[HTML][HTML] A performance investigation of SAC-OCDMA system based on a spectral efficient 2D cyclic shift code for next generation passive optical network

K Meftah, A Cherifi, A Dahani, M Alayedi… - Optical and Quantum …, 2021 - Springer
A two dimensional spectral/spatial cyclic shift (2D-CS) optical code division multiple access
(OCDMA) systems is proposed for a potentially next generation passive optical network (NG …

Development of new spectral amplitude coding OCDMA code by using polarization encoding technique

SM Ammar, N Ali, MN Saad, SA Aljunid, R Endut… - Applied Sciences, 2023 - mdpi.com
OCDMA is an optical access technology that has a lot of potential because it can be
asynchronously accessed and provides a higher level of security. The authors presented a …

[HTML][HTML] A fair comparison of SAC-OCDMA system configurations based on two dimensional cyclic shift code and spectral direct detection

M Alayedi, A Cherifi, A Ferhat Hamida… - Telecommunication …, 2022 - Springer
This paper investigates shortcomings that limit the performance of optical code division
multiple access (OCDMA) systems including the low cardinality and data rate as well as the …

[HTML][HTML] Performance improvement of optical multiple access CDMA network using a new three-dimensional (spectral/time/spatial) code

M Alayedi, A Cherifi, AF Hamida, BS Bouazza… - Wireless Personal …, 2021 - Springer
In this paper, a novel code named three dimensional single weight zero cross correlation
(3D-SWZCC) code has been developed for spectral/time/spatial (S/T/S) encoding in non …

Enhancing Security with Multi-level Steganography: A Dynamic Least Significant Bit and Wavelet-Based Approach.

MS Abuali, CBM Rashidi, RAA Raof… - Mathematical …, 2024 - search.ebscohost.com
This paper introduces a novel approach to enhancing multi-level security using
steganography, a method of concealing information within non-secret data. This paper …

Design improvement to reduce noise effect in CDMA multiple access optical systems based on new (2-D) code using spectral/spatial half-matrix technique

M Alayedi, A Cherifi, AF Hamida… - Journal of Optical …, 2024 - degruyter.com
This paper presents for non-coherent Optical Code Division Multiple Access (OCDMA)
systems a new optical code namely Two-Dimensional Half Spectral/Spatial Zero Cross …

Performance improvement of SAC-OCDMA network utilizing an identity column shifting matrix (ICSM) code

M Alayedi, A Cherifi, AF Hamida, R Matem… - … Cybercrimes, and Smart …, 2022 - Springer
In general, SAC-OCDMA systems are confronted with many shortcomings that affect their
performance, for instance, multiple access interference (MAI), phase-induced intensity noise …

Performance enhancement of SAC-OCDMA system using an identity row shifting matrix code

M Alayedi, A Cherifi, A Ferhat Hamida… - … and Applications: ICITA …, 2022 - Springer
In order to face the shortcomings and problems, in spectral amplitude coding-optical code-
division multiple access (SAC-OCDMA) systems, presented by multiple access interference …

Construction and performance analysis of variable weight zero cross correlation Latin square code for spectral amplitude coding OCDMA systems

Y Liu, C Li, Y Lu - Optoelectronics Letters, 2023 - Springer
The selection of appropriate codes for an optical code division multiple access (OCDMA)
network, which determines the maximum number of users and bit error rate (BER) supported …

Narrative Review on Advances in Measurement of Electrical Properties of Materials using Free Space Method

R Sivakumar, SN Azemi, LY Seng… - Journal of Advanced …, 2024 - semarakilmu.com.my
The free-space measurement technique is a widely used method for determining the
electrical characteristics of materials. The free-space measurement approach had attracted …