Resource Allocation in Full-Duplex UAV Enabled Multismall Cell Networks
Autor: | Zhaohui Yang, Seyed Ali Ghorashi, Mohammad Shikh-Bahaei, Amirhosein Hajihoseini Gazestani |
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Rok vydání: | 2022 |
Předmět: |
Optimization problem
Computer Networks and Communications Wireless network Computer science Reliability (computer networking) Real-time computing 020206 networking & telecommunications 02 engineering and technology Base station Transmission (telecommunications) 0202 electrical engineering electronic engineering information engineering Resource allocation Network performance Small cell Electrical and Electronic Engineering Convex function Software |
Zdroj: | IEEE Transactions on Mobile Computing. 21:1049-1060 |
ISSN: | 2161-9875 1536-1233 |
DOI: | 10.1109/tmc.2020.3017137 |
Popis: | Flying platforms such as Unmanned Aerial Vehicles (UAVs) are a promising solution for future small cell networks. UAVs can be used as aerial Base Stations (BSs) to enhance coverage, capacity and reliability of wireless networks. Also, with recent advances of Self Interference Cancellation (SIC) techniques in Full-Duplex (FD) systems, practical implementation of FD BSs is feasible. In this paper, we investigate the problem of resource allocation for multi-small cell networks with FD-UAVs as aerial BSs with imperfect SIC. We consider three different scenarios: a) maximizing the DL sum-rate, b) maximizing the UL sum-rate, and finally c) maximizing the sum of UL and DL sum-rates. The aforementioned problems result in non-convex optimization problems, therefore, successive convex approximation algorithms are developed by leveraging D.C. (Difference of Convex functions) programming to find sub-optimal solutions. Simulation results illustrated validity and effectiveness of the proposed radio resource management algorithms in comparison with ground BSs, in both FD mode and its half-duplex (HD) counterpart. The results also indicate those situations where using aerial BS is advantageous over ground BS and reveal how FD transmission enhances the network performance in comparison with HD one. |
Databáze: | OpenAIRE |
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