利用动态超图着色为社交辅助无人机蜂窝网络分配子信道

IF 5.8 2区 计算机科学 Q1 TELECOMMUNICATIONS
Kanhu Charan Gouda, Sangya Shrivastava, Rahul Thakur
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引用次数: 0

摘要

设备到设备(D2D)通信与无人飞行器(UAV)Femtocell 和非授权频谱结合使用,可有效解决日益增长的移动数据需求。然而,由于没有基站等集中实体,D2D 通信会引发用户对安全和隐私的担忧。因此,探索用户之间的社会联系对于实现安全、可信的 D2D 通信势在必行。本文试图通过提出一种采用超图着色的新型子信道分配技术,提高由 D2D 通信增强的社交辅助无人机蜂窝网络的性能。考虑到现实世界中的场景,我们通过使用动态超图着色进行子信道分配而不是静态子信道分配,将用户/无人机的移动性纳入其中。我们提出的技术根据一组蜂窝用户与其他同信道 D2D 用户的社交关系,将其从许可频段转移到非许可频段。此外,我们还为不同用户分配子信道,以优化吞吐量,同时最大限度地减少整体干扰。与传统技术相比,我们提出的技术在系统吞吐量、能效和干扰效率方面都有显著提高。与传统技术(图、超图和动态超图)相比,我们所提出的技术在每用户系统吞吐量方面分别提高了 69%、42% 和 15%。此外,与图技术、超图技术和动态超图技术相比,我们的技术使每个用户的能效分别提高了 120%、70% 和 25%,使每个用户的干扰效率分别提高了 92%、43% 和 22%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Subchannel assignment for social-assisted UAV cellular networks using dynamic hypergraph coloring

Device-to-Device (D2D) communication when used in conjugation with Unmanned Aerial Vehicle (UAV) Femtocell and unlicensed spectrum can effectively tackle the ever-increasing mobile data demands. However, D2D communication raises security and privacy concerns among users due to the absence of a centralized entity such as a base station. Therefore, exploring social connections among users becomes imperative to enable secure and trustworthy D2D communication. This paper seeks to improve the performance of a social-assisted UAV cellular network augmented by D2D communication by proposing a novel subchannel assignment technique employing hypergraph coloring. Considering the real-world scenario, we incorporate the user/UAV mobility by using dynamic hypergraph coloring for subchannel assignment instead of the static one. Our proposed technique shifts a set of cellular users from the licensed to the unlicensed band based on their social connection with other co-channel D2D users. Additionally, we assign subchannels to different users to optimize the throughput while minimizing overall interference. Our proposed technique demonstrates significant improvements in system throughput, energy efficiency, and interference efficiency compared to conventional techniques. For our proposed technique, we observed improvements of 69%, 42%, and 15% in the per user system throughput when compared with the conventional techniques (graph, hypergraph, and dynamic-hypergraph, respectively). Moreover, our technique achieves higher per user energy efficiency by 120%, 70%, and 25%, and higher per user interference efficiency by 92%, 43%, and 22%, respectively, compared to graph, hypergraph, and dynamic-hypergraph techniques.

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来源期刊
Vehicular Communications
Vehicular Communications Engineering-Electrical and Electronic Engineering
CiteScore
12.70
自引率
10.40%
发文量
88
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.
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