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dc.contributor.authorS. M. A., Aljunid
dc.contributor.authorM. A., Anuar
dc.contributor.authorA. A. M., Ismail
dc.contributor.authorND., Keraf
dc.contributor.authorR., Matem
dc.contributor.authorCBM., Rashidi
dc.contributor.authorN., Ali
dc.contributor.authorM. S., Amirul
dc.contributor.authorR., Endut
dc.contributor.authorN. A. M. A., Hambali
dc.contributor.authorS. A., Aljunid
dc.date.accessioned2022-05-13T08:35:14Z
dc.date.available2022-05-13T08:35:14Z
dc.date.issued2021-12
dc.identifier.citationInternational Journal of Nanoelectronics and Materials, vol.14 (Special Issue), 2021, pages 175-182en_US
dc.identifier.issn1985-5761 (Printed)
dc.identifier.issn1997-4434 (Online)
dc.identifier.urihttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/75227
dc.descriptionLink to publisher's homepage at http://ijneam.unimap.edu.myen_US
dc.description.abstractFuture telecommunication systems and networks are expected to provide a variety of integrated broadband services to the customers. There has been a tremendous interest in applying Code Division Multiple Access (CDMA) techniques to fiber optic communication systems. This technique is one of the multiple access schemes that is becoming popular because of the flexibility in the allocation of channels, ability to operate asynchronously, enhanced privacy and increased capacity in bursty networks. This project is focusing on designing 2D OCDMA system with the hardware implementation of design using FPGA. The coding techniques in OCDMA are time versus wavelength and amplitude versus phase. 2D OCDMA coding incorporates both wavelength selection and time distribution. The data bit would be encoded as consecutive chips with various wavelengths. The code architecture seeks to produce codes with high autocorrelation and low cross-correlation properties. Code length is an essential aspect of code and device architecture for coding characteristics. The hardware implementation of the system is designed by using FPGA De1-SoC. The FPGA have the abilities to enhance the transmission of data to the receiver in a short period of time. The performance of 2D OCDMA system is expected to surpass 1D OCDMA system in terms of BER and the number of simultaneous users that can be supported. The system encoder and decoder were designed using optical switch, splitter, combiner and modulator. The performance of 2D OCDMA system in terms of time spreading and wavelength spreading is also compared which shown a huge difference in the results. The best performance of the system is when the number of wavelength (M) is fixed to 18 and the number of times spreading (N) is 31 which can support 350 more simultaneous users.en_US
dc.language.isoenen_US
dc.publisherUniversiti Malaysia Perlis (UniMAP)en_US
dc.subject.otherOptical Code Division Multiple Access (OCDMA)en_US
dc.subject.otherMultiple Access Interference (MAI)en_US
dc.subject.otherFlexible Cross-Correlation code (FCC)en_US
dc.subject.otherField Programming Gate Array (FPGA)en_US
dc.subject.otherBit Error Rate (BER)en_US
dc.titleTwo dimensional (2D) OCDMA encoder/decoder for various industrial applicationen_US
dc.typeArticleen_US
dc.identifier.urlhttp://ijneam.unimap.edu.my
dc.contributor.urlnorshamsuri@unimap.edu.myen_US


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