Improving spectral efficiency of SAC-OCDMA systems by SPD scheme [PDF]
IEICE Electronics Express, 2012 This letter presents a single photodiode detection (SPD) as an effective technique for eradicating both multiple-access interference (MAI) and phase-induced intensity noise (PIIN) in spectral amplitude coding optical code-division multiple-access (SAC-OCDMA) systems.
Hamza M. R. Al-Khafaji +3 more
openaire +5 more sources
In situ method for power re-equalization of wavelength pulses inside of OCDMA codes [PDF]
, 2011 A simple in-situ method to equalize power among individual wavelengths pulses representing two-dimensional wavelength-hopping time-spreading OCDMA code originally generated by a fibre Bragg grating-based OCDMA encoder is presented.
Glesk, Ivan +4 more
core +4 more sources
Nonlinear optical thresholding in a 4-Channel OCDMA system via two-photon absorption [PDF]
, 2009 We demonstrate the use of a Two-Photon Absorption based detector in an OCDMA system.
K. J. Dexter +12 more
core +3 more sources
Techne, 2021 In this study, the performance of bipolar optical code division multiple access (OCDMA) with dual electro-optical modulator (EOM) scheme for multi-user scenario was tested and analyzed with OptiSystem version 10.
Eddy Wijanto
doaj +1 more source
Design and Analysis of Self‐Healing Tree‐Based Hybrid Spectral Amplitude Coding OCDMA System
Security and Communication Networks, Volume 2017, Issue 1, 2017., 2017 This paper presents an efficient tree‐based hybrid spectral amplitude coding optical code division multiple access (SAC‐OCDMA) system that is able to provide high capacity transmission along with fault detection and restoration throughout the passive optical network (PON).
Waqas A. Imtiaz +6 more
wiley +1 more source
Analysis of hybrid subcarrier multiplexing of OCDMA based on single photodiode detection
EPJ Web of Conferences, 2017 This paper analyzes the performance of subcarrier multiplexing (SCM) of spectral amplitude coding optical code multiple access (SAC-OCDMA) by applying Recursive Combinatorial (RC) code based on single photodiode detection (SPD).
Ahmad N. A. A +4 more
doaj +1 more source
Development of New Spectral Amplitude Coding OCDMA Code by Using Polarization Encoding Technique
Applied Sciences, 2023 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 new DW family code, a flexible double weight (FDW) code, and a novel polarization
Syed Mohammad Ammar +6 more
doaj +1 more source
Noncoherent Spectral Optical CDMA System Using 1D Active Weight Two‐Code Keying Codes
Mathematical Problems in Engineering, Volume 2016, Issue 1, 2016., 2016 We propose a new family of one‐dimensional (1D) active weight two‐code keying (TCK) in spectral amplitude coding (SAC) optical code division multiple access (OCDMA) networks. We use encoding and decoding transfer functions to operate the 1D active weight TCK. The proposed structure includes an optical line terminal (OLT) and optical network units (ONUs)
Bih-Chyun Yeh, Antonino Laudani
wiley +1 more source
Free Space Optics: Current Applications and Future Challenges
International Journal of Optics, Volume 2015, Issue 1, 2015., 2015 FSO is a communication system where free space acts as medium between transceivers and they should be in LOS for successful transmission of optical signal. Medium can be air, outer space, or vacuum. This system can be used for communication purpose in hours and in lesser economy.
Aditi Malik +2 more
wiley +1 more source
Reducing BER of spectral-amplitude coding optical code-division multiple-access systems by single photodiode detection technique [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In this paper, we present a single photodiode detection (SPD) technique for spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) systems.
Al-Khafaji H. M. R. +4 more
doaj +1 more source