Results 91 to 100 of about 20,276,485 (162)

Analysis of Optical CDMA Signal Transmission: Capacity Limits and Simulation Results

EURASIP Journal on Advances in Signal Processing, 2005
We present performance limits of the optical code-division multiple-access (OCDMA) networks. In particular, we evaluate the information-theoretical capacity of the OCDMA transmission when single-user detection (SUD) is used by the receiver.
Yim Raymond MH, Garba Aminata A, Bajcsy Jan, Chen Lawrence R   +3 more
doaj   +1 more source

Four-beam OAM-based unipotent single-entry code for high-capacity 40× 16 Gbps FSO links

Frontiers in Physics
This paper introduces a novel free space optics (FSO) communication system for future high-speed optical communication networks. The proposed system integrates orbital angular momentum (OAM) modes with an optical code division multiple access (OCDMA ...
Syed Mohammad Ammar, Syed Mohammad Ammar, Hassan Yousif Ahmed, Syed Alwee Aljunid, Syed Alwee Aljunid, Medien Zeghid, Sami Mourou, Norshamsuri Ali, Norshamsuri Ali   +8 more
doaj   +1 more source

Optical detection of optical code division multiple access

, 2006
177 p.This thesis studies and analyzes the optical detection for optical code division multiple access (OCDMA) communication system. Unlike the conventional detection scheme which uses optical pulses, our study addresses the optical detection that is ...
Kok, Shaw Wei
core   +1 more source

A 930 m/180 Gbps*User Underwater Coherent Optical Code-Division Multiple-Access Network Based on Hybrid 256-Differential Pulse Position Modulation and Weighted Modified Prime Code Sequence

Photonics
Currently, there are three types of optical communication networks based on the communication channel between the transmitter and receiver: the optical fiber channel, visible light channel, and optical wireless channel networks. The last type has several
Morsy Ahmed Morsy Ismail, Khalid Saleh
doaj   +1 more source

Performance Analysis of an Integrated Orthogonal Frequency Division Multiplexing/Optical Code Division Multiple Access Underwater Optical Wireless Communication

Engineered Science
This paper presents Orthogonal frequency division multiplexing (OFDM)/Optical code division multiple access (OCDMA) Underwater optical wireless communication (UOWC) transmission.
Neetu Sankhwar, Mehtab Singh, Somia A. Abd El-Mottaleb, Hassan Yousif Ahmed, Median Zeghid, Sami Mourou   +5 more
doaj   +1 more source

PERFORMANCE ANALYSIS OF OPTICAL CDMA SYSTEM USING VC CODE FAMILY UNDER VARIOUS OPTICAL PARAMETERS [PDF]

Journal of Engineering Science and Technology, 2012
The intent of this paper is to study the performance of spectral-amplitude coding optical code-division multiple-access (OCDMA) systems using Vector Combinatorial (VC) code under various optical parameters.
HASSAN YOUSIF AHMED, S. A. ALJUNID, N . M. SAAD, AMMAR E. BABIKER, HILAL FADHIL, M. ALMALEEH   +5 more
doaj  

A Survey of NOMA for VLC Systems: Research Challenges and Future Trends. [PDF]

Sensors (Basel), 2022
Sadat H, Abaza M, Mansour A, Alfalou A.
europepmc   +1 more source

All-optical pulse reshaping and retiming systems incorporating pulse shaping fiber Bragg grating

, 2006
This paper demonstrates two optical pulse retiming and reshaping systems incorporating superstructured fiber Bragg gratings (SSFBGs) as pulse shaping elements.
Ibsen, M., Parmigiani, F., Petropoulos, P., Richardson, D.J.   +3 more
core   +1 more source

Dynamic weight routing and optical-code algorithm based on SDN. [PDF]

Heliyon, 2023
Li L, Li K, Meng X, Wang Y, Wang X.
europepmc   +1 more source

Smart Sensor Technologies for IoT. [PDF]

Sensors (Basel), 2021
Brida P, Krejcar O, Selamat A, Kertesz A.   +3 more
europepmc   +1 more source