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 7 of 7 for “"Multicast beamforming"”.
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Coordinated multicast beamforming for multi-cell massive MIMO systems
… we consider the efficient coordinated multi-cell multicast beamforming design in massive massive multiple-input multiple output (MIMO) cellular networks. For the problem that aims to minimize the base station transmit power, we obtain the optimal multicast beamforming solution structure. Utilizing …
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Low complexity multicast beamforming in massive MIMO multi-cell networks
In this thesis, we consider downlink multicast beamforming in massive multi-input multi- output (MIMO) multi-cell networks. Both non-cooperative and cooperative beamforming scenarios are considered. For the non-cooperative scenario, aiming at maximizing the minimum signal-to-interference-plus-noise …
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Efficient design of reconfigurable intelligent surface assisted multi-group multicast beamforming
This thesis considers a multi-group 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 …
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Fast algorithm for joint unicast and multicast beamforming in large-scale systems
We consider a joint unicast and multi-group multicast beamforming problem for massive multiple-input multiple-output (MIMO) system with a large number of unicast users. We propose an alternating direction method of multipliers (ADMM)-based fast algorithm that efficiently obtains the beamforming …
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Structure-based learning via graph neural networks for multi-group multicast beamforming
… we consider a downlink multi-antenna multi-group multicasting problem, where users in the same group request the same content. Even though existing optimization-based algorithms can obtain a sub-optimal multicast beamforming solution, they are designed under perfect channel state information (CSI) …
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Robust multi-group multicast beamforming design and antenna selection for massive MIMO systems
… (ADMM) algorithm to design robust multi-group multicast beamforming scheme for massive multiple-input multiple-output (MIMO) systems for two scenarios; 1) all antennas are available at the base station (BS), 2) only subset of antennas are available due limitation on the number of RF chains …
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Optimal structure and efficient algorithm for max-min fair multi-group multicast beamforming
… we consider the max-min fair (MMF) multi-group multicast beamforming design to maximize the minimum signal-to-interference-plus-noise ratio (SINR) subject to transmit power limit. We obtain the optimal multicast beamforming solution structure for an arbitrary system configuration. We show that …