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An Adaptive Power Allocation Scheme for Performance Improvement of Cooperative SWIPT NOMA Wireless Networks

Manimekalai Thirunavukkarasu1, Romera Joan Sparjan1, *, Laxmikandan Thangavelu1

1 College of Engineering Guindy, Anna University, Chennai, 600025, India.

* Corresponding Author: Romera Joan Sparjan. Email: email.

Computers, Materials & Continua 2020, 63(2), 1043-1064. https://doi.org/10.32604/cmc.2020.09819

Abstract

Future wireless networks demand high spectral efficiency, energy efficiency and reliability. Cooperative non-orthogonal multiple access (NOMA) with simultaneous wireless information and power transfer (SWIPT) is considered as one of the novel techniques to meet this demand. In this work, an adaptive power allocation scheme called SWIPT based adaptive power allocation (SWIPT-APA-NOMA) is proposed for a power domain NOMA network. The proposed scheme considers the receiver sensitivity of the end users while calculating the power allocation coefficients in order to prevent wastage of power allocated to user in outage and by offering priority to any one of the users to use maximum harvested power. A detailed analysis on the bit error rate (BER) performance of the proposed scheme is done and closed form expression is obtained. Simulations have been carried out with various parameters that influence the receiver sensitivity and the results show that the network achieves better outage and BER performance using the proposed scheme. It is found that the proposed scheme leads to a ten-fold decrease in transmit power for the same error performance of a fixed power allocation scheme. Further, it offers 96.06% improvement in the capacity for a cumulative noise figure and fading margin of 10 dB.

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APA Style
Thirunavukkarasu, M., Sparjan, R.J., Thangavelu, L. (2020). An adaptive power allocation scheme for performance improvement of cooperative SWIPT NOMA wireless networks. Computers, Materials & Continua, 63(2), 1043-1064. https://doi.org/10.32604/cmc.2020.09819
Vancouver Style
Thirunavukkarasu M, Sparjan RJ, Thangavelu L. An adaptive power allocation scheme for performance improvement of cooperative SWIPT NOMA wireless networks. Comput Mater Contin. 2020;63(2):1043-1064 https://doi.org/10.32604/cmc.2020.09819
IEEE Style
M. Thirunavukkarasu, R.J. Sparjan, and L. Thangavelu, “An Adaptive Power Allocation Scheme for Performance Improvement of Cooperative SWIPT NOMA Wireless Networks,” Comput. Mater. Contin., vol. 63, no. 2, pp. 1043-1064, 2020. https://doi.org/10.32604/cmc.2020.09819



cc Copyright © 2020 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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