Upper bound of outage probability in unmanned aerial vehicle-assisted cellular networks over fading channels

IF 5.8 2区计算机科学 Q1 TELECOMMUNICATIONS

Vehicular Communications Pub Date : 2024-09-05 DOI:10.1016/j.vehcom.2024.100840

Mehran Pourmohammad Abdollahi, Hosein Azarhava, Javad Musevi Niya, Mahdi Nangir

{"title":"Upper bound of outage probability in unmanned aerial vehicle-assisted cellular networks over fading channels","authors":"Mehran Pourmohammad Abdollahi, Hosein Azarhava, Javad Musevi Niya, Mahdi Nangir","doi":"10.1016/j.vehcom.2024.100840","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, we consider a multi-tier cellular network in which a hovering Unmanned Aerial Vehicle (UAV) assists the network in the absence of the terrestrial Macrocell base station. The orthogonal sub channels are assumed for communication between the UAV and its attached users. The Femtocell users and Device-to-Device (D2D) pairs transmit their data to the corresponding receivers in the same sub-channels. Achieving the outage probability of the ground users, is a challenge for the operators considering the dominant small scale and large scale fading over the channels, Line-of-Sight and None-Line-of-Sight conditions together. The mentioned problem becomes worse in the presence of cross-tier interferences. We investigate the outage probability of the ground UAV users to evaluate the performance of the network. Due to intractability of the calculations to derive the exact outage probability, the closed-form expressions are derived for the upper bound of outage probability under Rayleigh and Nakagami-<em>m</em> fading. The effect of UAV altitude, density of D2Ds and corresponding transmission powers are discussed. The results verify the simulations and confirm that the proposed approach outperforms the existing upper bound methods.</p></div>","PeriodicalId":54346,"journal":{"name":"Vehicular Communications","volume":"50 ","pages":"Article 100840"},"PeriodicalIF":5.8000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vehicular Communications","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214209624001153","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}

引用次数: 0

Abstract

In this paper, we consider a multi-tier cellular network in which a hovering Unmanned Aerial Vehicle (UAV) assists the network in the absence of the terrestrial Macrocell base station. The orthogonal sub channels are assumed for communication between the UAV and its attached users. The Femtocell users and Device-to-Device (D2D) pairs transmit their data to the corresponding receivers in the same sub-channels. Achieving the outage probability of the ground users, is a challenge for the operators considering the dominant small scale and large scale fading over the channels, Line-of-Sight and None-Line-of-Sight conditions together. The mentioned problem becomes worse in the presence of cross-tier interferences. We investigate the outage probability of the ground UAV users to evaluate the performance of the network. Due to intractability of the calculations to derive the exact outage probability, the closed-form expressions are derived for the upper bound of outage probability under Rayleigh and Nakagami-m fading. The effect of UAV altitude, density of D2Ds and corresponding transmission powers are discussed. The results verify the simulations and confirm that the proposed approach outperforms the existing upper bound methods.

查看原文本刊更多论文

衰减信道上无人机辅助蜂窝网络的中断概率上限

在本文中，我们考虑了一种多层蜂窝网络，其中在没有地面宏蜂窝基站的情况下，由悬停的无人飞行器（UAV）协助网络工作。假设无人飞行器与其所附用户之间的通信采用正交子信道。Femtocell 用户和设备对设备 (D2D) 对通过相同的子信道向相应的接收器传输数据。考虑到信道上主要的小尺度和大尺度衰落、视距和非视距条件，实现地面用户的中断概率对运营商来说是一个挑战。在存在跨层干扰的情况下，上述问题会变得更加严重。我们研究了地面无人机用户的中断概率，以评估网络的性能。由于计算精确中断概率的困难性，我们推导出了瑞利衰落和中上衰落条件下中断概率上限的闭式表达式。讨论了无人机高度、D2Ds 密度和相应传输功率的影响。结果验证了模拟结果，并证实所提出的方法优于现有的上界方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Vehicular Communications Engineering-Electrical and Electronic Engineering

CiteScore

12.70

自引率

10.40%

发文量

审稿时长

62 days

期刊介绍： Vehicular communications is a growing area of communications between vehicles and including roadside communication infrastructure. Advances in wireless communications are making possible sharing of information through real time communications between vehicles and infrastructure. This has led to applications to increase safety of vehicles and communication between passengers and the Internet. Standardization efforts on vehicular communication are also underway to make vehicular transportation safer, greener and easier. The aim of the journal is to publish high quality peer–reviewed papers in the area of vehicular communications. The scope encompasses all types of communications involving vehicles, including vehicle–to–vehicle and vehicle–to–infrastructure. The scope includes (but not limited to) the following topics related to vehicular communications: Vehicle to vehicle and vehicle to infrastructure communications Channel modelling, modulating and coding Congestion Control and scalability issues Protocol design, testing and verification Routing in vehicular networks Security issues and countermeasures Deployment and field testing Reducing energy consumption and enhancing safety of vehicles Wireless in–car networks Data collection and dissemination methods Mobility and handover issues Safety and driver assistance applications UAV Underwater communications Autonomous cooperative driving Social networks Internet of vehicles Standardization of protocols.