Abstract | ||
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We consider an optical code-division multiple-access (OCDMA) network that supports multiple traffic classes. Each class has different processing gain and performance requirements. In this paper, a new method is proposed to analyze the cutoff rates for a multiclass, multirate optical frequency-hopping code-division multiple-access system using fiber Bragg gratings and direct detection. This approach exploits the linear structure of passive OCDMA 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 single-class system is derived. In addition, for a multiclass system, an expression that relates the cutoff rates of the offered classes is introduced, and it is called the service curve. It is shown that for a required quality of service guarantee, a number of active users, and a given probability of hit, the system's data rate can be increased beyond the nominal limit imposed by the physical constraint of the encoder-decoder set. |
Year | DOI | Venue |
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2005 | 10.1109/TCOMM.2004.841999 | IEEE Transactions on Communications |
Keywords | Field | DocType |
Bragg gratings,code division multiple access,frequency hop communication,multimedia communication,optical fibre networks,telecommunication traffic,QoS,bit-overlap procedure,cutoff rate,fiber Bragg grating,multiclass OFFH-CDMA system,multimedia network,network traffic,optical frequency-hopping code-division multiple-access system,passive system,quality of service,single-class system,Cutoff rate,fiber Bragg grating,multimedia network,multirate,optical frequency-hopping code-division multiple access (OFFH-CDMA),overlapping coefficient | Fiber Bragg grating,Telecommunications network,Computer science,Cutoff,Quality of service,Electronic engineering,Decoding methods,Process gain,Code division multiple access,System model | Journal |
Volume | Issue | ISSN |
53 | 2 | 0090-6778 |
Citations | PageRank | References |
4 | 0.54 | 6 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Elie Inaty | 1 | 34 | 11.97 |
Hossam M. H. Shalaby | 2 | 67 | 20.64 |
Paul Fortier | 3 | 101 | 17.51 |