Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Reconfigurable Intelligent Surface"”.
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Design of reconfigurable intelligent surface for 5G wireless communication system
… demand for high-speed, reliable connectivity. Reconfigurable Intelligent Surfaces (RISs) have emerged as a promising technology to address the challenges of wireless communication, offering unprecedented control over electromagnetic wave propagation in various environments. In addition, RISs …
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Efficient design of reconfigurable intelligent surface assisted multi-group multicast beamforming
… multicasting scenario facilitated by a reconfigurable intelligent surface (RIS). We propose low-complexity scalable algorithms for the joint design of the base station (BS) multicast beamformer and the RIS passive beamformer to minimize the transmit power subject to the …
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Reconfigurable intelligent surface and UAV-assisted communications: a deep reinforcement learning approach
… the energy efficiency (EE), sum-rate in reconfigurable intelligent surface (RIS) and unmanned aerieal vehicles (UAV)-aided wireless communications. The thesis carries out comprehensive optimization and evaluation of various DRL algorithms for several real-life applications including UAV's …
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Reconfigurability in Wireless Networks: Applications of Machine Learning for User Localization and Intelligent Environment
… channel state information (CSI), and configuring intelligent surface for optimum performance. In this paper, we perform an extensive research on the application of deep learning methods in reconfigurable wireless modeling problems which contains two scenarios. In the first scenario, a user …
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Fundamentals of Quantum Communication Networks: Scalability, Efficiency, and Distributed Quantum Machine Learning
… effects. Particularly, the utilization of a reconfigurable intelligent surface (RIS) in QCNs is proposed to maintain a line-of-sight (LoS) connection between quantum nodes separated by blockages, and a novel analytical model of quantum noise and end-to-end (e2e) fidelity in such QCNs is …
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Advancing RIS Optimization: From Ideal to Realistic Models
Owing to the ability of reconfigurable intelligent surfaces (RISs) to control the propagation environment in their vicinity, they have emerged as an appealing solution to enhance the performance of next-generation wireless networks. These surfaces consist of low-cost, energy-efficient reflecting …
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Unmanned Aerial Vehicles and Edge Computing in Wireless Networks
… UAV spectrum access and UAV swarm-enabled aerial reconfigurable intelligent surface (SARIS) for achieving reliable UAV communications. On the one hand, we study a 3D spectrum sharing between device-to-device (D2D) and UAVs communications. Specifically, UAVs perform spatial spectrum sensing to …
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Contemporary Approaches to Radar Detection: Robust Statistics, Reinforcement Learning, and Reconfigurable Intelligent Surfaces
… statistics, reinforcement learning (RL), and reconfigurable intelligent surfaces (RIS) to improve upon existing radar detection techniques. This work focuses only on monostatic co-located MIMO radar and radar networks. First, we look at the role of robust detection statistics and RL in radar …
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Efficient characterization and optimization of smart wireless environments
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Optimal Beamforming Strategies At Mmwaves For 5G+ Networks
… the data stream. This analogous to a distributed reconfigurable intelligent surface (RIS) system in which the tags acts as distributed RIS in indoor environment. Both users and backscatter devices in the mmWave range will have multiple antenna elements, increasing the system’s complexity. The …