Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
R. KAUR1,* , R. S. KALER1
In this paper, performance investigation of multilevel dual polarization-based modulation is addressed in optical wireless communication system for security enhancement. The proposed system investigates different codes such as DDW code, MD code and ZCCRW code and compares their performance on the basis of distance and receiver pointing error angle. This system uses Optical code division multiple access code to improve security, data rates and minimize multiple access interference. Results revealed that out of the three codes, ZCCRW code shows better performance using multilevel dual polarization modulation followed by DDW and MD code. It provides quality factor of 29 and minimum BER of 10-160 at the distance of 25000 km. Also, performance has been evaluated on the basis of receiver pointing errors. It is observed that ZCCRW code shows quality factor of 27 and BER of 10-160 followed by 10 and 8 quality factors of DDW and MD code respectively. The receiver optical power 7 dBm for a distance of 15000 km and as the pointing error increases form 1.1 µrad to 2.5 µrad, the ROP ranges from 3 dBm to 1 dBm.
ZCCRW, MD, DDW, IS-OWC, BER, Q-factor, OCDMA, MDM.
R. KAUR, R. S. KALER, Performance analysis of multilevel dual polarization OCDMA based modulation using different codes in MDM-OWC system, Optoelectronics and Advanced Materials - Rapid Communications, 17, 1-2, January-February 2023, pp.38-43 (2023).
Submitted at: July 21, 2022
Accepted at: Feb. 6, 2023
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.