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Open AccessArticle

A New Green Prospective of Non-orthogonal Multiple Access (NOMA) for 5G

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Centre for Telecommunication Research, Faculty of Engineering, Sri Lanka Technological Campus, Padukka 11500, Sri Lanka
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School of Computer Science and Robotics, Research Tomsk Polytechnic University, Tomsk 634050, Russia
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ISTD Pillar, Singapore University of Technology and Design (SUTD), Singapore 487372, Singapore
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ECE Department, The LNM Institute of Information Technology, Jaipur 302031, India
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ECE Department, National Institute of Technology Tiruchirappalli, 620015 Tamilnadu, India
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DISC/FEMTO-ST, University Bourgogne Franche-Comté, 25200 Montbéliard, France
*
Author to whom correspondence should be addressed.
Information 2020, 11(2), 89; https://doi.org/10.3390/info11020089
Received: 31 December 2019 / Revised: 2 February 2020 / Accepted: 4 February 2020 / Published: 7 February 2020
(This article belongs to the Special Issue 10th Anniversary of Information—Emerging Research Challenges)
Energy efficiency is a major concern in the emerging mobile cellular wireless networks since massive connectivity is to be expected with high energy requirements from the network operators. Non-orthogonal multiple access (NOMA) being the frontier multiple access scheme for 5G, there exists numerous research attempts on enhancing the energy efficiency of NOMA enabled wireless networks while maintaining its outstanding performance metrics such as high throughput, data rates and capacity maximized optimally.The concept of green NOMA is introduced in a generalized manner to identify the energy efficient NOMA schemes. These schemes will result in an optimal scenario in which the energy generated for communication is managed sustainably. Hence, the effect on the environment, economy, living beings, etc is minimized. The recent research developments are classified for a better understanding of areas which are lacking attention and needs further improvement. Also, the performance comparison of energy efficient, NOMA schemes against conventional NOMA is presented. Finally, challenges and emerging research trends, for energy efficient NOMA are discussed.
Keywords: energy efficiency; energy harvesting; green communication; interference cancellation; non orthogonal multiple access; optimization; simultaneous wireless information and power transfer; 5G energy efficiency; energy harvesting; green communication; interference cancellation; non orthogonal multiple access; optimization; simultaneous wireless information and power transfer; 5G
MDPI and ACS Style

Basnayake, V.; Jayakody, D.N.K.; Sharma, V.; Sharma, N.; Muthuchidambaranathan, P.; Mabed, H. A New Green Prospective of Non-orthogonal Multiple Access (NOMA) for 5G. Information 2020, 11, 89.

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