Title :
Research of algebra congruent codes used in two-dimensional OCDMA system
Author :
Pu, Tao ; Li, Yu Quan ; Yang, Shu Wen
Author_Institution :
Inst. of Commun. Eng., Jiangsu, China
Abstract :
After summarizing the application of linear, quadratic, and hyperbolic operators in code-division multiple-access (CDMA) system, a generalized algebraic congruent code is presented by its construction formula in three different categories: frequency-hop (FH), time-spread (TS), and FH-TS codes. On the discussion of those three codes´ auto- and cross-correlations and their contribution to bit-error-rate (BER) performances, a novel two-dimensional optical CDMA (OCDMA) system is provided in which different types of codes are used to provide different types of service. Such an OCDMA system is very fit for the case that a small part of services are high bit rate or high quality of service, while a great amount of services are not.
Keywords :
code division multiple access; optical fibre subscriber loops; quality of service; 2D OCDMA system; algebra congruent codes; asynchronous multi-access optical networks; bit-error-rate performances; frequency-hop codes; high bit rate; high quality of service; hyperbolic operators; linear operators; quadratic operators; time-spread codes; two-dimensional OCDMA system; Algebra; Bit error rate; Fiber gratings; High speed optical techniques; Multiaccess communication; Optical arrays; Optical fiber networks; Quality of service; Two dimensional displays; Wireless communication;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.819549
