Performance of Hybrid OCDMA/WDM Scheme under DPSK and QPSK Modulation Using Spectral Direct Detection Technique for Optical Communication Networks

被引：0

作者：

Ahmed N. ^{[1
]}

Rashid M.A. ^{[1
]}

机构：

[1] School of Engineering and Advanced Technology, Massey University Auckland, Auckland

来源：

J Opt Commun | 2022年 / 1卷 / 57-61期

关键词：

bit error rate; differential phase shift keying; modified double weight code; quadrature phase shift keying; spectral direct detection;

D O I：

10.1515/joc-2018-0180

中图分类号：

学科分类号：

摘要：

The hybrid optical code-division multiple-access over wavelength-division multiplexing (OCDMA/WDM) scheme has attractive features of supporting system reach, multi Gbps data rates, security, and robustness for optical communication networks. This paper presents the performance of such scheme under DPSK and QPSK modulation formats using spectral direct detection technique. The modified double weight (MDW) code is used as spectral amplitude coding which also acts as a signature address code for the OCDMA system. The MDW code has the advantage of reducing the multiple access interference (MAI) and enhancing the security of the proposed hybrid system. The study focuses on the comparison between the two advanced modulation techniques (DPSK, QPSK) using spectral direct detection. Simulation results show bit-error-rate (BER) ≤10-09 for up to 25 km distance at the bit rate of 1 Gbps for optical communication networks. © 2018 Walter de Gruyter GmbH, Berlin/Boston.

引用

页码：57 / 61

页数：4

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