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Journal of University of Chinese Academy of Sciences ›› 2022, Vol. 39 ›› Issue (5): 704-711.DOI: 10.7523/j.ucas.2020.0053

• Research Articles • Previous Articles     Next Articles

Throughput analysis of UAV-assisted cellular networks by Matern hardcore point processes

LIU Mengbing, QIU Ling, LIANG Xiaowen   

  1. CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei 230027, China
  • Received:2020-08-10 Revised:2020-11-25 Online:2022-09-15

Abstract: Unmanned aerial vehicles (UAVs) have been expected to coexist with conventional terrestrial cellular networks and become an important component to support high rate transmissions. This paper presents an analytical framework for evaluating the throughput performance of a downlink two-tier heterogeneous network. The locations of terrestrial base stations (BSs) are modeled by Poisson point processes. Considering the minimum distance constraint among UAVs, Matern hardcore point processes is utilized to model the locations of UAVs. Tools of stochastic geometry are invoked to derive more tractable expressions for average data rates of users. With the analytical results, we discuss the optimal combinations of UAVs' height and power control factor. The result shows that an appropriate power control factor can effectively maximize UAV users' average data rate as well as guaranteeing the BS users' performance under our proposed model.

Key words: unmanned aerial vehicles, Matern hardcore point processes, average data rate, stochastic geometry

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