Results 51 to 60 of about 625 (115)

Empirical Comparison of Propagation Models for Relay-Based Networks in Urban Environments

IEEE Access, 2022
We investigate propagation characteristics for wireless channels, applicable to Integrated Access and Backhaul (IAB) and relay-based networks with lamppost-height nodes at 5.5 GHz.
Virginia Silva, Rodolfo Feick, Luciano Ahumada, Reinaldo A. Valenzuela, Milan S. Derpich, Mauricio Rodriguez   +5 more
doaj   +1 more source

Resource Allocation and Node Placement in Multi-Hop Heterogeneous Integrated-Access-and-Backhaul Networks

IEEE Access, 2020
We consider a heterogeneous MIMO-OFDMA based dense small cell (SC) system in which each macro cell base station (MBS) serves its coverage area with the help of small cell base stations (SBSs) through multi-hop wireless connections.
Jiun Y. Lai, Wu-Hsiu Wu, Yu T. Su
doaj   +1 more source

Heterogeneous Multi-Agent Reinforcement Learning for Resource Allocation in NOMA-Enabled mmWave IAB Networks

IEEE Open Journal of the Communications Society
The rapid densification of next-generation wireless networks has underscored the need for scalable and cost-effective backhaul solutions. Integrated access and backhaul (IAB) networks have emerged as a promising paradigm by replacing costly optical fiber
Xuefang Nie, Xiangzhi Wan, Sheng Li, Qiangqiang Zhou, Longxia Liao, Xusheng Zhu, Jiliang Zhang   +6 more
doaj   +1 more source

Joint Design of Access and Backhaul in Densely Deployed MmWave Small Cells

, 2023
With the rapid growth of mobile data traffic, the shortage of radio spectrum resource has become increasingly prominent. Millimeter wave (mmWave) small cells can be densely deployed in macro cells to improve network capacity and spectrum utilization ...
Ai, Bo, Guo, Ziqi, He, Ruisi, Mao, Shiwen, Niu, Yong, Wang, Ning, Zhong, Zhangdui   +6 more
core  

Mission-Critical Connectivity Enhanced by IAB in Beyond 5G: Interplay of Sidelink, Directional Unicasting, and Multicasting

IEEE Open Journal of the Communications Society, 2023
Guaranteeing operational connectivity in emergency situations by means of prompt on-demand network re-configuration is crucial to carry out effective public protection and disaster relief actions.
Olga Chukhno, Nadezda Chukhno, Sara Pizzi, Antonino Orsino, Helka-Liina Maattanen, Johan Torsner, Antonella Molinaro, Antonio Iera, Giuseppe Araniti   +8 more
doaj   +1 more source

User Association Strategies in 5G/6G IAB Networks With Multicast and Unicast Traffic

IEEE Access
The increasing demand for mobile video and emerging extended/augmented reality services necessitates significant advancements in network capacity. 5G New Radio (NR) and future 6G systems address this with the introduction of high-band, above 24 GHz ...
Natalia Yarkina, Dmitri Moltchanov, Mikko Valkama   +2 more
doaj   +1 more source

Two-queue polling system as a model of an integrated access and backhaul network node in half-duplex mode

Discrete and Continuous Models and Applied Computational Science
Integrated Access and Backhaul (IAB) technology facilitates the establishment of a compact network by utilizing repeater nodes rather than fully equipped base stations, which subsequently minimizes the expenses associated with the transition towards next-
Dmitry I. Nikolaev, Vitalii A. Beschastnyi, Yuliya V. Gaidamaka   +2 more
doaj   +1 more source

Federated Multi-Agent Deep Reinforcement Learning for Dynamic and Flexible 3D Operation of 5G Multi-MAP Networks

, 2023
This paper addresses the efficient management of Mobile Access Points (MAPs), which are Unmanned Aerial Vehicles (UAV), in 5G networks. We propose a two-level hierarchical architecture, which dynamically reconfigures the network while considering ...
Catté, Esteban, Maman, Mickael, Sana, Mohamed   +2 more
core  

Optimal Resource Allocation for O-RAN With Integrated Access and Backhaul

IEEE Open Journal of the Communications Society
We propose a resource allocation optimisation framework that integrates the O-RAN architecture with out-band Integrated Access and Backhaul (IAB). Using mixed-integer linear programming (MILP), we coordinate multiple control functions across O-RAN to ...
Alican Topcu, Syed Ali Raza Zaidi, Ahmed Q. Lawey   +2 more
doaj   +1 more source

Delay and Utilization Analysis of Roadside 5G NR IAB Deployments With Half-Duplex Constraints

IEEE Open Journal of the Communications Society
The standardized 3GPP integrated access and backhaul (IAB) technology is expected to provide a cost-efficient densification of 5G New Radio access networks. Relying on multi-hop communications, one of the critical metrics in such a system is latency.
Uliana Morozova, Egor Machnev, Vitalii Beschastnyi, Darya Ostrikova, Yuliya Gaidamaka, Yevgeni Koucheryavy, Konstantin Samouylov   +6 more
doaj   +1 more source