TY - JOUR
T1 - Placement and Power Allocation for NOMA-UAV Networks
AU - Liu, Xiaonan
AU - Wang, Jingjing
AU - Zhao, Nan
AU - Chen, Yunfei
AU - Zhang, Shun
AU - Ding, Zhiguo
AU - Richard Yu, F.
N1 - Funding Information:
Manuscript received December 24, 2018; revised February 18, 2019; accepted March 6, 2019. Date of publication March 8, 2019; date of current version June 19, 2019. This work was supported in part by the National Natural Science Foundation of China (NSFC) under Grant 61871065, Grant U1806201, and Grant 61871455, in part by the Open Research Fund of State Key Laboratory of Integrated Services Networks under Grant ISN19-02, and in part by the Fundamental Research Funds for the Central Universities under Grant DUT17JC43. The work of Z. Ding was supported in part by the U.K. EPSRC under Grant EP/N005597/1, and in part by NSFC under Grant 61728101, Grant H2020-MSCA-RISE-2015, and Grant 690750. The associate editor coordinating the review of this paper and approving it for publication was T. De Cola. (Corresponding author: Nan Zhao.) X. Liu and N. Zhao are with the School of Information and Communication Engineering, Dalian University of Technology, Dalian 116024, China, and also with the State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an 710071, China (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2012 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - Unmanned aerial vehicles (UAVs) can be used as flying base stations to provide ubiquitous connections for mobile devices in over-crowded areas. On the other hand, non-orthogonal multiple access (NOMA) is a promising technique to support massive connectivity. In this letter, the placement and power allocation (PA) are jointly optimized to improve the performance of the NOMA-UAV network. Since the formulated joint optimization problem is non-convex, the location of the UAV is first optimized, with the total path loss from the UAV to users minimized. Then, the PA for NOMA is optimized using the optimal location of the UAV to maximize the sum rate of the network. Simulation results are presented to show the effectiveness and efficiency of the proposed scheme for NOMA-UAV networks.
AB - Unmanned aerial vehicles (UAVs) can be used as flying base stations to provide ubiquitous connections for mobile devices in over-crowded areas. On the other hand, non-orthogonal multiple access (NOMA) is a promising technique to support massive connectivity. In this letter, the placement and power allocation (PA) are jointly optimized to improve the performance of the NOMA-UAV network. Since the formulated joint optimization problem is non-convex, the location of the UAV is first optimized, with the total path loss from the UAV to users minimized. Then, the PA for NOMA is optimized using the optimal location of the UAV to maximize the sum rate of the network. Simulation results are presented to show the effectiveness and efficiency of the proposed scheme for NOMA-UAV networks.
KW - non-orthogonal multiple access
KW - Placement optimization
KW - power allocation
KW - unmanned aerial vehicle
UR - http://www.scopus.com/inward/record.url?scp=85066030025&partnerID=8YFLogxK
U2 - 10.1109/LWC.2019.2904034
DO - 10.1109/LWC.2019.2904034
M3 - Article
AN - SCOPUS:85066030025
SN - 2162-2337
VL - 8
SP - 965
EP - 968
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 3
M1 - 8663350
ER -