TY - JOUR
T1 - UAV-Aided Multi-Way NOMA Networks with Residual Hardware Impairments
AU - Li, Xingwang
AU - Wang, Qunshu
AU - Liu, Yuanwei
AU - Tsiftsis, Theodoros A.
AU - Ding, Zhiguo
AU - Nallanathan, Arumugam
N1 - Funding Information:
Manuscript received April 15, 2020; revised May 17, 2020; accepted May 19, 2020. Date of publication May 22, 2020; date of current version September 9, 2020. This work was supported in part by the Henan Scientific and Technological Research Project under Grant 182102210307, in part by the Fundamental Research Funds for the Universities of Henan Province under Grant NSFRF180309, in part by the Outstanding Youth Science Foundation of Henan Polytechnic University under Grant J2019-4, and in part by the Key Scientific Research Projects of Higher Education Institutions in Henan Province under Grant 20A510007. The associate editor coordinating the review of this article and approving it for publication was W. Wang. (Corresponding author: Xingwang Li.) Xingwang Li and Qunshu Wang are with the School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2012 IEEE.
PY - 2020/9
Y1 - 2020/9
N2 - In this letter, we study an unmanned aerial vehicle (UAV)-aided non-orthogonal multiple access (NOMA) multi-way relaying networks (MWRNs). Multiple terrestrial users aim to exchange their mutual information via an amplify-and-forward (AF) UAV relay. Specifically, the realistic assumption of the residual hardware impairments (RHIs) at the transceivers is taken into account. To evaluate the performance of the considered networks, we derive the analytical expressions for the achievable sum-rate (ASR). In addition, we carry out the asymptotic analysis by invoking the affine expansion of the ASR in terms of high signal-to-noise ratio (SNR) slope and high SNR power offset. Numerical results show that: 1) Compared with orthogonal multiple access (OMA), the proposed networks can significantly improve the ASR since it can reduce the time slots from [( {M}-1)/2] + 1 to 2; and 2) RHIs of both transmitter and receiver have the same effects on the ASR of the considered networks.
AB - In this letter, we study an unmanned aerial vehicle (UAV)-aided non-orthogonal multiple access (NOMA) multi-way relaying networks (MWRNs). Multiple terrestrial users aim to exchange their mutual information via an amplify-and-forward (AF) UAV relay. Specifically, the realistic assumption of the residual hardware impairments (RHIs) at the transceivers is taken into account. To evaluate the performance of the considered networks, we derive the analytical expressions for the achievable sum-rate (ASR). In addition, we carry out the asymptotic analysis by invoking the affine expansion of the ASR in terms of high signal-to-noise ratio (SNR) slope and high SNR power offset. Numerical results show that: 1) Compared with orthogonal multiple access (OMA), the proposed networks can significantly improve the ASR since it can reduce the time slots from [( {M}-1)/2] + 1 to 2; and 2) RHIs of both transmitter and receiver have the same effects on the ASR of the considered networks.
KW - Hardware impairments
KW - multi-way relay
KW - NOMA
KW - UAV
UR - http://www.scopus.com/inward/record.url?scp=85089337679&partnerID=8YFLogxK
U2 - 10.1109/LWC.2020.2996782
DO - 10.1109/LWC.2020.2996782
M3 - Article
AN - SCOPUS:85089337679
SN - 2162-2337
VL - 9
SP - 1538
EP - 1542
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 9
M1 - 9098862
ER -