Mitigating cellular interference in uplink UAV communications

Mitigating cellular interference in uplink UAV communications

In this paper, we demonstrate the necessity of robust cellular interference cancellation when co-locating uplink (UL) unmanned aerial vehicle (UAV) communications with cellular networks. Through a stochastic geometry based evaluation framework, we show through bit error rate (BER) and ergodic capaci...

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Bibliographic Details
Main Authors: Tan, Ernest Zheng Hui, Madhukumar, A.S., Sirigina, Rajendra Prasad, Krishna, Anoop Kumar
Other Authors: School of Computer Science and Engineering
Format: Conference or Workshop Item
Language:English
Published: 2021
Subjects:
Engineering::Computer science and engineering
Unmanned Aerial Vehicle
Bit Error Rate
Online Access:https://hdl.handle.net/10356/146720
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Institution: Nanyang Technological University
Language: English
Description
Summary:In this paper, we demonstrate the necessity of robust cellular interference cancellation when co-locating uplink (UL) unmanned aerial vehicle (UAV) communications with cellular networks. Through a stochastic geometry based evaluation framework, we show through bit error rate (BER) and ergodic capacity analysis that multi-user interference (MUI) is the main limiting factor in UL UAV communications after cellular interference cancellation. It is also observed that high altitudes and weak residual cellular interference corresponds to lower BER. In contrast, low altitudes and weak residual cellular interference results in higher ergodic capacity. Hence, advanced interference cancellation techniques should be considered to suppress the presence of strong MUI in the multi-UAV network.

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