多层无人机毫米波异构网络的吞吐量研究

doi:10.19678/j.issn.1000-3428.0057906

计算机工程 ›› 2021, Vol. 47 ›› Issue (7): 176-182. doi: 10.19678/j.issn.1000-3428.0057906

多层无人机毫米波异构网络的吞吐量研究

路艺¹, 贾向东^1,2, 纪澎善¹, 吕亚平¹

1. 西北师范大学计算机科学与工程学院, 兰州 730070;
2. 南京邮电大学江苏省无线通信重点实验室, 南京 210003

收稿日期:2020-03-20 修回日期:2020-06-15 发布日期:2020-06-18
作者简介:路艺(1997-),女,硕士研究生,主研方向为大规模MIMO、毫米波通信;贾向东,教授、博士;纪澎善、吕亚平,硕士研究生。
基金资助:
国家自然科学基金（61861039）；甘肃省科技计划项目（18YF1GA060）。

Research on Throughput of UAV-Assisted Multi-Tier Millimeter-Wave Heterogeneous Networks

LU Yi¹, JIA Xiangdong^1,2, JI Pengshan¹, Lü Yaping¹

1. College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China;
2. Wireless Communication Key Lab of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Received:2020-03-20 Revised:2020-06-15 Published:2020-06-18

摘要/Abstract

摘要： 针对5G/B5G网络的热点场景中存在数据流量激增及基站与用户设备（UE）之间空间耦合的问题，构造一种基于泊松簇过程的无人机（UAV）协助的多层毫米波异构蜂窝网络模型。为提高该多层网络模型的平均区域吞吐量（AAT），提出基于最大偏置接收功率（BRP）准则的4层级联方案。借助毫米波传输模型和随机几何数学工具，通过UE级联概率及各层基站对UE干扰的拉普拉斯变换，推导出系统条件覆盖概率和AAT的数学解析表达式。研究UAV基站投影在地面上的分布方差、地面基站的密度对级联概率的影响，比较不同级联方案可获取的系统AAT。仿真结果表明，基于最大BRP准则的4层级联方案能够显著提升系统AAT，增强系统性能。

关键词: 5G/B5G网络, 无人机通信, 毫米波通信, 泊松簇过程, 平均区域吞吐量

Abstract: The hotspot scenarios of the Fifth-Generation(5G)/Beyond 5G(B5G) networks frequently encounter surges in data traffic and the problem of spatial coupling between the base stations and the User Equipment(UE).To address the problems,an Unmanned Aerial Vehicle(UAV)-assisted multi-tier millimeter-wave heterogeneous cellular network model based on Poisson Cluster Process(PCP) is constructed.With the goal of improving the Average Area Throughput(AAT) of the multi-tier networks,this paper also proposes a 4-tier association scheme based on the maximum Bias Received Power(BRP) criterion.The Laplace transform is performed on the interference from base stations at each tier on UE. Based on the transform result and the UE association probability,the mathematical analysis expression of conditional coverage probability and the AAT of the system are derived by using the mm-Wave transmission model and random geometry mathematical tools.Then the paper describes how the distribution variance of the UAV base station projections on ground and the density of ground base stations influence the association probability.The system AAT acquired by different association schemes are also compared.Simulation results show that the 4-tier association scheme based on the maximum BRP criterion can significantly improve the system AAT and enhance the system performance.

Key words: 5G/B5G networks, Unmanned Aerial Vehicle(UAV) communication, millimeter-wave communication, Poisson Cluster Process(PCP), Average Area Throughput(AAT)

中图分类号:

TN929.5

路艺, 贾向东, 纪澎善, 吕亚平. 多层无人机毫米波异构网络的吞吐量研究[J]. 计算机工程, 2021, 47(7): 176-182.

LU Yi, JIA Xiangdong, JI Pengshan, Lü Yaping. Research on Throughput of UAV-Assisted Multi-Tier Millimeter-Wave Heterogeneous Networks[J]. Computer Engineering, 2021, 47(7): 176-182.

http://www.ecice06.com/CN/Y2021/V47/I7/176

图/表 5

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