Ocdma [6,8,9,10] have been reported, this thesis is limited to the asynchronous case spread spectrum cdma allows asynchronous multiple access to a local area network (lan) with no waiting the additional bandwidth required by spread spectrum can be accommodated by using a fiber-optic channel and incoherent. Access (sac-ocdma) system performance is investigated both in free space optics (fso) and optical fiber amplitude coding-optical code division multiple access (sac-ocdma) & salwa mostafa moreover his scientific phd thesis has focused on recent applications in linear or nonlinear passive. This thesis is elaborated in communication networks and security research lab cnas, sup'com several people gave me support to achieve this thesis and i would like to use this oppor- tunity to thank them switching and optical code division multiple access (ocdma) multiplexing technology. Data and by the jammer to disrupt communication therefore, the main focus of this thesis is to increase optical layer security in ocdma network by providing data confidentiality against eavesdropping and signal availability against jamming firstly, the security issue of confidentiality enhancement against eavesdropping in.
Abstract this thesis presents the effect of dispersion and multi access interference (mai) of opti- cal fiber on the bit error rate (ber) performance of a direct sequence optical code division multiple access (ds-ocdma) network by means of intensity modulation and optical receiver correlators by using matlab simulations. Prime code family for ocdma systems, that has the capability to accommodate different pon split ratios and with characteristics that improve transmission system performance when compared to existing prime code families the novel code presented in this thesis is identified as the extended grouped new. Design of graphical user interface for multiuser sac-ocdma performance analysis abdlkarem, najla h (2015) design of graphical user interface for multiuser sac-ocdma performance analysis masters thesis, universiti tun hussein onn malaysia.
In this thesis, the study on ocdma is based on a conference paper that is mainly demonstrating an experiment on optical spectral-amplitude code (sac) ocdma structured with circulator free fiber bragg gratings array it demonstrates a three-user sac-ocdma with the walsh hadamard code, by describing every detail. Education: phd, interdisciplinary in electrical engineering and telecommunications networking, october 2002 university of missouri, kansas city, mo thesis topic: skylight switch: new multicast wdm access switch architecture using photonic fast frequency-hopping ocdma technique phd, opto-electronic.
10 11 utilizing programmable spectral phase encoding, an ultrasensitive ( 200 fj/ b) periodically poled lithium-niobate-waveguide nonlinear waveform discrimi- nator and 10g ethernet receiver a comprehensive description of this ultra-short- pulse spectral phase-coded ocdma system is presented on the subsystem level,. Dw-zcc code based on sac–ocdma deploying multi-wavelength laser source for wireless optical networks, springer, 2017 4 performance evaluation of sac- ocdma system in free space optics and optical fiber system based on different types of codes, springer, 2017 for more information.
(ds-ocdma) encoder/decoder based on sampled fiber bragg gratings (s-fbgs) is characterized using phase-sensitive multiple access (ocdma), optical low- coherence reflectometry (olcr) i introduction multiple-access more than 40 phd degree thesis dr gallion is a member of the optical society of. Thesis : a new flexible cross correlation (fcc) code for optical cdma systems graduation date : 16 july 2014 university : universiti malaysia perlis (unimap) level : master of science (communication engineering) field of research : optical communications and ocdma systems thesis : development of a. University of vaasa faculty of technology telecommunication engineering tayyab masood khattak power control in optical cdma master's thesis for the degree of master of science in technology submitted for inspection in vaasa, 12 th of may, 2011 supervisor dsc (tech) muhammad.
Chapter 1 optical cdma in algainas/inp: introduction this thesis presents a practical research study of optical code division multiple access (ocdma) systems integrated in the algainas/inp semiconductor material system the aim of the research was to design and develop specified ocdma systems on a single chip and. Marketing plan template free word excel pdf format diythemes phd thesis phishing dissertation assignment thesis essay proofreading research assignmentdue shirts at bewilddetails buyable essays of dissertation writing consulting optical cdma ms thesis presentation ppt optical code division sample of a. (15) gil paryanti, optical cdma code optimization for maximal channel capacity joint supervision with prof lyandress (20) omri levy, ”ocdma fp+ase laser source” – final grade: 94 (3) dr g kats, electrical signal processing for optical impairments in optical communication systems, thesis accomplished, 2007.
In this paper, the performance of free space optical (fso) communication system employing the spec- tral amplitude coding optical code division multiple access ( sac ocdma) technique is presented sac ocdma is one of the multiplexing schemes that have become a research area of interest in optical com- munication. Bronze medal recipient, mte, 2015, kuala lumpur, for “ocdma system using modified double weight (mdw) code for automotive applications utilizing fpga platform” 4 e professional qualifications participate in proquest dissertations & theses global : a vast repository of phd and master's. A thesis submitted for the degree of doctor of philosophy in this thesis presents extensive research on optical ofdm and how it is being ocdma - optical code division multiple access ofdm - orthogonal frequency division multiplexing ofdma - orthogonal frequency division multiple. Title of thesis titre de la thèse broadband optical wireless communications for the teleoperation of mining equipment name of candidate nom du candidat frutuoso barroso ocdma systems using polsk modulation over a free-space optical turbulence channel electronics 4, 4 (2015).