Maximized fairness for NOMA based drone communication system

Abstract

The future wireless communication networks demand the ability to provide tailored services on whenever and wherever basis. The Drone Small Cells (DSCs) provide unique opportunity to cater for such demands thanks to cost efficient robust and quick deployment. Non-Orthogonal Multiple Access scheme with its share of benefits such as spectral efficiency, balanced, and simultaneous multiple user access, is proposed as an ideal candidate for future DSCs. Among many challenges faced by this merger, this paper exploits the extra degrees of freedom of mobility of the drone-Base Station and formulate the problem of user-fairness maximization as a function of drone's altitude under individual rate constraint when a conventional Orthogonal Multiple Access is deployed. The performance of the proposed method is proved through Jain's fairness index for different environment profiles and coverage region. The results show that NOMA not only maximizes fairness between users but also increases the sum rate of the system.