Title :
Review on two dimensional code of noncoherent OCDMA systems
Author :
Kadhim, Rasim Azeez ; Fadhil, Hilal Adnan ; Aljunid, S.A. ; Razalli, Mohamad Shahrazel
Author_Institution :
Sch. of Comput. & Commun. Eng., Univ. Malaysia Perlis (UniMAP), Pauh Putra, Malaysia
Abstract :
The design of the code is an important issue in an OCDMA systems, in which it can be constructed in one dimension or multi-dimensions. The two dimensional (2-D) code provides high spectral density and large number of subscribers. In this paper a literature review on noncoherent 2-D code families of OCDMA system is presented. The 2-D code is constructed by spreading the optical pulses in two dimensions. Generally, three popular schemes of 2-D OCDMA: spectral/time, spectral/spatial and time/spatial schemes. The most popular schemes are spectral/time and spectral/spatial. In the spectral/time, a different wavelengths are spread in different time slots. While the wavelengths are spread into many optical fibers in spectral/spatial scheme. Each scheme has a merits and demerits so that a tradeoff must be made to choose the suitable scheme for a specific application.
Keywords :
code division multiple access; optical fibre networks; multidimensional code; noncoherent OCDMA system 2D code; one-dimension code; optical code division multiple access network; optical fibers; optical pulse spreading; spectral-spatial scheme; spectral-time scheme; time-spatial scheme; two-dimensional code; Bit error rate; Encoding; Integrated optics; Multiaccess communication; Optical fibers; Receivers; 2-D optical orthogonal code OOC; optical code division multiple access (OCDMA); wavelength hopping time spreading (WHTS);
Conference_Titel :
Control System, Computing and Engineering (ICCSCE), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-5685-2
DOI :
10.1109/ICCSCE.2014.7072695
