Evaluating energy harvesting UAV-NOMA network with random user pairing in the finite blocklength regime

IF 5.8 2区 计算机科学 Q1 TELECOMMUNICATIONS
Shardul Thapliyal, Rajoo Pandey, Chhagan Charan
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引用次数: 0

Abstract

This study proposes an integrated system that combines energy harvesting (EH) enabled unmanned aerial vehicles (UAVs) with non-orthogonal multiple access (NOMA) to enhance communication system performance within a cellular network. Addressing the limitations of existing analyses that often assume an infinite blocklength scenario, we explore EH-enabled UAV-NOMA systems within a cellular framework under a finite blocklength (FBL) scenario. The study investigates the complex interactions and advantages resulting from the integration of EH, NOMA, and UAV technologies, aiming to assess whether EH can sustain communication within this framework. The network model considers base stations (BSs), UAVs, and terrestrial devices distributed with independent Poisson point processes (PPPs) over a large area. In this network, BSs employ NOMA to serve cell center devices directly, while cell edge devices, which are nor in direct contact with BS, are served via simultaneous wireless information and power transfer (SWIPT) enabled UAVs. The study derives metrics including joint harvesting and decoding probability for a randomly selected UAV, coverage probability (CP) for cell devices, and end-to-end block error rate (BLER) probabilities for typical device pairs. The findings demonstrate that the proposed scheme effectively supplies all the necessary transmit power for communication purposes through EH, achieving reasonable reliability. Additionally, the study highlights the importance of considering a combination of blocklengths from different phases to achieve optimal performance, rather than solely relying on an increment in blocklength. Finally, the effects of parameter variations on network performance are examined.

评估有限块长范围内随机用户配对的能量收集无人机-NOMA 网络
本研究提出了一种集成系统,将支持能量收集(EH)的无人机(UAV)与非正交多址(NOMA)相结合,以提高蜂窝网络内的通信系统性能。针对现有分析通常假设无限块长场景的局限性,我们探讨了有限块长(FBL)场景下蜂窝框架内的 EH 无人机-NOMA 系统。本研究探讨了 EH、NOMA 和无人机技术整合后产生的复杂交互作用和优势,旨在评估 EH 能否在此框架内维持通信。该网络模型考虑了基站(BS)、无人机和地面设备,它们以独立的泊松点过程(PPP)分布在大片区域。在该网络中,基站采用 NOMA 直接为小区中心设备提供服务,而小区边缘设备(与基站没有直接联系)则通过支持同步无线信息和功率传输 (SWIPT) 的无人机提供服务。研究得出的指标包括随机选择的无人机的联合采集和解码概率、小区设备的覆盖概率(CP)以及典型设备对的端到端块错误率(BLER)概率。研究结果表明,所提出的方案通过 EH 有效地提供了通信所需的全部发射功率,实现了合理的可靠性。此外,该研究还强调了考虑不同阶段的分块长度组合以实现最佳性能的重要性,而不是仅仅依赖于分块长度的增加。最后,研究还探讨了参数变化对网络性能的影响。
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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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