Performance Analysis for Drone-Assisted HetNets with Flexible Cell Association

Hongguang Sun, Xijun Wang, Chao Xu, Yan Zhang, Tony Q.S. Quek

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

Drone small cells (DSCs) are served as aerial base stations to complement the terrestrial cellular networks, in order to provide seamless wireless coverage and increased network capacity. In this paper, we study a drone-assisted downlink heterogeneous network (HetNet) consisting of a first tier of DSCs overlaid with a second tier of terrestrial small cells (TSCs), both of which operate on the same frequency band. By considering a flexible biased association policy, we develop an analytical framework to evaluate the network performance. After deriving the association probabilities, and the probability distribution functions (PDFs) of typical link length, we derive exact expressions for the per-tier and overall coverage probabilities. The proposed framework allows to quantify the impact on network performance of most important system parameters, such as the height of DSCs, the bias factor, and the base station density. In absence of interference management, our results show that very limited gains can be obtained in the dense network scenario and the improper deployment of DSCs can only degrade the coverage probability achieved by the single-tier TSC network. What's more, the unbiased cell association is shown to be optimal for the overall coverage probability in the interference-limited network regime.

原文English
主出版物標題2020 IEEE International Conference on Communications, ICC 2020 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728150895
DOIs
出版狀態Published - 2020 六月
事件2020 IEEE International Conference on Communications, ICC 2020 - Dublin, Ireland
持續時間: 2020 六月 72020 六月 11

出版系列

名字IEEE International Conference on Communications
2020-June
ISSN(列印)1550-3607

Conference

Conference2020 IEEE International Conference on Communications, ICC 2020
國家/地區Ireland
城市Dublin
期間20-06-0720-06-11

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 電氣與電子工程

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