Picture of offices in the City of London

Open Access research that is better understanding work in the global economy...

Strathprints makes available scholarly Open Access content by researchers in the Department of Work, Employment & Organisation based within Strathclyde Business School.

Better understanding the nature of work and labour within the globalised political economy is a focus of the 'Work, Labour & Globalisation Research Group'. This involves researching the effects of new forms of labour, its transnational character and the gendered aspects of contemporary migration. A Scottish perspective is provided by the Scottish Centre for Employment Research (SCER). But the research specialisms of the Department of Work, Employment & Organisation go beyond this to also include front-line service work, leadership, the implications of new technologies at work, regulation of employment relations and workplace innovation.

Explore the Open Access research of the Department of Work, Employment & Organisation. Or explore all of Strathclyde's Open Access research...

Strathprints

DW-ZCC code based on SAC-OCDMA deploying multi-wavelength laser source for wireless optical networks

Moghaddasi, Majid and Seyedzadeh, Saleh and Glesk, Ivan and Lakshminarayana, Gandham and Anas, Siti Barirah Ahmad (2017) DW-ZCC code based on SAC-OCDMA deploying multi-wavelength laser source for wireless optical networks. Optical and Quantum Electronics, 49. ISSN 0306-8919

[img]
Preview
 Text (Moghaddasi-etal-OQE-2018-DW-ZCC-code-based-on-SAC-OCDMA-deploying-multi-wavelength-laser-source)
Moghaddasi_etal_OQE_2018_DW_ZCC_code_based_on_SAC_OCDMA_deploying_multi_wavelength_laser_source.pdf
Accepted Author Manuscript
Download (3MB) | Preview

Abstract

In this paper, double weight zero cross correlation (DW-ZCC) code is proposed for spectral amplitude coding optical code division multiple access (SAC OCDMA) system. DW-ZCC takes the advantages of two previously proposed SAC-codes namely modified double weight (MDW) and zero-cross correlation (ZCC) codes, while providing optimized code length and maximum cross-correlation of zero. Although the proposed code can be utilized in SAC-OCDMA system with any optical medium, this research work focuses on outdoor wireless optical networks (WON) deploying multi-wavelength laser (MWL) source, where optical bandwidth is much limited. The mathematical and simulation analysis of proposed system employing direct decoding (DD) is developed, considering the influences of turbulence and system noises including relative intensity noise, optical beat interference (OBI) and receiver noises. It is shown that employing DD detection; it is possible to completely avoid OBI which enhances system capability. The results show that SAC-OCDMA-WON system is noticeably improved using DW-ZCC in term of transmission distance by at least 200 m in comparison with MDW and conventional ZCC codes.

Item type: Article
ID code: 62174
Keywords: spectral amplitude coding, wireless optical networks, free space optics (FSO), multi-wavelength laser, optical code division multiple access (OCDMA), Electrical engineering. Electronics Nuclear engineering, Optics. Light, Electrical and Electronic Engineering, Computer Networks and Communications
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Science > Physics > Optics. Light
Department: Faculty of Engineering
Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited: 30 Oct 2017 10:39
Last modified: 07 Jan 2019 19:20
URI: https://strathprints.strath.ac.uk/id/eprint/62174
Export data:
CORE (COnnecting REpositories)