12 0

Uplink NOMA Random Access for UAV-Assisted Communications

Title
Uplink NOMA Random Access for UAV-Assisted Communications
Author
Hu Jin
Keywords
Non-orthogonal multiple access; unmanned aerial vehicle; stability
Issue Date
2019-08
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v. 68, No. 8, Page. 8289-8293
Abstract
This correspondence paper investigates uplink nonorthogonal multiple access (NOMA) for unmanned aerial vehicle base stations (UAV-BSs). Users under the service area of a UAV-BS perform NOMA random access (RA) by controlling their transmit power so that the UAV-BS can receive one of two predefined power levels. This facilitates successive interference cancellation (SIC) at the UAV-BS. This correspondence paper shows the maximum stable throughput of uplink NOMA RA in terms of the altitude and beam width of the UAV-BS. Further, we propose a stabilizing algorithm, with which a UAV-BS broadcasts the throughput-maximal retransmission probability every slot, while users access the channel based on the retransmission probability. Extensive simulations show that the proposed algorithm can achieve the maximum throughput 0.5869 (packets/slot) and stabilize the system with time-varying traffic.
URI
https://ieeexplore.ieee.org/document/8737946http://repository.hanyang.ac.kr/handle/20.500.11754/117857
ISSN
0018-9545; 1939-9359
DOI
10.1109/TVT.2019.2923441
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE