Results 21 to 30 of about 33,840 (257)
EURASIP Journal on Wireless Communications and Networking, 2018 This paper focuses on energy-efficient coordinated multi-point (CoMP) downlink in multi-antenna multi-cell wireless communications systems. We provide an overview of transmit beamforming designs for various energy efficiency (EE) metrics including ...
Kien-Giang Nguyen +4 more
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Context-based user grouping for multi-casting in heterogeneous radio networks [PDF]
Advances in Radio Science, 2011 Along with the rise of sophisticated smartphones and smart spaces, the availability of both static and dynamic context information has steadily been increasing in recent years.
C. Mannweiler +3 more
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Max-Min Fairness for Stacked Intelligent Metasurface-Assisted Multi-User MISO Systems
IEEE Open Journal of the Communications SocietyStacked intelligent metasurface (SIM) is an emerging technology that uses multiple reconfigurable surface layers to enable flexible wave-based beamforming.
Nipuni Ginige +5 more
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6G: The Intelligent Network of Everything
IEEE AccessThe global 6G vision has taken its shape after years of international research and development efforts. This work culminated in ITU-R Recommendation on “IMT-2030 Framework”.
Harri Pennanen +4 more
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Over-the-Air Phase Calibration Methods for 5G mmW Antenna Array Transceivers
IEEE AccessCalibration is essential to optimize the performance of any radio transceiver during its development and manufacturing processes. This paper proposes over-the-air (OTA) calibration methods based on measuring and calibrating the phases of phased array ...
Markku Jokinen +4 more
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Performance analysis of ultra-reliable short message decode and forward relaying protocols
EURASIP Journal on Wireless Communications and Networking, 2018 Machine-type communication (MTC) is a rapidly growing technology which covers a broad range of automated applications and propels the world into a fully connected society.
Parisa Nouri +2 more
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Latency-Aware Highly-Reliable mmWave Systems via Multi-Point Connectivity
IEEE Access, 2022 The sensitivity of the millimeter-wave (mmWave) radio channel to blockages is a fundamental challenge in achieving low-latency and highly-reliable connectivity.
Dileep Kumar +2 more
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Biodegradable and Biocompatible Functional Polymers for Biomedical Applications
Advanced Functional Materials, EarlyView.Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han +5 more
wiley +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Fitting the Distribution of Linear Combinations of t− Variables with more than 2 Degrees of Freedom
Journal of Probability and Statistics, 2023 The linear combination of Student’s t random variables (RVs) appears in many statistical applications. Unfortunately, the Student’s t distribution is not closed under convolution, thus, deriving an exact and general distribution for the linear ...
Onel L. Alcaraz López +2 more
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