基于无人机的物联网空基中继鲁棒优化

doi:10.11959/j.issn.2096-3750.2022.00261

Abstract

Abstract:

Faced with the need of key regional information transmission in the emergency situation where the perception network lacks of ground base stations, considered about the uncertainty of spatial positioning of emergency internet of things (eIoT) nodes, a robust optimization method for air-based relay of eIoT based on unmanned aerial vehicle (UAV) was proposed.Firstly, the system modeling of this kind of eIoT was carried out.Secondly, according to the fact that the non-convex and nonlinear model has a great correlation with the positioning accuracy of the ground-based eIoT equipment and the tiny disturbance of the positioning information can lead to the invalid solution of the model, the system model was relaxed and the uncertainty description of the location data of the eIoT equipment was introduced, Then the robust equivalent model of the low altitude UAV relay communication power optimization problem was obtained.Thirdly, the model solving algorithm was given.Finally, the effectiveness and robustness of the proposed method were verified from the deployment of UAV and communication energy consumption.At the same time, the factors effecting the effectiveness of the proposed method were analyzed.

Key words: public security, emergency internet of things, UAV, air-based relay, robustness

CLC Number:

TP393

Wei WANG, Renqian GU, Li3 PENG, Jijun ZHAO, Zhongcheng WEI, Cunxi CHANG. Robust optimization of air based relay for internet of things based on UAV[J]. Chinese Journal on Internet of Things, 2022, 6(1): 101-112.

Figures/Tables 8

References 28

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参数	描述	值
L	物联网设备数量	60～200
f_c	载波频率	2 GHz
v ^t_j	UAV的速度	(5,5,0.5) m/s
δ	误码率	10^-8
ε	视距通信概率	0.95
N₀	噪声功率谱密度	-170 dBm/Hz
R_b	数据传输速率	200 kbit/s
B	传输带宽	200 kHz
η	附加路径损耗	5 dB
ψ	环境参数 1	11.95
β	环境参数 2	0.14

Robust optimization of air based relay for internet of things based on UAV

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