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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

A Framework for Code Division Multiple Access Wireless Power Transfer

open access: yesIEEE Access, 2021
The availability of energy is one of the major hindrances to unlocking the massive potential of electronic devices. Powering a highly connected network of devices requires multiple access and a wireless power transfer (WPT) solution that is scalable and ...
Akshay Sarin, Al-Thaddeus Avestruz
doaj   +1 more source

Multiple-Access Interference and Multipath Influence Mitigation for Multicarrier Code-Division Multiple-Access Signals

open access: yesIEEE Access, 2020
Sidelobe raising, caused by multipath and multiple-access interference (MAI), hinders the signal detection and time-delay estimation of multicarrier code-division multiple-access (MC-CDMA) signals, which are crucial for localization and tracking ...
Yuyao Shen, Ying Xu
doaj   +1 more source

Enhanced overloaded code division multiple access for network on chip

open access: yesIET Computers & Digital Techniques, 2022
The Code‐division multiple access (CDMA) method is commonly used as the network infrastructure in multi‐core chips. One of its advantages is the simultaneous connection of all network components. Another advantage is the constant delay of this method. On
Behnam Vakili, Morteza Gholipour
doaj   +1 more source

Design and Implementation of MC-CDMA Technique Using FPGA [PDF]

open access: yesEngineering and Technology Journal, 2013
Multicarrier Code Division Multiple Access (MC-CDMA) is attractive technique for high speed wireless data transmission; it's a combination of Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA).
il A. H. Hadi, Layla Hattim Abood
doaj   +1 more source

Sparse code multiple access on the generalized frequency division multiplexing

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
Recent advances in the communication systems culminated in a new class of multiple access schemes, named non-orthogonal multiple access (NOMA), where the main goal is to increase the spectrum efficiency by overlapping data from different users in a ...
Guilherme P. Aquino, Luciano L. Mendes
doaj   +1 more source

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

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   +1 more source

SCMA Spectral and Energy Efficiency With QoS

open access: yesIEEE Access, 2021
Sparse code multiple access (SCMA) is one of the promising candidates for new radio access interface. The new generation communication system is expected to support massive user access with high capacity. However, there are numerous problems and barriers
S. Jaber, W. Chen, K. Wang
doaj   +1 more source

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