학술논문
Subchannel Assignment and Power Optimization in Caching based UAV Networks With NOMA
Document Type
Conference
Author
Source
ICC 2020 - 2020 IEEE International Conference on Communications (ICC) Communications (ICC), ICC 2020 - 2020 IEEE International Conference on. :1-6 Jun, 2020
Subject
Language
ISSN
1938-1883
Abstract
This paper intends to study the energy efficiency in caching based UAV networks, where fog radio access network (FRAN) and non-orthogonal multiple access (NOMA) are considered meanwhile. Taking full account of the impact of caching, subchannel assignment, and power allocation in UAV enabled wireless networks, we formulate the problem of maximizing energy efficiency. In order to better solve the proposed non-convex problem, we propose a subchannel assignment algorithm and a power allocation algorithm applying alternating direction method of multipliers (ADMM). The final simulation section verifies the fast convergence of the algorithm and compares the advantages with existing algorithms.