NDLI: Joint relay selection and power allocation for NOMA-based multicast cognitive radio networks

Content Provider	IET Digital Library
Author	Baidas, Mohammed W. Alsusa, Emad Hamdi, Khairi A.
Abstract	In this study, the problem of joint relay selection and power allocation (J-RS-PA) for NOMA-based multicast cognitive radio networks is considered. In particular, the aim is to simultaneously maximise the end-to-end SINR/SNR of the primary and secondary transmitter–receiver (TR) pairs, subject to quality-of-service (QoS) constraints. Communication between the primary and secondary TR pairs is performed over two-phases, namely, the broadcasting phase, and the cooperation phase. In the broadcasting phase, the primary and secondary transmitters broadcast their data symbols; while in the cooperation phase, the selected relay forwards the decoded symbols to their intended receivers. However, the formulated J-RS-PA problem happens to be non-convex, resulting in computationally-prohibitive complexity. Consequently, an optimal low-complexity two-stage relay selection and power allocation (TS-RS-PA) algorithm is devised, which is based on the solution of linear programming problem reformulations. Simulation results are presented to validate the proposed TS-RS-PA algorithm, which is shown to yield the optimal SINR/SNR values in comparison to the J-RS-PA scheme, but with lower computational complexity, while satisfying QoS constraints.
Starting Page	2027
Ending Page	2037
Page Count	11
ISSN	17518628
Volume Number	14
e-ISSN	17518636
Issue Number	Issue 13, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/14/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0954
Journal	IET Communications
Publisher Date	2020-04-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Broadcasting Phase Cognitive Radio Computational Complexity Computationally-prohibitive Complexity Concave Programming Cooperation Phase Cooperative Communication End-to-end SINR Maximisation End-to-end SNR Maximisation J-RS-PA Problem Joint Relay Selection And Power Allocation Linear Programming Linear Programming Problem Multi-access System Multicast Communication Multiple Access Communication NOMA-based Multicast Cognitive Radio Network Nonconvex Problem Optimal Low-complexity Two-stage Relay Selection And Power Allocation Algorithm Optimisation Technique Primary TR Pairs Primary Transmitters QoS Constraint Quality of Service Quality-of-service Constraint Radio Link And Equipment Radio Receiver Radio Transmitters Relay Network Secondary TR Pairs Secondary Transmitters Telecommunication Telecommunication Power Management Transmitter-receiver Pairs TS-RS-PA Algorithm
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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