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

fYear

2014

Firstpage

90

Lastpage

94

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Control System, Computing and Engineering (ICCSCE), 2014 IEEE International Conference on

Print_ISBN

978-1-4799-5685-2

Type

conf

DOI

10.1109/ICCSCE.2014.7072695

Filename

7072695