基于最小能耗的多无人机无线网络安全数据卸载策略

doi:10.11959/j.issn.1000-436x.2021085

通信学报 ›› 2021, Vol. 42 ›› Issue (5): 51-62.doi: 10.11959/j.issn.1000-436x.2021085

基于最小能耗的多无人机无线网络安全数据卸载策略

崔高峰¹^,², 徐媛媛¹^,², 张尚宏¹^,², 王卫东¹^,²

¹ 北京邮电大学电子工程学院，北京 100876
² 北京邮电大学泛网无线通信教育部重点实验室，北京 100876

修回日期:2020-11-28 出版日期:2021-05-25 发布日期:2021-05-01
作者简介:崔高峰（1987- ），男，河南驻马店人，博士，北京邮电大学副教授、博士生导师，主要研究方向为空天通信、卫星通信、卫星网络资源管理
徐媛媛（1996- ），女，天津人，北京邮电大学硕士生，主要研究方向为卫星通信、卫星网络资源管理、强化学习等
张尚宏（1993- ），男，河南郑州人，北京邮电大学博士生，主要研究方向为卫星通信、卫星网络资源管理、5G通信等
王卫东（1967- ），男，内蒙古包头人，博士，北京邮电大学教授、博士生导师，主要研究方向为卫星通信、移动通信、物联网等
基金资助:
国家自然科学基金资助项目(61971054);国家自然科学基金资助项目(61601045)

Secure data offloading strategy for multi-UAV wireless networks based on minimum energy consumption

Gaofeng CUI¹^,², Yuanyuan XU¹^,², Shanghong ZHANG¹^,², Weidong WANG¹^,²

¹ School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
² Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

Revised:2020-11-28 Online:2021-05-25 Published:2021-05-01
Supported by:
The National Natural Science Foundation of China(61971054);The National Natural Science Foundation of China(61601045)

摘要/Abstract

摘要：

为了解决地面用户向多无人机边缘计算网络卸载数据时存在的地面被动窃听问题，提出了一种通过联合优化用户匹配和资源分配使系统能耗最小化的安全数据卸载策略。考虑了系统时延、通信资源、计算资源的限制，采用保密中断概率对数据卸载过程的安全性能进行约束。利用块坐标下降和连续凸近似算法联合优化用户发送功率、卸载因子、无人机计算资源分配、干扰功率，并基于成对稳定的用户匹配算法最小化无人机系统总能耗。仿真数据表明，该算法可以实现数据的安全卸载，并且在能耗、时延等性能上优于传统策略。

关键词: 物理层安全, 边缘计算, 安全数据卸载, 连续凸近似, 成对稳定

Abstract:

To solve the problems of ground passive eavesdropping when ground users offload data to the multi-UAV(unmanned aerial vehicle) edge computing network, a secure data offloading strategy that minimized system energy consumption by jointly optimizing user matching and resource allocation was proposed.Considering the constraints of system delay, communication resources and computing resources, the probability of security interruption was used to restrict the security performance of the data offload process.By using block coordinate descent and successive convex approximation algorithm, the user transmission power, offload factor, UAV computing resource allocation and jamming power were jointly optimized.A pair-wise stable user matching algorithm was proposed to minimize the total energy consumption of UAV system.Simulation results demonstrate that the algorithm can realize the safe offloading of data, and has good performance in energy consumption and delay by comparing with the conventional strategies.

Key words: physical layer security, edge computing, secure data offloading, successive convex approximation, pair-wise stable

中图分类号:

TN92

崔高峰, 徐媛媛, 张尚宏, 王卫东. 基于最小能耗的多无人机无线网络安全数据卸载策略[J]. 通信学报, 2021, 42(5): 51-62.

Gaofeng CUI, Yuanyuan XU, Shanghong ZHANG, Weidong WANG. Secure data offloading strategy for multi-UAV wireless networks based on minimum energy consumption[J]. Journal on Communications, 2021, 42(5): 51-62.

图/表 7

图1

表1

仿真参数设置"

参数	含义	数值
H /m	无人机固定悬停高度^[31]	300
G /Mbit	用户需处理总任务量	10
B/MHz	带宽^[21]	1
h₀	UAV-地面单位信道增益^[19]	1.42×10^-4
γ₀	视距信道路径衰落指数	2
h₁	用户-窃听者单位信道增益	1.42×10^-4
γ₁	非视距信道路径衰落指数	3.5
λ^{- 1}	g_s→e的期望^[19]	1
σ²/dBm	噪声功率^[6]	-100
$P_{n}^{max} / dBm$	无人机功率上限	35
$P_{S}^{max} / dBm$	用户功率上限^[21]	20
$f_{n}^{U} / MHz$	无人机计算能力	10⁴
f_s/MHz	用户计算能力	6×10³
C	1 bit数据所需CPU周期数^[21]	10³
$T_{req 1} / s$	本地计算时延上限	3
$T_{req 2} / s$	无人机计算时延上限	7
ε	保密中断概率	[0.001, 0.1]

表1

图2

图3

图4

图5

图6

参考文献 31

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基于最小能耗的多无人机无线网络安全数据卸载策略

Secure data offloading strategy for multi-UAV wireless networks based on minimum energy consumption

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