TY - JOUR
T1 - Resource Allocation for Multi-UAV Aided IoT NOMA Uplink Transmission Systems
AU - Duan, Ruiyang
AU - Wang, Jingjing
AU - Jiang, Chunxiao
AU - Yao, Haipeng
AU - Ren, Yong
AU - Qian, Yi
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Unmanned aerial vehicle (UAV) communication is a promising technology for Internet of Things (IoT) systems. In this paper, we combine UAV communication and nonorthogonal multiple access (NOMA) for constructing high capacity IoT uplink transmission systems, where UAVs are used as aerial base stations for collecting data from IoT nodes while NOMA is invoked for uplink transmission. We aim to maximize the system capacity by jointly optimize the subchannel assignment, the uplink transmit power of IoT nodes, and the flying heights of UAVs. We commence by proposing an efficient subchannel assignment algorithm relying on the classic {K} -means clustering method and matching theory. Then, we determine both the distributed uplink transmit power of IoT nodes and flying heights of UAVs based on successive optimization approach. An alternative optimization algorithm is also proposed for finding the near-optimal solutions. Finally, the numerical results demonstrate the superiority of our proposed scheme.
AB - Unmanned aerial vehicle (UAV) communication is a promising technology for Internet of Things (IoT) systems. In this paper, we combine UAV communication and nonorthogonal multiple access (NOMA) for constructing high capacity IoT uplink transmission systems, where UAVs are used as aerial base stations for collecting data from IoT nodes while NOMA is invoked for uplink transmission. We aim to maximize the system capacity by jointly optimize the subchannel assignment, the uplink transmit power of IoT nodes, and the flying heights of UAVs. We commence by proposing an efficient subchannel assignment algorithm relying on the classic {K} -means clustering method and matching theory. Then, we determine both the distributed uplink transmit power of IoT nodes and flying heights of UAVs based on successive optimization approach. An alternative optimization algorithm is also proposed for finding the near-optimal solutions. Finally, the numerical results demonstrate the superiority of our proposed scheme.
KW - Internet of Things (IoT)
KW - nonorthogonal multiple access (NOMA)
KW - resource allocation
KW - unmanned aerial vehicle (UAV) communication
KW - uplink transmission
UR - https://www.scopus.com/pages/publications/85070211385
U2 - 10.1109/JIOT.2019.2913473
DO - 10.1109/JIOT.2019.2913473
M3 - 文章
AN - SCOPUS:85070211385
SN - 2327-4662
VL - 6
SP - 7025
EP - 7037
JO - IEEE Internet of Things Journal
JF - IEEE Internet of Things Journal
IS - 4
M1 - 8700188
ER -