Title :
Multirate fiber-optic CDMA: system design and performance analysis
Author :
Maric, S.V. ; Lau, K.N.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
In this paper, we discuss possibilities of multirate transmission using fiber-optics code-division multiple-access (CDMA) networks. Two schemes are introduced: the parallel scheme and the serial mapping scheme. The theory of optical CDMA is reviewed and the basic properties of OOC families used in the paper given. Also a new property of optical orthogonal code (OOC) sequences is introduced which greatly increases the number of sequences in the network. Performance analysis of the two systems is done using as the parameter the number of simultaneous different-rate users as a function of the required probabilities of error. It is shown that addition of error correction coding increases the number of users in the network. Examples of the two systems are given and it is shown that a high number of different-rate users can be accommodated in the network with no increase in the complexity of optical processing.
Keywords :
code division multiple access; error correction; optical fibre networks; probability; CDMA networks; different-rate users; error correction coding; fiber-optics code-division multiple-access networks; multirate fiber-optic CDMA system design; multirate transmission; optical orthogonal code; optical processing; parallel scheme; performance analysis; required error probabilities; review; serial mapping scheme; Autocorrelation; Error correction codes; High speed optical techniques; Multiaccess communication; Optical fiber networks; Optical fiber theory; Optical receivers; Optical signal processing; Performance analysis; System analysis and design;
Journal_Title :
Lightwave Technology, Journal of
