexplore.ieee.org/xpls/abs_all.jsp?=&arnumber=4786638
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/7352
dc.descriptionLink to publisher's homepage at http://ieeexplore.ieee.orgen_US
dc.description.abstractA new code structure for spectral amplitude coding in optical code division multiple access (OCDMA) systems called Random Diagonal (RD) code is proposed. RD code is constructed using code level and data level. One of the important properties of this code is that the cross correlation at data segment is always zero, which means that Phase Intensity Induced Noise (PIIN) is reduced. It has been observed through theoretical analysis and experimental simulation that RD code performs significantly better performance than Hadamard and modified frequency-hopping (MFH) codes. In this study, point-to-point power limited transmission (laser source with maximum input power=0 dBm) with three RD-encoded channels are tested at the bit rate of 10 Gbit/s per channel. Results show that the uses of optical amplifiers are necessary to improve system performance by increasing transmitted power. To achieve practically desirable (high) spectral efficiencies, Erbium-doped fibre amplifier (EDFA) is used for simulating system performance. It has been shown that by using this type of amplifier, the transmission distance is greatly improved. Transmission of 10 Gb/s with a power limit of 0 dBm laser source is made feasible over a total reach of 30 km for 3 channels by the use of pumped EDFA.en_US
dc.language.isoenen_US
dc.publisherInstitute of Electrical and Electronics Engineering (IEEE)en_US
dc.relation.ispartofseriesInternational Conference on Electronic Design (ICED 2008)en_US
dc.subjectCode division multiple accessen_US
dc.subjectErbiumen_US
dc.subjectOptical fibre amplifiersen_US
dc.subjectHadamard codesen_US
dc.subjectWireless communication systemsen_US
dc.subjectTelecommunicationsen_US
dc.titlePower-limited spectral amplitude coding OCDMA system using random diagonal code with and without optical amplifiersen_US
dc.typeWorking Paperen_US


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