Sum Rate DL/UL Performance of Co-operative NOMA Systems Over Weibull Fading Channel

Keywords: NOMA, FD-CNOMA, Weibull Distribution, Sum Rate Performance, DL, UL


This work evaluates the sum rate performance for dual user with full duplex co-operative non-orthogonal multiple access (FD-CNOMA) over Weibull fading channel environment. For this, we derived closed form expressions for sum-rate in various scenario in downlink and uplink both. One user always acts as decode and forward full duplex relay to help far users in each scenario. In the first scenario, no direct link exists between base station (BS) and far user. In second scenario, direct link exists between BS and far user. The main investigation is to study the effect of fading parameters in different channel condition on sum-rate performance. Since, Weibull Distribution (WD) has an advantage to model different fading condition using varying parameter it is more suitable to study impact of fading condition on different wireless techniques for next generation mobile cellular communication. Therefore, WD is used in this study for sum rate performance evaluation with derived expressions. Finally, simulations were conducted on MATLAB to evaluate the system performance under different fading parameters of Weibull fading channels .


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Author Biographies

Rampravesh Kumar, Birla Institute of Technology, Mesra, India

Rampravesh Kumar is a Research scholar under UGC-NET JRF at B.I.T, Mesra, India, pursuing Ph.D in wireless communication under the department of Electronics and Communication Engineering since spring 2017. He received his B.E in ECE from RGPV, Bhopal in 2010 and M.Tech in ECE from CMJU, Shillong in 2012. After that, he worked as NSS Engineer in Nokia Siemens Networks Pvt. Ltd. from 2012 to 2014. During 2015 to 2016, he worked as Part-time Lecturer in department of Electrical and Electronics Engineering, NCE Chandi, Bihar. His Ph.d work centers on Cooperative cognitive communication in improving the next generation cellular system performance.

Sanjay Kumar, Birla Institute of Technology, Mesra, Deoghar Campus, India

Sanjay Kumar has received MBA from Pune University in 1994, M. Tech. in Electronics and Communication Engineering from Guru Nanak Dev Engineering College, Ludhiana in 2000, and PhD in Wireless Communication from Aalborg University, Denmark in 2009. He is an Associate Professor at the Department of Electronics and Communications Engineering at Birla Institute of Technology Mesra, Deoghar Campus, India. During 2006 to 2009 he was a Guest Researcher at Aalborg University, Denmark, where he worked in close association with Nokia Siemens Networks. During 2007 to 2008 he worked as Part-time Lecturer in department of Electronic Systems, Aalborg University, Denmark. Before joining teaching and research he served the Indian Air Force from 1985 to 2000 in various technical capacities. He has nearly 35 years of teaching, research and work experience in the field of Wireless Communication. He is an Editorial Board Member of the International Journal, “Wireless Personal Communications” published by Springer.


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