Performance analysis of a 2D double hard-limited OCDMA system over FSO link under strong turbulence for defense applications

This work analyses the performance of a complete two-dimensional Optical Code Division Multiple Access system over Free Space Optics link under strong atmospheric turbulence. The system feasibility and performance is demonstrated through simulation with the commercial tool OptiSystem, from Optiwave,...

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Bibliographic Details
Published inMILCOM 2012 - 2012 IEEE Military Communications Conference pp. 1 - 6
Main Authors Carneiro, V. G. A., Rodrigues, G. K., Giraldi, M. T. M. R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2012
Subjects
Adaptive optics
Bit error rate
Defense
Free Space Optics (FSO)
Hard-Limiter
Modulation
Optical attenuators
Optical Code Division Multiple Access (OCDMA)
Optical fibers
Optical Orthogonal Codes
Optical receivers
Optical transmitters
Prime Codes
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Summary:This work analyses the performance of a complete two-dimensional Optical Code Division Multiple Access system over Free Space Optics link under strong atmospheric turbulence. The system feasibility and performance is demonstrated through simulation with the commercial tool OptiSystem, from Optiwave, Inc. If a necessary component was not present in the software or its model did not correspond to the expectations, the desired device was created and programmed using the software MatLab. With the presented proposal, multiple users could share a single optical wireless channel, transmitting coded information for defense mobile applications. A usual optical sequence, called Prime Code, is used for both wavelength-hopping and time-spreading. The effects of variable distance, strong turbulence and different divergence angles are considered in terms of Bit Error Rate.
ISBN:1467317292
9781467317290
ISSN:2155-7578
2155-7586
DOI:10.1109/MILCOM.2012.6415644