مقاله انگلیسی تخصیص برق متوسط در سیستم های شناختی مشارکت آمیز
Abstract
Keywords
Introduction
System model and problem formulation
Proposed scheme
Simulation results
Conclusion
Declaration of Competing Interest
Acknowledgment
References
Abstract
To support the massive connectivity in Internet of Things (IoT), several promising techniques like cognitive radio (CR) and non-orthogonal multiple access (NOMA) enables the user to share spectrum resources. This work aims to achieve fairness among secondary users (SUs) in IoT cooperative NOMA-based CR transmission. We design a power allocation algorithm, an independent battery constraint at each node is considered, and power gap among transmissions of twoNOMA users is applied for successive interference cancellation. The simulation results show that the proposed framework provides excellent performance and for sufficient available transmission power perfect fairness is achieved. Introduction
The use of orthogonal multiple access (OMA) systems is well known because of their excellent performance [1–3]. However, the Internet of Things (IoT) demands high spectral efficiency (SE) which the OMA systems are unable to provide [4,5]. Hence, researchers have recently been working on finding a better multiple access substitute.