Results 21 to 30 of about 1,792,499 (213)
Benefits of Beamforming Training Scheme in Distributed Large-Scale MIMO Systems
IEEE Access, 2018 The downlink training yields rather modest performance gains due to the high degree of channel hardening effect in co-located large-scale multi-input multi-output (MIMO) systems. However, in distributed large-scale MIMO systems, the potential benefits of
Jiamin Li +3 more
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Coverage Analysis of Distributed Beamforming With Random Phase Offsets Using Ginibre Point Process
IEEE Access, 2020 In this paper, we study a wireless network where multiple distributed transmitters control the phases of their signals so that they can be constructively combined at a client receiver. Unlike centralized beamforming with co-located and phase-synchronized
Justin Kong +2 more
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Deep Reinforcement Learning for Multi-User Massive MIMO With Channel Aging
IEEE Transactions on Machine Learning in Communications and Networking, 2023 The design of beamforming for downlink multi-user massive multi-input multi-output (MIMO) relies on accurate downlink channel state information (CSI) at the transmitter (CSIT). In fact, it is difficult for the base station (BS) to obtain perfect CSIT due
Zhenyuan Feng, Bruno Clerckx
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DronesThis paper investigates the use of adaptive beamforming algorithms for communication systems and sensing networks using motion-dynamic distributed random arrays. These distributed arrays include swarms of unmanned aerial vehicles (UAVs) and are formed by
Rio King +3 more
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International Journal of Antennas and Propagation, 2015 There have been many studies regarding antenna polarization; however, there have been few publications on the analysis of the channel capacity for polarized antenna systems using the beamforming technique.
Xin Su, KyungHi Chang
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Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey
IEEE Access, 2022 Cohesive Distributed Satellite Systems (CDSSs) is a key enabling technology for the future of remote sensing and communication missions. However, they have to meet strict synchronization requirements before their use is generalized.
Liz Martinez Marrero +8 more
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Position Accuracy and Distributed Beamforming Performance in WSNs: A Simulation Study
Future InternetThis work investigates the performance of distributed beamforming in Wireless Sensor Networks (WSNs), focusing on the impact of node position errors. A comprehensive simulation testbed was developed to assess how varying network topologies and position ...
José Casca +4 more
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Robust Iterative Transceiver Beamforming for Multipair Two-Way Distributed Relay Networks
IEEE Access, 2017 In this paper, the transceiver beamforming problem is studied for multipair two-way distributed relay networks, particularly with multi-antenna user nodes and in the presence of channel state errors.
Jingxiao Ma, Wei Liu
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ETRI Journal, 2020 In this paper, we propose one‐bit feedback‐based distributed beamforming (DBF) techniques for simultaneous wireless information and power transfer in interference channels where the information transfer and power transfer networks coexist in the same ...
Yong‐Gi Hong +4 more
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A distributed algorithm for robust LCMV beamforming
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2016 In this paper we propose a distributed reformulation of the linearly constrained minimum variance (LCMV) beamformer for use in acoustic wireless sensor networks. The proposed distributed minimum variance (DMV) algorithm, for which we demonstrate implementations for both cyclic and acyclic networks, allows the optimal beamformer output to be computed at
Thomas Sherson +2 more
openaire +4 more sources