Results 81 to 90 of about 20,276,485 (162)

Differential Service in a Bidirectional Radio-over-Fiber System over a Spectral-Amplitude-Coding OCDMA Network

Photonics, 2016
A new scheme of radio-over-fiber (RoF) network based on spectral-amplitude-coding (SAC) optical code division multiple access (OCDMA) is herein proposed.
Chao-Chin Yang, Kai-Sheng Chen, Jen-Fa Huang, Jia-Cyuan Kuo   +3 more
doaj   +1 more source

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

Entropy (Basel), 2023
Xu R, Sun L, Ji J, Wang K, Song Y.
europepmc   +1 more source

Repeat accumulate code division multiple access and its hybrid detection

, 2008
In this paper, we propose the novel concept of Repeat Accumulate Code Division Multiple Access (RA-CDMA), which employs unique, user-specific channel code generator matrices (interleavers) for differentiating the users.
Chen, Sheng, Xu, Lei, Zhang, Rong, Hanzo, Lajos   +3 more
core   +2 more sources

Performance Evaluation of FSO-OCDMA Based on Security Perspective

Iraqi Journal for Computers and Informatics
With the high explosion in data traffic in today's networks, the importance of secure and high-capacity optical wireless communication has become more pressing than ever before.
Ibrahim F. Alshammari, Saad Al-Dakheel, Rusul Abdulridha Muttashar   +2 more
doaj   +1 more source

Addressing Multi-User Interference in Vehicular Visible Light Communications: A Brief Survey and an Evaluation of Optical CDMA MAC Utilization in a Multi-Lane Scenario. [PDF]

Sensors (Basel), 2023
Plascencia E, Guan H, Chassagne L, Căilean AM, Barrois O, Shagdar O.   +5 more
europepmc   +1 more source

Simulation and Noise Analysis of Multimedia Transmission in Optical CDMA Computer Networks

Journal of ICT Research and Applications, 2013
This paper simulates and analyzes noise of multimedia transmission in a flexible optical code division multiple access (OCDMA) computer network with different quality of service (QoS) requirements.
Nasaruddin Nasaruddin, Tetsuo Tsujioka
doaj  

Design and Investigation on Image Transmission in Multi-User Cross-Layer Security Network

IEEE Access, 2019
A multi-user cross-layer security network based on optical code division multiple access (OCDMA) and algorithmic cryptography is proposed, and its security performance is analyzed quantitatively for the first time.
Jianhua Ji, Wenjun Li, Bing Wu, Ke Wang, Ming Xu, Lu Sun   +5 more
doaj   +1 more source

Beyond 5G Fronthaul Based on FSO Using Spread Spectrum Codes and Graphene Modulators. [PDF]

Sensors (Basel), 2023
Neves D, Sanches A, Nobrega R, Mrabet H, Dayoub I, Ohno K, Haxha S, Glesk I, Jurado-Navas A, Raddo T.   +9 more
europepmc   +1 more source

Evaluation of effectiveness of FTTX-GPON technology-based narrowband direct modulation using shared WDM-SAC-OCDMA system

Results in Optics
This research presents a secure fiber-to-the-x giga passive optical network (FTTX-GPON) architecture utilizing a narrowband directly modulated vertical-cavity surface-emitting laser (VCSEL).
Sura Khalil Ibrahim, Ghusoon M. Ali, Ali Khalid Jasim   +2 more
doaj   +1 more source

Optical code-division multiple access (OCDMA)

, 2004
Optical Code Division Multiple Access (OCDMA) is an alternative multiplexing scheme to the more conventional Wavelength Division Multiple Access (WDMA) and Time Division Multiple Access (TDMA).
Petropoulos, P.
core   +1 more source