设备接入受限的UAV空基应急物联网节点分簇部署研究

doi:10.11959/j.issn.2096-3750.2021.00220

Abstract

Abstract:

Lack of ground base station in emergency Internet of things for public security application scenarios, the unmanned aerial vehicle (UAV) as the air-based base station was adopted to solve the problem of node cluster deployment under the condition of limited access of emergency Internet of things ground terminal equipment.A clustering deployment method based on on-demand K-means (ODKM) was proposed.Firstly, base station selection and equipment clustering were carried out according to the equipment access ability of different UAV air-based base stations through two clustering steps.Secondly, by solving a relaxed non convex nonlinear optimization model, the UAV air-based base station deployment based on energy efficiency optimization was realized.The experimental results show that the proposed method can meet the constraints of UAV base station access ability, and has a good performance in balancing the transmission energy consumption of each cluster, and realizes the goal of communication energy saving when the ground terminal equipment needs to access.

Key words: emergency Internet of things, space based communication, unmanned aerial vehicle, access restriction

CLC Number:

TP393

Wei WANG, Yajing LIANG, Li PENG, Zhongcheng WEI, Jijun ZHAO. Node clustered deployment of emergency Internet of things based on UAV with equipment access restriction[J]. Chinese Journal on Internet of Things, 2021, 5(3): 97-105.

Figures/Tables 5

References 24

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参数	描述	值
L	IoT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	误码率要求	10^-8
ε	视距通信概率要求	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

Node clustered deployment of emergency Internet of things based on UAV with equipment access restriction

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