UAV-Assisted Wireless Powered Relay Networks With Cyclical NOMA-TDMA

被引：12

作者：

Hadzi-Velkov, Zoran ^{[1
]}

Pejoski, Slavche ^{[1
]}

Zlatanov, Nikola ^{[2
]}

Schober, Robert ^{[3
]}

机构：

[1] Ss Cyril & Methodius Univ, Fac Elect Engn & Informat Technol, Skopje 1000, North Macedonia

[2] Monash Univ, Dept Elect & Comp Syst Engn, Clayton, Vic 3800, Australia

[3] Friedrich Alexander Univ Erlangen Nurnberg, Inst Digital Commun, D-91058 Erlangen, Germany

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 12期

基金：

澳大利亚研究理事会;

关键词：

Time division multiple access; Relays; Radio frequency; Trajectory; Wireless communication; Unmanned aerial vehicles; NOMA; Wireless power transfer; relaying; multiple access techniques; unmanned aerial vehicles; TRAJECTORY DESIGN; COMMUNICATION;

D O I：

10.1109/LWC.2020.3013296

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：2088 / 2092

页数：5

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