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Reduction of multiple access interference in OCDMA systems using a semiconductor based TPA device

Dexter, Karl J. and Maguire, Paul J. and Barry, Liam P. (2007) Reduction of multiple access interference in OCDMA systems using a semiconductor based TPA device. In: ICTON 2007 - 9th International Conference on Transparent Optical Networks, 1-5 July 2007 , Rome, Italy.

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The authors present a simulation model and results for a four user OCDMA system operating at an overall data rate of 4 Gb/s (4 x 1 Gb/s). The work presents the novel use of a nonlinear detector based on TPA for simultaneous thresholding and detection in an OCDMA system. The detection of the decoded optical signal is also performed using a linear (PIN) detector separately. It is demonstrated that the use of the nonlinear detector can improve the power penally associated with the transition from a single user system to a four user system by approximately 8.5 dB in comparison to the same system using a linear detector. These results are in good agreement with experimental results already taken.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Uncontrolled Keywords:optical code division multiple access; two-photon absorption; nonlinear detection; optical thresholder;
Subjects:Engineering > Optical communication
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Publisher:Institute of Electrical and Electronics Engineers
Official URL:
Copyright Information:©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
ID Code:2283
Deposited On:19 Jan 2009 11:23 by DORAS Administrator. Last Modified 05 Mar 2009 14:30

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