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

被引：1

作者：

Bouarfa A. ^{[1
]}

Kandouci M. ^{[1
]}

Bojanic S. ^{[2
]}

机构：

[1] Laboratory Electromagnetic Photonics Optronics (LEPO), Djillali Liabes University, BP 89, Sidi Bel Abbès

[2] ETSI Telecomunicacion, Universidad Politecnica de Madrid, Av. Complutense 30, Madrid

来源：

Journal of Optical Communications | 2022年 / 43卷 / 01期

关键词：

low-density parity check; MD code; SAC-OCDMA; two dimensional; wavelength-spatial;

D O I：

10.1515/joc-2018-0181

中图分类号：

学科分类号：

摘要：

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. © 2019 Walter de Gruyter GmbH, Berlin/Boston.

引用

页码：129 / 136

页数：7

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