The International Arab Journal of Information Technology (IAJIT)


Maximizing the Area Spanned by the Optical SNR of the 5G Using Digital Modulators and Filters

High security data link channels having more immunity against channel noise is the need of the century. Free Space Optical communication (FSO) is the modern technology which kick-starts it’s application in inter satellite communication, underwater communication and mobile communication to the next level of data transmission by means of complete utilisation of the allocated frequency spectrum. In Europe and Asian countries, 5G optical communication will going to expand its usage to nearly 50% in upcoming years and so bandwidth and power efficiency has to be enhanced as much as possible since the consumption rate of the users is increasing exponentially. But increasing the distance increases the attenuation in case of severe atmospheric weather condition. In this paper, 5G data rate of 50Gbps is ensured for better signal reception with maximum possible link distance between the sender and the receiver keeping variable attenuation environment. The frequency of operation is 1550nm throughout the processes. In this work, several digital modulation techniques and optical filters for receiver are designed and simulated. The better resulting modulator and filter design in terms of high Quality factor and low bit error rate are considered and is integrated with each other. The Signal to Noise Ratio (SNR) and optical SNR are calculated for the integrated design theoretically. Higher the SNR less will be BER and hence the signal connectivity can be improved in the high speed free space optical communication systems.

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[23] Yang G., Khalighi M., Bourennane S., and Ghassemlooy Z., “Fading Correlation and Analytical Performance Evaluation of The Space-Diversity Free-Space Optical Communications System,” Journal of Optics, vol. 16, no. 3, pp. 035403, 2014. Guruviah Karpagarajesh is currently working as an Assistant Professor in the Department of Electronics and Communication Engineering at Government College of Engineering, Tirunelveli, Tamil Nadu, India. He has obtained B.E- ECE from P.S.N. ACollege of Engineering and Technology, Dindigul, in the year 2002.He obtained his M.E Optical Communication from ACGCET,Karaikudi, in the year 2005. He has obtained his Ph.D from Anna University, Chennai, in the year June 2017. He has 14 years of experience in the field of Teaching. His areas of interest is Optical Communication. Helen Anita is currently pursuing her M.E., in the Department of Electronics and Communication Engineering at Government College of Engineering, Tirunelveli, Tamil Nadu, India. She received her Bachelor degree in the Department of Electronics and Communication Engineering at Francis Xavier Engineering College ,Tirunelveli in the year 2016. She has published articles in various Journals including IEEE and has presented many papers in National and International Conference. She is a student member in IAENG and life time member in IJARMATE technical platform. Her areas of interest includes Optical Wireless Communication and Communication Networks.