Search Results - "Papadias, Constantinos"

Energy-Efficient 3-D Deployment of Aerial Access Points in a UAV Communication System by Babu, Nithin, Papadias, Constantinos B., Popovski, Petar

“…In this letter, we propose an energy-efficient 3-dimensional placement of multiple aerial access points (AAPs), in the desired area, acting as flying base…”
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Precoding for Multi-Cell ISAC: From Coordinated Beamforming to Coordinated Multipoint and Bi-Static Sensing by Babu, Nithin, Masouros, Christos, Papadias, Constantinos B., Eldar, Yonina C.

“…This paper proposes a framework for designing robust precoders for a multi-input single-output (MISO) system that performs integrated sensing and communication…”
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Cost- and Energy-Efficient Aerial Communication Networks With Interleaved Hovering and Flying by Babu, Nithin, Virgili, Marco, Papadias, Constantinos B., Popovski, Petar, Forsyth, Andrew J.

“…This work proposes a methodology for the energy-and cost-efficient 3-D deployment of an unmanned aerial vehicle (UAV)-based aerial access point (AAP), that…”
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On the Blind Recovery of Cardiac and Respiratory Sounds by Shah, Ghafoor, Koch, Peter, Papadias, Constantinos B.

“…We present a method for smart auscultation by proposing a novel blind recovery of the original cardiac and respiratory sounds from a single observation…”
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What Role Do Intelligent Reflecting Surfaces Play in Multi-Antenna Non-Orthogonal Multiple Access? by Sena, Arthur S. de, Carrillo, Dick, Fang, Fang, Nardelli, Pedro H. J., Costa, Daniel B. da, Dias, Ugo S., Ding, Zhiguo, Papadias, Constantinos B., Saad, Walid

“…Massive multiple-input multiple-output (MIMO) and non-orthogonal multiple access (NOMA) are two key techniques for enabling massive connectivity in future…”
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Massive MIMO-NOMA Networks With Imperfect SIC: Design and Fairness Enhancement by de Sena, Arthur Sousa, Lima, Francisco Rafael Marques, da Costa, Daniel Benevides, Ding, Zhiguo, Nardelli, Pedro H. J., Dias, Ugo Silva, Papadias, Constantinos B.

“…This paper addresses multi-user multi-cluster massive multiple-input-multiple-output (MIMO) systems with non-orthogonal multiple access (NOMA). Assuming the…”
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MIMO Transmission for Single-Fed ESPAR With Quantized Loads by Ang Li, Masouros, Christos, Papadias, Constantinos B.

“…Compact parasitic arrays in the form of electronically steerable parasitic antenna radiators (ESPARs) have emerged as a new antenna structure that achieves…”
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IRS-Assisted Massive MIMO-NOMA Networks: Exploiting Wave Polarization by de Sena, Arthur Sousa, Nardelli, Pedro H. J., da Costa, Daniel Benevides, Lima, Francisco Rafael Marques, Yang, Liang, Popovski, Petar, Ding, Zhiguo, Papadias, Constantinos B.

“…A dual-polarized intelligent reflecting surface (IRS) can contribute to a better multiplexing of interfering wireless users. In this paper, we use this feature…”
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Cost-Efficient Design of an Energy-Neutral UAV-Based Mobile Network by Virgili, Marco, Babu, Nithin, Javidsharifi, Mahshid, Valiulahi, Iman, Masouros, Christos, Forsyth, Andrew J., Kerekes, Tamas, Papadias, Constantinos B.

“…This work proposes a framework to design a cost-efficient unmanned aerial vehicle (UAV)-based energy-neutral (EN) system deployed to harvest data from a set of…”
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Energy-Efficient Trajectory Design of a Multi-IRS Assisted Portable Access Point by Babu, Nithin, Virgili, Marco, Al-jarrah, Mohammad, Jing, Xiaoye, Alsusa, Emad, Popovski, Petar, Forsyth, Andrew, Masouros, Christos, Papadias, Constantinos B.

“…In this article, we propose a framework for energy efficient trajectory design of an unmanned aerial vehicle (UAV)-based portable access point (PAP) deployed…”
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Sustainable Wireless Services with UAV Swarms Tailored to Renewable Energy Sources by Donevski, Igor, Virgili, Marco, Babu, Nithin, Nielsen, Jimmy Jessen, Forsyth, Andrew J., Papadias, Constantinos B., Popovski, Petar

“…Unmanned Aerial Vehicle (UAV) swarms are often required in off-grid scenarios, such as disaster-struck, war-torn or rural areas, where the UAVs have no access…”
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Dual-Polarized Massive MIMO-RSMA Networks: Tackling Imperfect SIC by de Sena, Arthur Sousa, Nardelli, Pedro H. J., da Costa, Daniel Benevides, Popovski, Petar, Papadias, Constantinos B., Debbah, Merouane

“…The polarization domain provides an extra degree of freedom (DoF) for improving the performance of multiple-input multiple-output (MIMO) systems. This paper…”
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On the Performance of Eigenvalue-Based Cooperative Spectrum Sensing for Cognitive Radio by Kortun, Ayse, Ratnarajah, Tharmalingam, Sellathurai, Mathini, Caijun Zhong, Papadias, Constantinos B

“…In this paper, the distribution of the ratio of extreme eigenvalues of a complex Wishart matrix is studied in order to calculate the exact decision threshold…”
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Objective Supervised Machine Learning-Based Classification and Inference of Biological Neuronal Networks by Barros, Michael Taynnan, Siljak, Harun, Mullen, Peter, Papadias, Constantinos, Hyttinen, Jari, Marchetti, Nicola

“…The classification of biological neuron types and networks poses challenges to the full understanding of the human brain’s organisation and functioning. In…”
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Joint Transceiver Beamforming in MIMO Cognitive Radio Network Via Second-Order Cone Programming by Huiqin Du, Ratnarajah, Tharmalingam, Pesavento, Marius, Papadias, Constantinos B.

“…This paper considers the spectrum sharing multiple- input-multiple-output (MIMO) cognitive radio network, in which multiple primary users (PUs) coexist with…”
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A reconfigurable iterative algorithm for the K-user MIMO interference channel by Alexandropoulos, George C., Papadias, Constantinos B.

“…Interference alignment (IA) is a recently proposed transmission technique for the K-user interference channel (IFC), which is proven to achieve a sum-rate…”
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Achieving Arbitrary Signals Transmission Using a Single Radio Frequency Chain by Lin Zhou, Khan, Fahd Ahmed, Ratnarajah, Tharmalingam, Papadias, Constantinos B.

“…Electronically steerable parasitic array radiator (ESPAR) antenna has been proposed to obtain multiple antenna functionality with only a single radio frequency…”
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Design Guidelines for Multi-Active/Multi-Passive Parasitic Antenna Arrays by Tariq, Muhammad Haroon, Ntaikos, Dimitrios K., Papadias, Constantinos B.

“…Parasitic antenna arrays (PAAs) with a single radio frequency (RF) chain have been used to enable new trends and paradigms for multi-antenna transmission…”
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Cost-Efficient Deployment of a Reliable Multi-UAV Unmanned Aerial System by Babu, Nithin, Popovski, Petar, Papadias, Constantinos B.

“…In this work, we study the trade-off between the reliability and the investment cost of an unmanned aerial system (UAS) consisting of a set of unmanned aerial…”
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Reweighted Nuclear Norm Approach for Interference Alignment by Huiqin Du, Ratnarajah, Tharmalingam, Sellathurai, Mathini, Papadias, Constantinos B.

“…Managing uncoordinated interference becomes a substantial problem for heterogeneous networks, since the unplanned interferences from the femtos cannot be…”
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