Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/720
Title: On the cutoff rate of a variable-bit-rate (VBR) OFFH-CDMA system
Authors: Inaty, Elie 
Shalaby, Hossam M. H.
Fortier, Paul
Affiliations: Department of Electrical Engineering 
Keywords: Decoding
Quality of service
Variable rate codes
Frequency hop communication
Bragg gratings
Optical fibre networks
Subjects: Code division multiple access
Issue Date: 2002
Publisher: IEEE
Part of: IEEE International Conference on Communications, 2002. ICC 2002.
Start page: 2927
End page: 2932
Conference: International Conference on Communications (28 April-2 May 2002 : New York, NY, USA) 
Abstract: 
A new method is proposed to analyze the cutoff rate of a variable-bit-rate (VBR) optical fast frequency hopping code division multiple access system (OFFH-CDMA) using fiber Bragg gratings and direct detection. This approach exploits the linear structure of passive optical CDMA systems and the nominal time required to accomplish the encoding-decoding operations in such systems. A system model is presented and analyzed based on a newly introduced bit-overlap procedure. An expression for the cutoff rate of a VBR OFFH-CDMA system is derived. It is shown that for a required quality of service (QoS) guarantee, the system's data rate can be increased beyond the nominal limit imposed by the physical constraint of the encoder-decoder set.
URI: https://scholarhub.balamand.edu.lb/handle/uob/720
Ezproxy URL: Link to full text
Type: Conference Paper
Appears in Collections:Department of Electrical Engineering

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