4 October 2016 Variable weight Khazani-Syed code using hybrid fixed-dynamic technique for optical code division multiple access system
Siti Barirah Ahmad Anas, Saleh Seyedzadeh, Makhfudzah Mokhtar, Ratna Kalos Zakiah Sahbudin
Author Affiliations +
Abstract
Future Internet consists of a wide spectrum of applications with different bit rates and quality of service (QoS) requirements. Prioritizing the services is essential to ensure that the delivery of information is at its best. Existing technologies have demonstrated how service differentiation techniques can be implemented in optical networks using data link and network layer operations. However, a physical layer approach can further improve system performance at a prescribed received signal quality by applying control at the bit level. This paper proposes a coding algorithm to support optical domain service differentiation using spectral amplitude coding techniques within an optical code division multiple access (OCDMA) scenario. A particular user or service has a varying weight applied to obtain the desired signal quality. The properties of the new code are compared with other OCDMA codes proposed for service differentiation. In addition, a mathematical model is developed for performance evaluation of the proposed code using two different detection techniques, namely direct decoding and complementary subtraction.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2016/$25.00 © 2016 SPIE
Siti Barirah Ahmad Anas, Saleh Seyedzadeh, Makhfudzah Mokhtar, and Ratna Kalos Zakiah Sahbudin "Variable weight Khazani-Syed code using hybrid fixed-dynamic technique for optical code division multiple access system," Optical Engineering 55(10), 106101 (4 October 2016). https://doi.org/10.1117/1.OE.55.10.106101
Published: 4 October 2016
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CITATIONS
Cited by 7 scholarly publications.
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KEYWORDS
Receivers

Photodetectors

Code division multiplexing

Optical engineering

Signal detection

Signal to noise ratio

Optical networks

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