Results 101 to 110 of about 14,760 (220)

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger, J. L. Chau, J. Vierinen, D. Vida, L. E. Cordonnier, Z. Balint, M. Clahsen, E. Dao, J. Dowell, J. M. Holmes, R. F. Kelly, D. Kastinen, N. Pfeffer, K. Robinson, G. B. Taylor, J. M. Urco   +15 more
wiley   +1 more source

On Out-of-Band Emissions of Quantized Precoding in Massive MU-MIMO-OFDM

, 2017
We analyze out-of-band (OOB) emissions in the massive multi-user (MU) multiple-input multiple-output (MIMO) downlink. We focus on systems in which the base station (BS) is equipped with low-resolution digital-to-analog converters (DACs) and orthogonal ...
Sven Jacobsson, Giuseppe Durisi, Christoph Studer, Durisi, Giuseppe,, Studer, Christoph, Studer, Christoph,, Coldrey, Mikael, Jacobsson, Sven, Durisi, Giuseppe, Mikael Coldrey, Coldrey, Mikael,, Jacobsson, Sven,   +11 more
core   +1 more source

Massive Multi-Antenna Communications with Low-Resolution Data Converters [Elektronisk resurs]

, 2019
Massive multi-user (MU) multiple-input multiple-output (MIMO) will be a core technology in future cellular communication systems. In massive MU-MIMO systems, the number of antennas at the base station (BS) is scaled up by several orders of magnitude ...
Jacobsson, Sven,
core  

Energy Efficient Massive MIMO IoT Network: A Power and MSE Constrained Approach [PDF]

peer reviewedThis paper considers massive multiple-input multiple-output (MIMO) Internet of Things (IoT) networks where each sensor is equipped with a single antenna, while the fusion center (FC) is equipped with a massive array of antennas.
Sharma, Ekant, Singh, Prem, RAJPUT, Kunwar, Mysore Ramarao, Bhavani Shankar   +3 more
core   +1 more source

Massive MIMO channels - measurements and models [PDF]

, 2013
Spatial multiplexing using Massive MIMO has been shown to have very promising properties, including large gains in spectral efficiency and several orders of magnitude lower transmit power, as compared to today's access schemes.
Xiang Gao, Gao, Xiang, Tufvesson, Fredrik, Ove Edfors, Edfors, Ove, Fredrik Tufvesson   +5 more
core   +1 more source

A Fair User Selection Algorithm for Multi-User Massive MIMO System

JAREE (Journal on Advanced Research in Electrical Engineering), 2018
Massive Multiple-input Multiple-output (Massive MIMO) system is one of the most potential candidates for the fifth-generation wireless communication.
Dhoni Putra Setiawan
doaj  

A Generalized Sum-Rate Optimizer for Cooperative Multiuser Massive MIMO Link Topologies

IEEE Access, 2014
Large-scale, or massive, multiple-input multiple-output (MIMO) systems are typified by the number of antennas contributing to a communication link.
Adam L. Anderson, Michael A. Jensen
doaj   +1 more source

Compressed Training Based Massive MIMO

IEEE Transactions on Signal Processing, 2019
Massive multiple-input-multiple-output (MIMO) scheme promises high spectral efficiency through the employment of large scale antenna arrays in base stations. In time division duplexed implementations, co-channel mobile terminals transmit training information such that base stations can estimate and exploit channel state information to spatially ...
Baki Berkay Yilmaz, Alper T. Erdogan
openaire   +4 more sources

Multimedia over massive MIMO wireless systems [PDF]

, 2015
To satisfy the massive wireless traffic transmission generated by multimedia applications, the massive multi-input-multi-output (MIMO) wireless system has emerged as a possible solution for future 5G wireless communication systems.
Wang, Haichao, Zhang, Jing, Haichao Wang, Zi, Ran, Xiaohu Ge, Ran Zi, Ge, Xiaohu, Qiang Ni, Ni, Qiang, Jing Zhang   +9 more
core   +1 more source

Scalability of MIMO Antennas: Assessing Gain and HPBW for Different Antenna Element Configurations

Jurnal Rekayasa Elektrika
The design of Massive MIMO Antennas presents challenges due to their large size, which can impede the design process. Additionally, the arrangement of multiple antenna elements in Massive MIMO Antennas poses a challenge, as it surpasses the capabilities ...
Salwa Salsabila, Harfan Hian Ryanu, Levy Olivia Nur, Bambang Setia Nugroho   +3 more
doaj   +1 more source