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Artykuły w czasopismach na temat „Joint transmission (JT)”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Cui, Qimei, Hengguo Song, Hui Wang, Mikko Valkama, and Alexis A. Dowhuszko. "Capacity Analysis of Joint Transmission CoMP With Adaptive Modulation." IEEE Transactions on Vehicular Technology 66, no. 2 (2016): 1876–81. https://doi.org/10.1109/TVT.2016.2564106.

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Joint transmission (JT)-based Coordinated Multipoint (CoMP) systems achieve high performance gains by allowing full coordination among multiple cells, transforming unwanted intercell interference into useful signal power. In this paper, we present an analytical model to perform adaptive modulation for a typical JT CoMP system, consisting of three transmission points, under a target bit error rate (BER) constraint. Probability density functions of the signal-to-interference-plus-noise ratio (SINR) are derived for different JT CoMP schemes, and based on them, closed-form expressions for the aver

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Kuo, Yu-Po, Ya-Ju Yu, Tzung-Pei Hong, and Wei-Kuang Lai. "Genetic Approach for Joint Transmission Grouping in Next-Generation Cellular Networks." Sensors 22, no. 19 (2022): 7147. http://dx.doi.org/10.3390/s22197147.

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Coordinated multipoint joint transmission (JT) is one of the critical downlink transmission technologies to improve network throughput. However, multiple cells in a JT group should have the same user data to transmit simultaneously, resulting in a considerable backhaul burden. Even when cells are already equipped with caches in fifth-generation networks, JT groups, without effectively utilizing the caching data, still cause unnecessary backhaul data traffic. In this article, we investigate the JT grouping problem with the consideration of caches at cells. Then, we propose a genetic approach to

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Valentin, Disashi, Akhil Gupta, and Manmohan Sharma. "Performance Improvement of Next-Generation Network with Cognitive Radio Network and Coordinated Multipoint Joint Transmission." Journal of Physics: Conference Series 2327, no. 1 (2022): 012054. http://dx.doi.org/10.1088/1742-6596/2327/1/012054.

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Abstract Cognitive Radio Network (CRN) is a favourable technology for the future of wireless networks. It aims to seamlessly exploit spectrum resources by opportunistically using the unused or underused radio spectrum that is licensed. Cognitive Radio Network is a technology that is planned to be used in the 5th Generation of wireless communication. This technology is belied to be the answer to the unused and underused radio spectrum in the Radio environment. Whereas Coordinated Multipoint Joint Transmission (CoMP JT) is a technology that has already been used, first used in 3GPP LTE-Advanced.

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Katiran, Norshidah, Shaharil Mohd Shah, Noorsaliza Abdullah, Aimi Syamimi Abdul Ghaffar, and Faiz Asraf Saparudin. "Investigation on the BER performance of downlink JT-CoMP-NOMA with different modulation schemes." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 3 (2020): 1309–14. https://doi.org/10.11591/ijeecs.v20.i3.pp1309-1314.

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The principle of joint transmission coordinated multipoint with nonorthogonal multiple access (JT-CoMP-NOMA) is to allow multiple cells in the network to cooperatively transmit data to users using the same network resources in frequency and time domains. The approach would be beneficial in enhancing the system performance in the context of spectral efficiency. This paper presents the performance comparison of JT-CoMP-NOMA for several modulation schemes including QPSK, 16-QAM and 64 QAM in downlink transmission in the context of bit error rate. We conduct an investigation to compare the error p

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Katiran, Norshidah, Shaharil Mohd Shah, Noorsaliza Abdullah, Aimi Syamimi Abdul Ghaffar, and Faiz Asraf Saparudin. "Investigation on the BER performance of downlink JT-CoMP-NOMA with different modulation schemes." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 3 (2020): 1309. http://dx.doi.org/10.11591/ijeecs.v20.i3.pp1309-1314.

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The principle of joint transmission coordinated multipoint with non-orthogonal multiple access (JT-CoMP-NOMA) is to allow multiple cells in the network to cooperatively transmit data to users using the same network resources in frequency and time domains. The approach would be beneficial in enhancing the system performance in the context of spectral efficiency. This paper presents the performance comparison of JT-CoMP-NOMA for several modulation schemes including QPSK, 16-QAM and 64 QAM in downlink transmission in the context of bit error rate. We conduct an investigation to compare the error

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6

Kumar, Satyabrat, and Prof Rajdeep Shrivastava. "Coordinated Multipoint Joint Transmission Algorithm with Cognitive Radio Network for Improvement in Advance Cellular Communication." SMART MOVES JOURNAL IJOSCIENCE 6, no. 6 (2020): 38–42. http://dx.doi.org/10.24113/ijoscience.v6i6.301.

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Cognitive radio (CR) has been proposed as an innovation to improve the range use effectiveness by giving a sharp access of the unused/underutilized range to unlicensed clients. Then, coordinated multipoint joint transmission (JT) is another promising method to improve the presentation of cognitive radio system. In this paper, we propose a CR framework with coordinated mul-tipoint JT strategy. A logical model is created for the got signal-to-commotion proportion at a CR to decide the vitality recognition limit and the base number of required examples for vitality location based range detecting

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7

Wei, Menghan, Youjia Chen, and Ming Ding. "On the Performance of UAV-Aided Content Caching in Small-Cell Networks with Joint Transmission." Electronics 10, no. 9 (2021): 1040. http://dx.doi.org/10.3390/electronics10091040.

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Unmanned aerial vehicles (UAVs), featured by the high-mobility and high-quality propagation environment, have shown great potential in wireless communication applications. In this paper, a novel UAV-aided small-cell content caching network is proposed and analyzed, where joint transmission (JT) is considered in the dense small-cell networks and mobile UAVs are employed to shorten the serving distance. The system performance is evaluated in terms of the average cache hit probability and the ergodic transmission rate. From the analytical results, we find that (i) the proposed UAV-aided small-cel

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8

Ozyurt, Ahmet Burak, and Wasiu O. Poppola. "CoMP-JT Scheme for D2D Communication in Industrial LiFi Networks." IEEE Access 10 (July 15, 2022): 70760–68. https://doi.org/10.1109/ACCESS.2022.3188262.

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This paper focuses on the combined technique of device-to-device (D2D) and coordinated multipoint joint transmission (CoMP-JT) to bridge the indoor industrial wireless gap with LiFi-based networks. It also considers the mobility challange of industrial Internet-of-Things (IIoT) within a realistic scenario. Using the semiangle at half illuminance of the LiFi access point and D2D transmitting IIoT, we derive a coverage model for the communication range. Using stochastic geometry, the analytical expressions for CoMP-JT probability and coverage performance are derived in terms of different paramet

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9

Peng, Xuefei, Jiandong Li, and Yifei Xu. "Energy Efficiency Maximization of Dynamic CoMP-JT Algorithm in Dense Small Cell Networks." Wireless Communications and Mobile Computing 2018 (July 12, 2018): 1–7. http://dx.doi.org/10.1155/2018/8572489.

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We firstly formulate the energy efficiency (EE) maximization problem of joint user association and power allocation considering minimum data rate requirement of small cell users (SUEs) and maximum transmit power constraint of small cell base stations (SBSs), which is NP-hard. Then, we propose a dynamic coordinated multipoint joint transmission (CoMP-JT) algorithm to improve EE. In the first phase, SUEs are associated with the SBSs close to them to reduce the loss of power by the proposed user association algorithm, where the associated SBSs of each small cell user (SUE) form a dynamic CoMP-JT

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10

Tröger, Hendrik, Tobias Weber, Michael Meurer, and Paul Walter Baier. "Performance assessment of joint transmission (JT) multi-user downlinks with multi-element transmit antennas." European Transactions on Telecommunications 12, no. 5 (2001): 407–15. http://dx.doi.org/10.1002/ett.4460120506.

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Mukhtar, Alaa M., Rashid A. Saeed, Rania A. Mokhtar, Elmustafa Sayed Ali, and Hesham Alhumyani. "Performance Evaluation of Downlink Coordinated Multipoint Joint Transmission under Heavy IoT Traffic Load." Wireless Communications and Mobile Computing 2022 (January 6, 2022): 1–16. http://dx.doi.org/10.1155/2022/6837780.

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Emerging 5G network cellular promotes key empowering techniques for pervasive IoT. Evolving 5G-IoT scenarios and basic services like reality augmented, high dense streaming of videos, unmanned vehicles, e-health, and intelligent environments services have a pervasive existence now. These services generate heavy loads and need high capacity, bandwidth, data rate, throughput, and low latency. Taking all these requirements into consideration, internet of things (IoT) networks have provided global transformation in the context of big data innovation and bring many problematic issues in terms of up

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12

Yang, Qingqing, Qiuhua Zhang, and Yi Peng. "Cluster-Based Strategy for Maximizing the Sum-Rate of a Distributed Reconfigurable Intelligent Surface (RIS)-Assisted Coordinated Multi-Point Non-Orthogonal Multiple-Access (CoMP-NOMA) System." Sensors 24, no. 11 (2024): 3644. http://dx.doi.org/10.3390/s24113644.

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This article proposes a distributed intelligent Coordinated Multi-Point Non-Orthogonal Multiple-Access (CoMP-NOMA) collaborative transmission model with the assistance of reconfigurable intelligent surfaces (RISs) to address the issues of poor communication quality, low fairness, and high system power consumption for edge users in multi-cellular networks. By analyzing the interaction mechanisms and influencing factors among RIS signal enhancement, NOMA user scheduling, and multi-point collaborative transmission, the model establishes RIS-enhanced edge user grouping and coordinates NOMA user cl

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13

Sadique, Joarder Jafor, Saifur Rahman Sabuj, Shaikh Enayet Ullah, et al. "Analytical Framework of CP-Free Multiuser OFDM System for Coordinated Multi-Point at mmWave." Applied Sciences 11, no. 16 (2021): 7605. http://dx.doi.org/10.3390/app11167605.

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In this paper, a coordinated multipoint joint transmission (CoMP-JT) framework at mmWave for a cyclic prefix (CP)-free multiuser OFDM wireless communication system is developed and analyzed. The aim is to provide high-quality service to cell-edge users; otherwise, the cell-users would suffer from significant signal degradation due to undesired interference. The impact of complex Hadamard transform with block diagonalization channel precoding for multiuser interference reduction and designed subcarrier mapping for out-of-band (OOB) reduction are investigated. In addition, the paper studied the

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14

Kim, Seung-Yeon, and Haneul Ko. "Energy-Efficient Cooperative Transmission in Ultra-Dense Millimeter-Wave Network: Multi-Agent Q-Learning Approach." Sensors 24, no. 23 (2024): 7750. https://doi.org/10.3390/s24237750.

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In beyond fifth-generation networks, millimeter wave (mmWave) is considered a promising technology that can offer high data rates. However, due to inter-cell interference at cell boundaries, it is difficult to achieve a high signal-to-interference-plus-noise ratio (SINR) among users in an ultra-dense mmWave network environment (UDmN). In this paper, we solve this problem with the cooperative transmission technique to provide high SINR to users. Using coordinated multi-point transmission (CoMP) with the joint transmission (JT) strategy as a cooperation diversity technique can provide users with

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15

Katiran, Norshidah, Shaharil Mohd Shah, Noorsaliza Abdullah, Aimi Syamimi Abdul Ghaffar, and Faiz Asraf Saparudin. "User clustering and resource allocation in downlink CoMP with NOMA." Bulletin of Electrical Engineering and Informatics 8, no. 3 (2019): 1074–80. http://dx.doi.org/10.11591/eei.v8i3.1576.

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In coordinated multipoint (CoMP) system, the cell-edge performance is improved by minimizing inter-cell interference (ICI) through coordination of resources. Additionally, the non-orthogonal multiple access (NOMA) has been introduced as a promising candidate to further enhance the throughput of next generation wireless communication systems. NOMA allows multiple users to access the wireless channel in the same bandwidth simultaneously, however at different transmit power. In joint transmission NOMA in CoMP (JT-NOMA-CoMP), multiple cells jointly transmit data to users using the same time-freque

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16

Norshidah, Katiran, Mohd Shah Shaharil, Abdullah Noorsaliza, Syamimi Abdul Ghaffar Aimi, and Asraf Saparudin Faiz. "User clustering and resource allocation in downlink CoMP with NOMA." Bulletin of Electrical Engineering and Informatics 8, no. 3 (2019): 1074–80. https://doi.org/10.11591/eei.v8i3.1576.

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In coordinated multipoint (CoMP) system, the cell-edge performance is improved by minimizing inter-cell interference (ICI) through coordination of resources. Additionally, the non-orthogonal multiple access (NOMA) has been introduced as a promising candidate to further enhance the throughput of next generation wireless communication systems. NOMA allows multiple users to access the wireless channel in the same bandwidth simultaneously, however at different transmit power. In joint transmission NOMA in CoMP (JT-NOMA-CoMP), multiple cells jointly transmit data to users using the same time-freque

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17

Wu, Jiang, Leyang Sun, and Yubo Jia. "User Pairing and Power Allocation for NOMA-CoMP Based on Rate Prediction." Information 13, no. 4 (2022): 200. http://dx.doi.org/10.3390/info13040200.

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In this paper, we consider a non-orthogonal multiple access (NOMA) system with coordinated multi-point (CoMP), which is used in 5G cellular networks to guarantee the rate requirements from the different edge users. Based on the China Family Panel Studies (CFPS) dataset, we use several learning algorithms to predict users’ rate requirements according to their profiles. We propose a many-to-many two-side subchannel–user matching strategy, which can classify users into cell-center users, high-rate requirement edge users, and low-rate requirement edge users based on their status and learning predi

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18

Hedlundh, Urban, Johanna Karlsson, Ninni Sernert, et al. "Periprosthetic joint infection after total hip arthroplasty induces histological degeneration of the gluteus medius tendon." Bone & Joint Open 4, no. 8 (2023): 628–35. http://dx.doi.org/10.1302/2633-1462.48.bjo-2023-0074.r1.

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AimsA revision for periprosthetic joint infection (PJI) in total hip arthroplasty (THA) has a major effect on the patient’s quality of life, including walking capacity. The objective of this case control study was to investigate the histological and ultrastructural changes to the gluteus medius tendon (GMED) in patients revised due to a PJI, and to compare it with revision THAs without infection performed using the same lateral approach.MethodsA group of eight patients revised due to a PJI with a previous lateral approach was compared with a group of 21 revised THAs without infection, performe

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19

Khan, Shehzaad A., Peter Logan, Ajay Asokan, et al. "The incidence of venous thromboembolism in total joint replacement during COVID-19 pandemic." Bone & Joint Open 1, no. 12 (2020): 751–56. http://dx.doi.org/10.1302/2633-1462.112.bjo-2020-0144.r1.

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Aims As the first wave of the COVID-19 pandemic began to dip, restarting elective orthopaedics became a challenge. Protocols including surgery at ‘green’ sites, self-isolation for 14 days, and COVID-19 testing were developed to minimize the risk of transmission. In this study, we look at risk effects of 14-day self-isolation on the incidence of venous thromboembolism (VTE) in our green site hospital among patients undergoing total joint replacement (TJR). Methods This retrospective cohort study included 50 patients who underwent TJR. Basic demographic data was collected including, age, sex, Am

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20

Shami, Tareq M., David Grace, Alister Burr, and Muhammad D. Zakaria. "Joint User-Centric Clustering and Multi-cell Radio Resource Management in Coordinated Multipoint Joint Transmission." Wireless Personal Communications, January 17, 2022. http://dx.doi.org/10.1007/s11277-022-09499-z.

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AbstractCoordinated multipoint joint transmission (JT-CoMP) is a promising solution to address inter-cell interference in dense future wireless networks due its strength in converting interfering signals into useful signals, thereby enhancing capacity especially at the cell edge. However, allowing all user equipments (UEs) to operate using the JT-CoMP mode reduces the availability of radio resources. This paper develops an efficient algorithm that can identify which UEs will benefit from operating in a JT-CoMP mode and how to efficiently allocate radio resources from multiple base stations. Jo

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Young-Su, Ryu, Jung Su-Hyun, Kim Myoung-Jin, and Song Hyoung-Kyu. "Improved Performance Scheme for Joint Transmission in Downlink Coordinated Multi-Point Transmission." July 2, 2015. https://doi.org/10.5281/zenodo.1107690.

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In this paper, improved performance scheme for joint transmission (JT) is proposed in downlink (DL) coordinated multi-point (CoMP) in case of the constraint transmission power. This scheme is that a serving transmission point (TP) requests the JT to an inter-TP and it selects a precoding technique according to the channel state information (CSI) from user equipment (UE). The simulation results show that the bit error rate (BER) and the throughput performances of the proposed scheme provide the high spectral efficiency and the reliable data at the cell edge.

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Volpe, Deborah, Giovanni Amedeo Cirillo, Roberto Fantini, et al. "Quantum-compliant users scheduling optimization in joint transmission mobile access networks." Quantum Information Processing 23, no. 7 (2024). http://dx.doi.org/10.1007/s11128-024-04471-1.

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AbstractJoint Transmission (JT) is the dynamic coordination of transmission and/or reception at multiple geographically separated sites to improve end-user service quality. When user equipment receives signals from multiple sites, downstream performance improves. An optimization problem arises in selecting the best user subset for JT within a multiple-input–multiple-output (MIMO) system. Unfortunately, a pure brute-force approach is not feasible due to exponential time growth with user combinations, unsuitable for real-time selection in mobile networks with users continuously changing in time.

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PANAGIOTIS, GEORGAKOPOULOS, KANARIS LOIZOS, AKHTAR TAFSEER, KOKKINIS AKIS, STAVROU STAVROS, and POLITIS ILIAS. "Coalition Formation Games for Coordinated Service in Realistic Small Cell Propagation Topologies." October 12, 2020. https://doi.org/10.1109/ACCESS.2020.3030188.

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The densication of modern wireless networks into a dense ecosystem of small cells imposes challenges for the reliable service and high quality of experience of its users as it can result into severe intercell interference, especially for users scattered on the cell edges. Joint Transmission Coordinated Multipoint (JT-CoMP) is a technique that can be deployed to form cooperating clusters of transmission points, enabling them to jointly transmit data to signicantly mitigate this type of interference for these users. However, JT-CoMP stresses the backhaul links and radio resources are limited, me

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Nezafati, Mohammad Bagher, Mehrdad Taki, and Tommy Svensson. "MSE minimized joint transmission in coordinated multipoint systems with sparse feedback and constrained backhaul requirements." EURASIP Journal on Wireless Communications and Networking 2021, no. 1 (2021). http://dx.doi.org/10.1186/s13638-021-01979-3.

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AbstractIn a joint transmission coordinated multipoint (JT-CoMP) system, a shared spectrum is utilized by all neighbor cells. In the downlink, a group of base stations (BSs) coordinately transmit the users’ data to avoid serious interference at the users in the boundary of the cells, thus substantially improving area fairness. However, this comes at the cost of high feedback and backhaul load; In a frequency division duplex system, all users at the cell boundaries have to collect and send feedback of the downlink channel state information (CSI). In centralized JT-CoMP, although with capabiliti

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Georgakopoulos;, P., T. Akthar, C. Mavrokefalidis, I. Politis, K. Berberidis, and S. Koukouridis. "Coalition Formation Games for Improved Cell-Edge User Service in Downlink NOMA and MU-MIMO Small Cell Systems." August 20, 2021. https://doi.org/10.1109/ACCESS.2021.3106544.

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I In today’s wireless communication systems, the exponentially growing needs of mobile users require the combination of new and existing techniques to meet the demands for reliable and high-quality service provision. This may not always be possible, as the resources in wireless telecommunication systems are limited and a significant number of users, usually located at the cell edges, can suffer from severe interference. For this purpose, a new Joint Transmission Coordinated Multipoint (JT-CoMP) scheme, in which the transmission points’ clustering is based on a coalition formation g

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Armeniakos, Harris K., Konstantinos Maliatsos, Petros S. Bithas, and Athanasios G. Kanatas. "A stochastic geometry-based performance analysis of a UAV corridor-assisted IoT network." Frontiers in Communications and Networks 5 (February 26, 2024). http://dx.doi.org/10.3389/frcmn.2024.1337697.

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The exploitation of unmanned aerial vehicles (UAVs) in enhancing network performance in the context of beyond-fifth-generation (5G) communications has shown a variety of benefits compared to terrestrial counterparts. In addition, they have been largely conceived to play a central role in data dissemination to Internet of Things (IoT) devices. In the proposed work, a novel stochastic geometry unified framework is proposed to study the downlink performance in a UAV-assisted IoT network that integrates both UAV-base stations (UAV-BSs) and terrestrial IoT receiving devices. The framework builds up

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