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World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

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Performance analysis of 2-D time-wavelength PPM-OCDMA systems

Bazan, T.M.A. and Harle, D.A. and Andonovic, I. (2006) Performance analysis of 2-D time-wavelength PPM-OCDMA systems. In: Optical Communication Systems and Networks 2006. Acta Press. ISBN 0-88986-563-9

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Abstract

The performance of 2-D time-wavelength M-ary pulse position modulation (PPM) optical code division multiple access (OCDMA) systems utilizing coherent light sources is investigated. Beat noise, multiple access interference, thermal, shot, and relative intensity noise are considered in the analysis. In addition, comparisons between systems with PPM and on-off keying (OOK) formats in both physical and link layer metrics are performed. Numerical results show that, for high pulse position multiplicity, M, systems with PPM accommodates higher numbers of simultaneous users at data rates suitable for local area networks requirements.