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Information Leakage Rate of Optical Code Division Multiple Access Network Using Wiretap Code [PDF]

open access: yesEntropy, 2023
Secrecy capacity is usually employed as the performance metric of the physical layer security in fiber-optic wiretap channels. However, secrecy capacity can only qualitatively evaluate the physical layer security, and it cannot quantitatively evaluate ...
Rongwo Xu   +4 more
doaj   +2 more sources

Two-Dimensional Permutation Vectors’ (PV) Code for Optical Code Division Multiple Access Systems [PDF]

open access: yesEntropy, 2020
In this paper, we present a new algorithm to generate two-dimensional (2D) permutation vectors’ (PV) code for incoherent optical code division multiple access (OCDMA) system to suppress multiple access interference (MAI) and system complexity.
Hassan Yousif Ahmed   +5 more
doaj   +2 more sources

Fault Tolerant Spectral/Spatial Optical Code Division Multiple Access Passive Optical Network [PDF]

open access: yesSensors
High-capacity communication networks are built to provide high throughput and low latency to accommodate the growing demand for bandwidth. However, the provision of these features is subject to a robust underlying network, which can provide high capacity
Rahat Ullah   +8 more
doaj   +2 more sources

Bipolar Optical Code Division Multiple Access Techniques Using a Dual Electro-Optical Modulator Implemented in Free-Space Optics Communications [PDF]

open access: yesSensors, 2020
This study developed a bipolar optical code division multiple access (Bi-OCDMA) technique based on spectral amplitude coding for the formation and transmission of optical-polarized and coded signals over wireless optical channels.
Shin-Pin Tseng   +3 more
doaj   +2 more sources

A New Prime Code for Synchronous Optical Code Division Multiple-Access Networks [PDF]

open access: yesJournal of Computer Networks and Communications, 2018
A new spreading code based on a prime code for synchronous optical code-division multiple-access networks that can be used in monitoring applications has been proposed.
Huda Saleh Abbas   +2 more
doaj   +3 more sources

Multiple Access Techniques for Bipolar Optical Code Division in Wireless Optical Communications [PDF]

open access: yesIEEE Access, 2020
In this paper, multiple access techniques for bipolar optical code division are proposed for application in wireless optical communications. First, several fiber Bragg gratings (FBGs) and optical circulators are used to encode optical signals.
Hsu-Chih Cheng   +4 more
doaj   +3 more sources

Code acquisition of random optical codes in optical code-division multiple-access

open access: yesIET Communications, 2012
0 ...
Jesús A. Martín-González   +4 more
openaire   +4 more sources

Mixed construction of OOC for optical code division multiple access networks

open access: yesIET Communications, 2019
Optical orthogonal codes play an important role in optical code division multiple access networks and optical wireless systems. In this study, by combining combinatorial design and meta‐heuristic search algorithm, a mixed construction of ‐OOCs is proposed.
Xiyang Li, Kenneth W. Shum
openaire   +4 more sources

Chaotic Spread Spectrum Technology for Optical Code Division Multiple Access Passive Optical Network

open access: yesGuangtongxin yanjiu, 2021
Aiming at the problem of capacity in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON), Optical Code Division Multiple Access WDM-PON (OCDMA-WDM-PON) based on chaotic spread spectrum is proposed to expand the capacity and rate, ensuring ...
Li-wei YANG   +4 more
doaj   +1 more source

Maximal (v, k, 2, 1) Optical Orthogonal Codes with k = 6 and 7 and Small Lengths

open access: yesMathematics, 2023
Optical orthogonal codes (OOCs) are used in optical code division multiple access systems to allow a large number of users to communicate simultaneously with a low error probability.
Tsonka Baicheva, Svetlana Topalova
doaj   +1 more source

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