Modified multi-wavelength optical orthogonal code for spectral efficiency improvement in two-dimensional optical CDMA system

2007 ◽  
Vol 1 (6) ◽  
pp. 1195 ◽  
Author(s):  
M. Morelle ◽  
C. Goursaud-Brugeaud ◽  
A. Julien-Vergonjanne ◽  
J.-P. Cances
Keyword(s):  
Spectral Efficiency ◽  
Optical Cdma ◽  
Cdma System ◽  
Two Dimensional ◽  
Efficiency Improvement ◽  
Optical Orthogonal Code ◽  
Multi Wavelength ◽  
Orthogonal Code

Spectral Efficiency Study of QC-CHPCs in Multirate Optical CDMA System

2007 ◽  
Vol 25 (9) ◽  
pp. 118-128 ◽  
Author(s):  
Cheng-Yuan Chang ◽  
Hung-Ta Chen ◽  
Guu-Chang Yang ◽  
Wing Kwong
Keyword(s):  
Spectral Efficiency ◽  
Optical Cdma ◽  
Cdma System

A new family of two-dimensional triple-codeweight asymmetric optical orthogonal code for OCDMA networks

2009 ◽  
Vol 7 (2) ◽  
pp. 102-105 ◽  
Author(s):  
殷洪玺 Hongxi Yin ◽  
梁巍 Wei Liang ◽  
马乐 Le Ma ◽  
覃丽巧 Liqiao Qin
Keyword(s):  
Two Dimensional ◽  
Optical Orthogonal Code ◽  
New Family ◽  
Orthogonal Code

Multilength two-dimensional codes for optical CDMA system

2005 ◽  
Vol 1 (3) ◽  
pp. 232-234 ◽  
Author(s):  
Xiu-li Zhou ◽  
Yu Hu
Keyword(s):  
Optical Cdma ◽  
Cdma System ◽  
Two Dimensional

Two Dimensional Tunable Optical-CDMA System

2016 ◽  
Vol 4 (1) ◽  
pp. 125
Author(s):  
Rajesh Yadav Yadav ◽  
Gurjit Kaur Kaur
Keyword(s):  
Prime Number ◽  
Code Division Multiple Access ◽  
Optical Signal ◽  
Optical Cdma ◽  
Cdma System ◽  
Two Dimensional ◽  
Eye Diagram ◽  
Optical Delay ◽  
Code Division Multiple ◽  
Multiple Access System

<p>In this work an experimental demonstration is proposed to implement the synchronous optical code division multiple access system using two dimensional wavelength hopping and time spreading optical prime code is presented. An optical CDMA system is configured on latest version of optisystem by optiwave for the 20 users (Prime Number = 5) connected in a network operating at a bit rate 10 Gbps each. Tunability is achieved by using a MATLAB based delay selector which serves as the source of control signal for optical delay lines. The encoded optical signal of each user has been assigned a particular mode. The resulting optical signal is then transmitted over parabolic index multimode optical fiber. The received signal can successfully be retrieved at the decoder, when the encoder and decoder are configured for the same user. The performance of Optical CDMA system is evaluated in terms of the autocorrelation and cross correlation function, BER, Q factor, eye diagram and compared with 1D code for a given prime number. </p>

scholarly journals Noncoherent spatial/spectral optical CDMA system with two-dimensional perfect difference codes

2005 ◽  
Vol 23 (12) ◽  
pp. 3966-3980 ◽  
Author(s):  
Cheing-Hong Lin ◽  
Jingshown Wu ◽  
Chun-Liang Yang
Keyword(s):  
Optical Cdma ◽  
Cdma System ◽  
Two Dimensional

Development of a novel two-dimensional-SWZCC – Code for spectral/spatial optical CDMA system

2019 ◽  
Vol 109 ◽  
pp. 233-240 ◽  
Author(s):  
A. Cherifi ◽  
N. Jellali ◽  
M. Najjar ◽  
S.A. Aljunid ◽  
B.S. Bouazza
Keyword(s):  
Optical Cdma ◽  
Cdma System ◽  
Two Dimensional

Optimizing spectral efficiency in multiwavelength optical CDMA system

2003 ◽  
Vol 51 (9) ◽  
pp. 1442-1445 ◽  
Author(s):  
Tung-Wah Frederick Chang ◽  
E.H. Sargent
Keyword(s):  
Spectral Efficiency ◽  
Optical Cdma ◽  
Cdma System

Scheme of tunable optical orthogonal code encoder/decoder for optical CDMA

2000 ◽  
Author(s):  
Junxian Ma ◽  
Haoqiang Zhou ◽  
Shuwen Yang
Keyword(s):  
Optical Cdma ◽  
Optical Orthogonal Code ◽  
Orthogonal Code
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