Results 1 to 10 of about 120 (109)
Performance analysis of wavelength multiplexed SAC OCDMA codes in beat noise mitigation in SAC OCDMA systems [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In this paper we investigate the use of wavelength multiplexed spectral amplitude coding (WM SAC) codes in beat noise mitigation in coherent source SAC OCDMA systems.
Alhassan A. M. +3 more
doaj +3 more sources
A Study of Dispersion Compensation of Polarization Multiplexing-Based OFDM-OCDMA for Radio-over-Fiber Transmissions. [PDF]
Sensors (Basel), 2016 Chromatic dispersion from optical fiber is the most important problem that produces temporal skews and destroys the rectangular structure of code patterns in the spectra-amplitude-coding-based optical code-division multiple-access (SAC-OCDMA) system ...
Yen CT, Chen WB.
europepmc +2 more sources
Performance of SAC OCDMA-FSO communication systems [PDF]
Optik, 2013 In this paper, the performance of free space optical (FSO) communication system employing the spectral amplitude coding optical code division multiple access (SAC OCDMA) technique is presented. SAC OCDMA is one of the multiplexing schemes that have become a research area of interest in optical communication because of its flexibility in allocating ...
Siti Barirah Ahmad Anas +2 more
exaly +2 more sources
Nonlinear Effect and MAI Impact on SAC-OCDMA System Based on 2D Multi-Diagonal Code and Laser Array
Applied Sciences (Switzerland), 2021 A new architecture for Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) system based on two Dimensional Multi Diagonal (2D-MD) codes named 2D-MD SAC-OCDMA and utilizing a laser optical source is proposed for Long-Reach Passive ...
Cherifi Abdelhamid +2 more
exaly +3 more sources
Development of Multi-Service (MS) for SAC-OCDMA systems [PDF]
Optics and Laser Technology, 2014 A Multi-Service Optical Code Division Multiple Access (MS-OCDMA) code based on Spectral Amplitude Coding (SAC) is proposed in this paper. The advantage of proposed code on setting a variable number of users in a basic code matrix with a fixed code weight makes it more flexible in generating codewords.
Saleh Seyedzadeh +2 more
exaly +2 more sources
Applied Sciences, 2021 In this study, a bipolar optical code-division multiple-access (Bi-OCDMA) technique based on spectral amplitude coding (SAC) was proposed by using a phase modulator to realize polarization coding through a free-space optical (FSO) channel.
Eddy Wijanto, Chun-Ming Huang
doaj +1 more source
New dynamic technique for SAC-OCDMA system [PDF]
2013 IEEE 4th International Conference on Photonics (ICP), 2013 In this paper a family of novel spreading sequences, called a Multi-Service (MS) code have been proposed for SAC-OCDMA system. The performance of the proposed code is demonstrated using mathematical analysis. Reference to the Bit Error Rate (BER) of 10-9 MS code supports up to 90 users simultaneously, choosing code weight of 5 when the bit-rate is 622 ...
M. H. Kakaeea +4 more
openaire +1 more source
Frontiers in Physics, 2022 A novel free space optics (FSO) system is introduced in this article by combining orthogonal frequency division multiplexing (OFDM) with spectral amplitude coding optical code division multiple access (SAC-OCDMA) to be implemented in 5G technology and ...
Mehtab Singh +5 more
doaj +1 more source
Alexandria Engineering Journal, 2022 A novel 120 Gbps free space optics (FSO) transmission scheme is introduced by combining orbital angular momentum (OAM) multiplexed signals with spectral amplitude coded (SAC)-optical code division multiplexing access (OCDMA) technique.
Mehtab Singh +3 more
doaj +1 more source
MATEC Web of Conferences, 2017 This paper demonstrates the comparison between conventional OCDMA system and subcarrier multiplexing (SCM) SAC-OCDMA system by applying Recursive Combinatorial (RC) code based on single photodiode detection (SPD).
Ahmad N. A. A +4 more
doaj +1 more source