On Cooperative Achievable Rates of UAV Assisted Cellular Networks SCIE SCOPUS

Cited 3 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
On Cooperative Achievable Rates of UAV Assisted Cellular Networks
Author(s)
Song, Yujae; Lim, Sung Hoon; Jeon, Sang-Woon; Baek, Seungjae
KIOST Author(s)
Baek, Seung Jae(백승재)
Publication Year
2020-09
Abstract
In this paper, we study an UAV base station (UBS) assisted cellular network that consists of a single ground macro base station (MBS), multiple UBSs, and multiple ground terminals. We assume that the MBS transmits to the UBSs and the terminals in the licensed band while the UBSs use a separate unlicensed band (e.g., Wi-Fi) to transmit to the terminals. For the utilization of the UBSs, we propose a cooperative decode–forward (DF) protocol in which multiple UBSs assist the terminals simultaneously while maintaining a predetermined interference level on the coexisting unlicensed band users. For our network setup, we formulate a joint optimization problem for minimizing the aggregate gap between the target rates and the throughputs of terminals by optimizing over the 3D positions of the UBSs and the resources (power, time, bandwidth) of the network. To solve the optimization problem, we propose an efficient nested structured algorithm based on particle swarm optimization and convex optimization methods. Extensive numerical evaluations of the proposed algorithm is performed considering various aspects to demonstrate the performance of our algorithm and the gain for utilizing UBSs.
ISSN
0018-9545
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/37593
DOI
10.1109/tvt.2020.3003301
Bibliographic Citation
IEEE Transactions on Vehicular Technology, v.69, no.9, pp.9882 - 9895, 2020
Publisher
Institute of Electrical and Electronics Engineers
Keywords
Cooperative DF; particle swarm optimization; resource allocation; UAV; unlicensed band
Type
Article
Language
English
Document Type
Article
Publisher
Institute of Electrical and Electronics Engineers
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse