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Open AccessArticle

WON-OCDMA System Based on MW-ZCC Codes for Applications in Optical Wireless Sensor Networks

1
Faculty of Engineering, University of Strathclyde, Glasgow G1 1XQ, UK
2
TBA Group, 2623 AP Delft, The Netherlands
3
Faculty of Electrical Engineering and Information Technology, University of Žilina, 010 26 Žilina, Slovakia
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(2), 539; https://doi.org/10.3390/s21020539
Received: 28 November 2020 / Revised: 8 January 2021 / Accepted: 11 January 2021 / Published: 13 January 2021
(This article belongs to the Special Issue Smart Sensor Technologies for IoT)
The growing demand for extensive and reliable structural health monitoring resulted in the development of advanced optical sensing systems (OSS) that in conjunction with wireless optical networks (WON) are capable of extending the reach of optical sensing to places where fibre provision is not feasible. To support this effort, the paper proposes a new type of a variable weight code called multiweight zero cross-correlation (MW-ZCC) code for its application in wireless optical networks based optical code division multiple access (WON-OCDMA). The code provides improved quality of service (QoS) and better support for simultaneous transmission of video surveillance, comms and sensor data by reducing the impact of multiple access interference (MAI). The MW-ZCC code’s power of two code-weight properties provide enhanced support for the needed service differentiation provisioning. The performance of this novel code has been studied by simulations. This investigation revealed that for a minimum allowable bit error rate of 103, 109 and 1012 when supporting triple-play services (sensing, datacomms and video surveillance, respectively), the proposed WON-OCDMA using MW-ZCC codes could support up to 32 simultaneous services over transmission distances up to 32 km in the presence of moderate atmospheric turbulence. View Full-Text
Keywords: optical sensors; vibration sensing; quality of service differentiation; wireless optical networks; free space optics; multiwavelength laser; optical code division multiple access (OCDMA) optical sensors; vibration sensing; quality of service differentiation; wireless optical networks; free space optics; multiwavelength laser; optical code division multiple access (OCDMA)
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MDPI and ACS Style

Seyedzadeh, S.; Agapiou, A.; Moghaddasi, M.; Dado, M.; Glesk, I. WON-OCDMA System Based on MW-ZCC Codes for Applications in Optical Wireless Sensor Networks. Sensors 2021, 21, 539. https://doi.org/10.3390/s21020539

AMA Style

Seyedzadeh S, Agapiou A, Moghaddasi M, Dado M, Glesk I. WON-OCDMA System Based on MW-ZCC Codes for Applications in Optical Wireless Sensor Networks. Sensors. 2021; 21(2):539. https://doi.org/10.3390/s21020539

Chicago/Turabian Style

Seyedzadeh, Saleh; Agapiou, Andrew; Moghaddasi, Majid; Dado, Milan; Glesk, Ivan. 2021. "WON-OCDMA System Based on MW-ZCC Codes for Applications in Optical Wireless Sensor Networks" Sensors 21, no. 2: 539. https://doi.org/10.3390/s21020539

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