TY - JOUR
T1 - Ultra-reliable and low-latency communications in unmanned aerial vehicle communication systems
AU - She, Changyang
AU - Liu, Chenxi
AU - Quek, Tony Q.S.
AU - Yang, Chenyang
AU - Li, Yonghui
N1 - Funding Information:
Manuscript received September 1, 2018; revised December 2, 2018; accepted January 20, 2019. Date of publication January 31, 2019; date of current version May 15, 2019. This work was supported in part by the Australian Research Council under Grant DP150104019 and DP190101988, in part by the National Natural Science Foundation of China under Grant No. 61671074, in part by the Fundamental Research Funds for the Central Universities under Grant No. 2018XKJC01, in part by the SUTD-ZJU Research Collaboration under Grant SUTD-ZJU/RES/01/2016 and SUTD-ZJU/RES/05/2016, and in part by the National Natural Science Foundation of China under Grant No. 61731002. This paper was presented in part at the workshops in the IEEE International Communications Conference 2018 [1]. The associate editor coordinating the review of this paper and approving it for publication was L. Wei. (Corresponding author: Chenxi Liu.) C. She was with the Information Systems Technology and Design Pillar, Singapore University of Technology and Design, Singapore 487372. He is now with the School of Electrical and Information Engineering, University of Sydney, Sydney, NSW 2006, Australia (e-mail: [email protected]).
Publisher Copyright:
© 1972-2012 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - In this paper, we establish a framework for enabling ultra-reliable and low-latency communications in the control and non-payload communications (CNPC) links of the unmanned aerial vehicle (UAV) communication systems. We first derive the available range of the CNPC links between UAVs and a ground control station. The available range is defined as the maximal horizontal communication distance within which the round-Trip delay and the overall packet loss probability can be ensured with a required probability. To exploit the macro-diversity gain of the distributed multi-Antenna systems (DAS) and the array gain of the centralized multi-Antenna systems (CAS), we consider a modified DAS (M-DAS), where the ground control station is equipped with the distributed access points (APs), and each AP can have multiple antennas. We then show that the available range can be maximized by judiciously optimizing the altitude of UAVs, the duration of the uplink and downlink phases, and the antenna configuration. To solve the non-convex problem, we propose an algorithm that can converge to the optimal solution in DAS and CAS, and then extend it into more general M-DAS. The simulation and numerical results validate our analysis and show that the available range of M-DAS can be significantly larger than those of the DAS and CAS.
AB - In this paper, we establish a framework for enabling ultra-reliable and low-latency communications in the control and non-payload communications (CNPC) links of the unmanned aerial vehicle (UAV) communication systems. We first derive the available range of the CNPC links between UAVs and a ground control station. The available range is defined as the maximal horizontal communication distance within which the round-Trip delay and the overall packet loss probability can be ensured with a required probability. To exploit the macro-diversity gain of the distributed multi-Antenna systems (DAS) and the array gain of the centralized multi-Antenna systems (CAS), we consider a modified DAS (M-DAS), where the ground control station is equipped with the distributed access points (APs), and each AP can have multiple antennas. We then show that the available range can be maximized by judiciously optimizing the altitude of UAVs, the duration of the uplink and downlink phases, and the antenna configuration. To solve the non-convex problem, we propose an algorithm that can converge to the optimal solution in DAS and CAS, and then extend it into more general M-DAS. The simulation and numerical results validate our analysis and show that the available range of M-DAS can be significantly larger than those of the DAS and CAS.
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U2 - 10.1109/TCOMM.2019.2896184
DO - 10.1109/TCOMM.2019.2896184
M3 - Article
AN - SCOPUS:85065877504
SN - 0090-6778
VL - 67
SP - 3768
EP - 3781
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 5
M1 - 8630650
ER -