PIIN Cancellation Using a Novel Receiving Architecture for Spectral/Spatial SAC-OCDMA System

Bouarfa, Abdelkader; Kandouci, Malika; Garadi, Ahmed; Djellab, H.

doi:10.1515/joc-2017-0179

Cited by 8 publications

(2 citation statements)

References 10 publications

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“…The results have shown that the user's number achieved by the proposed system is the user number of the 1D system multiply by the couplers' number. In addition, the new proposed system has presented good performances at the high data rate [4].…”

Section: Introductionmentioning

confidence: 93%

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Evaluation Performance of Two-Dimensional Multi-Diagonal Code Using Polarization and Wavelength of OCDMA System

Dhaam

Ali

Wadday

2020

Al-Furat Journal of Innovations in Electronics and Computer Engineering

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In this paper, a new encoder/decoder technique has employed two orthogonal polarization states (vertical and horizontal) of a two-dimensional optical code, which combined polarization and wavelength scheme (p/w). This technique employed in order to increase the number of users in the FTTH network. In addition, Optical Fiber Systems (OFS) and Free Space Optics (FSO) scenarios were utilized with different Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) codes. The FTTH network based on incoherent SAC-OCDMA is tested by using the One and Two Dimensional Multi-Diagonal (1D-MD, 2D-MD) codes and 1D and 2D Zero Cross Correlation (ZCC) codes. The results show that the number of the total supported homes for the 2D codes is doubled as a comparison with 1D codes. As well as, the simulation results show the performance of MD code is better presented than ZCC in both OFS and FSO scenarios.

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Section: Introductionmentioning

confidence: 93%

“…Let Ck(i) is number of kth sequence of matrix of a code, where direct detection technique is used for a code properties and they are expressed as [4]:…”

Section: One-dimensional Ocdma Designmentioning

confidence: 99%

Evaluation Performance of Two-Dimensional Multi-Diagonal Code Using Polarization and Wavelength of OCDMA System

Dhaam

Ali

Wadday

2020

Al-Furat Journal of Innovations in Electronics and Computer Engineering

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New Structure of CCR with an AOANN Threshold

Rabehi

Djebbari

Hafaifa

et al. 2018

Journal of Optical Communications

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In this paper, artificial neural network-based adaptive optimal threshold estimation for a two-dimensional optical code division multiple access conventional correlation receiver is proposed. A multilayer perceptron neural network with back-propagation learning algorithm is considered. This estimator uses the weight (w) and the length (F) of the code word, the number of active users (Ν) and the signal to noise ratio as inputs to estimate the required optimal threshold. We have evaluated the proposed approach on a data set of 46,200 samples. We have found that it gives accurate results: 0.029 for the root mean square error, 0.37% for the relative root mean square error and 99.984% for the correlation coefficient (R), which reflects the efficiency of the proposed optimal threshold estimator.

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Enhanced Performances of W/S SAC-OCDMA System Using LDPC Code

Bouarfa

Kandouci

Bojanić

2019

Journal of Optical Communications

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In an incoherent optical code division multiple access (OCDMA) system using amplitude spectral coding (SAC), which exceeds 1.5 Gbps, it is difficult or impossible to make a transmission with a bit error rate better than 10–9. For this, it is necessary to associate an error correction code (ECC) to the SAC-OCDMA system. In this paper, we proposed an architecture of a two-dimensional SAC-OCDMA system (spectral (w) and spatial (s)) using multi-diagonal code (MD) as spreading code and low-density parity check code (LDPC) as ECC. According to the properties of the MD code and the proposed architecture, the phase induced intensity noise is eliminated, which has improved the performance of the system. The theoretically results shows that LDPC/2D-SAC-OCDMA allowing more than 40 users to be multiplexed compared to a non-coded 2D SAC-OCDMA system. This combination allowed us to increase the cardinality of the LDPC/SAC-OCDMA (W/S) system without using an optical hard limiter.

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PIIN Cancellation Using a Novel Receiving Architecture for Spectral/Spatial SAC-OCDMA System

Cited by 8 publications

References 10 publications

Evaluation Performance of Two-Dimensional Multi-Diagonal Code Using Polarization and Wavelength of OCDMA System

Evaluation Performance of Two-Dimensional Multi-Diagonal Code Using Polarization and Wavelength of OCDMA System

New Structure of CCR with an AOANN Threshold

Enhanced Performances of W/S SAC-OCDMA System Using LDPC Code

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