无人机通信中基于短包传输的能/谱效折中优化

doi:10.12305/j.issn.1001-506X.2023.09.36

Abstract

Abstract:

In the cognitive internet of things (IoT) network, the trade-off between spectral efficiency (SE) and energy efficiency (EE) attract much attention in the unmanned aerial vehicle (UAV)-assisted communication system. In UAV communication network, short packet transmission is studied under the requirement of low latency and ultra-reliable. Compared with traditional cognitive networks, the communication based on short packet communication (SPC) has the packet error rate that cannot be ignored. By researching the effects of packet error rate, sensing time and transmission power on EE and SE, it is proved that the maximum value of SE and EE with respect to sensing time and transmission power cannot be obtained simultaneously. Then, an efficient combination optimization algorithm is proposed to maximize the trade-off between SE and EE. Numerical and simulation results show that the correctness of the theoretical analysis, and verify the effectiveness of the proposed algorithm.

Key words: unmanned aerial vehicle (UAV), cognitive, short packet communication (SPC), spectrum efficiency (SE), energy efficiency (EE)

CLC Number:

TN924

Huizhu HAN, Yangchao HUANG, Hang HU, Qi AN, Shihao LIU. Energy-spectrum efficiency trade-off optimization based on short packet transmission in UAV communication[J]. Systems Engineering and Electronics, 2023, 45(9): 2956-2964.

Figures/Tables 9

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参数名称	数值
UAV接收SNR/dB	-10
旋翼半径/m	0.2
全速飞行功率/W	5
飞行速度/(m/s)	10
飞行高度/m	100
PU发射功率/W	10
重力加速度/(m/s²)	9.8
飞行半径/m	700
UAV重量/kg	0.5
旋翼数量	4
噪声方差/dBm	-150
目标检测概率	0.9
采样频率/MHz	6
感知功率/W	0.4
PU存在概率	0.8
光速/(m/s)	3×10⁸

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Energy-spectrum efficiency trade-off optimization based on short packet transmission in UAV communication

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