Browsing Doctoral Dissertations by Author "ShahbazPanahi, Shahram"
Now showing items 1-7 of 7
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Optimal resource sharing and spectrum leasing in energy efficient relay-assisted networks
Gavili, Adnan (2015-07-01)Assuming a bidirectional relay assisted network, we first study the problem of optimal resource sharing between two transceiver pairs. One of the pairs, referred to as the primary pair, owns the spectral resources while ... -
A POMDP framework for antenna selection and user scheduling in multi-user massive MIMO systems
Sharifi, Sara (2022-04-01)We use a partially observable Markov decision process (POMDP) framework to design a resource allocation policy for downlink transmit beamforming at a multi-antenna BS that is equipped with a massive number of antennas and ... -
Power efficient designs for 5G wireless networks
Kiani, Sharareh (2021-01-01)In this dissertation, to step forward towards green communication, we study power efficient solutions in three potential 5G wireless networks, namely an asynchronous multicarrier two-way Amplify-and-Forward (AF) relay ... -
Robust multi-group multicast beamforming design and antenna selection for massive MIMO systems
Mohamadi, Niloofar (2023-04-01)In this dissertation, we use an Alternating Direction Method of Multipliers (ADMM) algorithm to design robust multi-group multicast beamforming scheme for massive multiple-input multiple-output (MIMO) systems for two ... -
Sparse signal representation based algorithms with application to ultrasonic array imaging
Hamidi, Shahrokh (2016-06-01)We address one- and two-layer ultrasonic array imaging. We use an array of transducers to inspect the internal structure of a given specimen. In the case of one-layer imaging we also address the problem of mode conversion. ... -
Spectrum sharing for multi-user massive MIMO networks
Saif, Rosa (2023-12-01)In this dissertation, we propose a creative approach to advance 5G network technologies by investigating the impact of employing an underlay spectrum sharing (USS) scheme on the performance of two massive multi-input-multi-output ... -
Ultrasonic array imaging for multi-layer materials in non-destructive testing applications.
Moallemi, Nasim (2014-12-01)Ultrasonic imaging for a multi-layer medium is a common challenge in seismology, medical diagnosis, and non-destructive testing. One application for multi-layer imaging is ultrasonic immersion test where the material ...