UAV-Enabled Cooperative NOMA with Indoor- Outdoor User-Paring and SWIPT
in kappa-mu Channels
Abstract
This work presents a performance analysis on cooperative non-orthogonal
multiple accesses (C-NOMA) when assisted with energy harvesting enabled
unmanned aerial vehicle (UAV) decode-and-forward (DF) relaying. In
particular, two scenarios are considered, an outdoor-indoor one, where
the NOMA signal propagates through outdoor-to-indoor, and a conventional
outdoor scenario where the channel gains follow a k-u generalized fading
model. The objectives of this work is to analyze the downlink
performance of this C-NOMA system and derive closed-form expressions for
the outage probability (OP), ergodic capacity (EC), throughput and
energy efficiency (EE) for the users assuming imperfect successive
interference cancellation (SIC). In particular, the OP approach
considers the individual users’ rate where it is required to satisfy
certain quality of service (QoS) requirements. The results provide
insights into the considered performance metrics relative to key
parameters such as power allocation, power splitting factor, fading
parameters, and residual interference. Extensive simulations results are
presented to validate the accuracy of the derived expressions.