Implementation of 3-D Optical CDMA Networks with Double Balanced Detection

2014 ◽  
Author(s):  
Chih Ta Yen ◽  
Chih Ming Chen
Keyword(s):  
Optical Cdma ◽  
Cdma Networks ◽  
Balanced Detection

scholarly journals BER Analysis Using Beat Probability Method of 3D Optical CDMA Networks with Double Balanced Detection

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Chih-Ta Yen ◽  
Chih-Ming Chen
Keyword(s):  
System Performance ◽  
Multiple Access ◽  
Three Dimensional ◽  
Multiple Access Interference ◽  
Optical Cdma ◽  
Probability Method ◽  
Detection Mechanism ◽  
Cdma Networks ◽  
Balanced Detection ◽  
Code Division Multiple

This study proposes novel three-dimensional (3D) matrices of wavelength/time/spatial code for code-division multiple-access (OCDMA) networks, with a double balanced detection mechanism. We construct 3D carrier-hopping prime/modified prime (CHP/MP) codes by extending a two-dimensional (2D) CHP code integrated with a one-dimensional (1D) MP code. The corresponding coder/decoder pairs were based on fiber Bragg gratings (FBGs) and tunable optical delay lines integrated with splitters/combiners. System performance was enhanced by the low cross correlation properties of the 3D code designed to avoid the beat noise phenomenon. The CHP/MP code cardinality increased significantly compared to the CHP code under the same bit error rate (BER). The results indicate that the 3D code method can enhance system performance because both the beating terms and multiple-access interference (MAI) were reduced by the double balanced detection mechanism. Additionally, the optical component can also be relaxed for high transmission scenery.

Halton-Chaos and ALPSO power allocation methods for passive optical CDMA networks

2021 ◽  
pp. 153911
Author(s):  
Gisele Alves Santana ◽  
Layhon Roberto Rodrigues dos Santos ◽  
Cristiane A. Pendeza Martinez ◽  
André Luís Machado Martinez ◽  
Taufik Abrão
Keyword(s):  
Power Allocation ◽  
Optical Cdma ◽  
Cdma Networks ◽  
Allocation Methods

Analysis of coherent optical CDMA networks employing DPSK transmission

2005 ◽  
Vol 152 (6) ◽  
pp. 321-329 ◽  
Author(s):  
L. Shi ◽  
W. Johnstone ◽  
I. Andonovic
Keyword(s):  
Optical Cdma ◽  
Cdma Networks
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