Analysis of the performance of a coherent SAC-OCDMA-OFDM-DWDM system using a flat optical frequency comb generator for multiservice networks

被引：1

作者：

Fares, Abderraouf ^{[1
]}

Saouchi, Kaddour ^{[1
]}

Brik, Fatima ^{[1
]}

Djellab, Hanane ^{[2
]}

机构：

[1] Badji Mokhtar Univ, Dept Elect, LERICA Lab, Fac Engn, Annaba, Algeria

[2] 8 Mai 1945 Guelma Univ, Lab Telecommun LT, Guelma, Algeria

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2022年 / 54卷 / 09期

关键词：

Spectral amplitude coding optical code-division multiple-access; Dense wavelength division multiplexing; Orthogonal frequency division multiplexing; Flat optical frequency comb; Coherent communication; Enhanced double weight; Random diagonal; Bit error rate; MODULATION; CODE;

D O I：

10.1007/s11082-022-03966-4

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This research proposes the architecture of a SAC-OCDMA-OFDM-DWDM system using a flat optical frequency comb generator and coherent communication. Its aim is to create a new OCDMA communication system that is specifically intended for multiservice networks. The suggested architectural design is numerically simulated and analyzed using OptiSystem and MATLAB. To quantify the performance of the proposed system, SNR, EVM, and BER were used as metrics. Furthermore, a comparison between the two codes, EDW and RD, has been presented. Thus, it has been revealed that the RD code system has better performance in terms of robustness and number of users than the EDW code. Besides, by analyzing the BER for several symbol rates and comparing it to the pre-FEC threshold, the proposed system demonstrates its effectiveness against linear and nonlinear effects. The results also show that optical noise affects signal quality; the mathematical analysis used allowed us to determine the impact of noise on the number of potential active users.

引用

页数：21

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