UAV-assisted wireless powered relay networks with cyclical NOMA-TDMA

Zoran Hadži-Velkov; Slavche Pejoski; Nikola Zlatanov; Robert Schobert

doi:10.1109/LWC.2020.3013296

UAV-assisted wireless powered relay networks with cyclical NOMA-TDMA

Zoran Hadži-Velkov, Slavche Pejoski, Nikola Zlatanov, Robert Schobert

Electrical and Computer Systems Engineering

Research output: Contribution to journal › Article › Research › peer-review

21 Citations (Scopus)

Abstract

We optimize the performance of an unmanned aerial vehicle (UAV)-assisted wireless powered relay network (WPRN), where the UAV is used as a radio-frequency (RF) power transmitter and as a communication relay between energy harvesting users (EHUs) and a base station (BS). The EHUs are assigned to radial service sectors, centered around the base station (BS), and employ a combination of non-orthogonal multiple access (NOMA) and time-division multiple access (TDMA), referred to as cyclical NOMA-TDMA, for multiple access. For performance optimization, maximization of the sum rate in all service sectors and maximization of the minimal sum rate per service sector are considered, and the optimal radii of the UAV's circular trajectory and the optimal allocation of the UAV's transmit power across the service sectors are determined.

Original language	English
Pages (from-to)	2088-2092
Number of pages	5
Journal	IEEE Wireless Communications Letters
Volume	9
Issue number	12
DOIs	https://doi.org/10.1109/LWC.2020.3013296
Publication status	Published - Dec 2020

Keywords

multiple access techniques
relaying
unmanned aerial vehicles
Wireless power transfer

Access to Document

10.1109/LWC.2020.3013296

Cite this

@article{bb0875c04e414452b065b6990381e1dc,

title = "UAV-assisted wireless powered relay networks with cyclical NOMA-TDMA",

abstract = "We optimize the performance of an unmanned aerial vehicle (UAV)-assisted wireless powered relay network (WPRN), where the UAV is used as a radio-frequency (RF) power transmitter and as a communication relay between energy harvesting users (EHUs) and a base station (BS). The EHUs are assigned to radial service sectors, centered around the base station (BS), and employ a combination of non-orthogonal multiple access (NOMA) and time-division multiple access (TDMA), referred to as cyclical NOMA-TDMA, for multiple access. For performance optimization, maximization of the sum rate in all service sectors and maximization of the minimal sum rate per service sector are considered, and the optimal radii of the UAV's circular trajectory and the optimal allocation of the UAV's transmit power across the service sectors are determined. ",

keywords = "multiple access techniques, relaying, unmanned aerial vehicles, Wireless power transfer",

author = "Zoran Had{\v z}i-Velkov and Slavche Pejoski and Nikola Zlatanov and Robert Schobert",

year = "2020",

month = dec,

doi = "10.1109/LWC.2020.3013296",

language = "English",

volume = "9",

pages = "2088--2092",

journal = "IEEE Wireless Communications Letters",

issn = "2162-2337",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

number = "12",

}

TY - JOUR

T1 - UAV-assisted wireless powered relay networks with cyclical NOMA-TDMA

AU - Hadži-Velkov, Zoran

AU - Pejoski, Slavche

AU - Zlatanov, Nikola

AU - Schobert, Robert

PY - 2020/12

Y1 - 2020/12

N2 - We optimize the performance of an unmanned aerial vehicle (UAV)-assisted wireless powered relay network (WPRN), where the UAV is used as a radio-frequency (RF) power transmitter and as a communication relay between energy harvesting users (EHUs) and a base station (BS). The EHUs are assigned to radial service sectors, centered around the base station (BS), and employ a combination of non-orthogonal multiple access (NOMA) and time-division multiple access (TDMA), referred to as cyclical NOMA-TDMA, for multiple access. For performance optimization, maximization of the sum rate in all service sectors and maximization of the minimal sum rate per service sector are considered, and the optimal radii of the UAV's circular trajectory and the optimal allocation of the UAV's transmit power across the service sectors are determined.

AB - We optimize the performance of an unmanned aerial vehicle (UAV)-assisted wireless powered relay network (WPRN), where the UAV is used as a radio-frequency (RF) power transmitter and as a communication relay between energy harvesting users (EHUs) and a base station (BS). The EHUs are assigned to radial service sectors, centered around the base station (BS), and employ a combination of non-orthogonal multiple access (NOMA) and time-division multiple access (TDMA), referred to as cyclical NOMA-TDMA, for multiple access. For performance optimization, maximization of the sum rate in all service sectors and maximization of the minimal sum rate per service sector are considered, and the optimal radii of the UAV's circular trajectory and the optimal allocation of the UAV's transmit power across the service sectors are determined.

KW - multiple access techniques

KW - relaying

KW - unmanned aerial vehicles

KW - Wireless power transfer

UR - https://www.scopus.com/pages/publications/85097712770

U2 - 10.1109/LWC.2020.3013296

DO - 10.1109/LWC.2020.3013296

M3 - Article

AN - SCOPUS:85097712770

SN - 2162-2337

VL - 9

SP - 2088

EP - 2092

JO - IEEE Wireless Communications Letters

JF - IEEE Wireless Communications Letters

IS - 12

ER -

UAV-assisted wireless powered relay networks with cyclical NOMA-TDMA

Abstract

Keywords

Access to Document

Other files and links

Cite this