Results 21 to 30 of about 639,489 (294)
An Overview of Signal Processing Techniques for Millimeter Wave MIMO Systems [PDF]
IEEE Journal on Selected Topics in Signal Processing, 2015 Communication at millimeter wave (mmWave) frequencies is defining a new era of wireless communication. The mmWave band offers higher bandwidth communication channels versus those presently used in commercial wireless systems.
R. Heath +4 more
semanticscholar +1 more source
Miniaturized MIMO Antenna with Low Inter-radiator Transmittance and Band Rejection Features [PDF]
Journal of Electromagnetic Engineering and Science, 2021 In this article, compact a multiple-input and multiple-output (MIMO) system with flag-shaped radiators and a mountain-shaped ground plane is presented. Isolation is enhanced with the help of a decoupling stub placed between radiators, where two bands are
Muhammad Irshad Khan +2 more
doaj +1 more source
IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
MIMO-GAN: Generative MIMO Channel Modeling
ICC 2022 - IEEE International Conference on Communications, 2022 Accepted at IEEE ICC 2022. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other ...
Orekondy, Tribhuvanesh +2 more
openaire +2 more sources
Time-Varying Kelvin Wake Model and Microwave Velocity Observation
Sensors, 2020 In the synthetic aperture radar (SAR) imaging of ship-induced wakes, it is difficult to obtain the Doppler velocity of a Kelvin wake due to the lack of time-varying wake models and suitable radar equipment.
Jie Niu, Xingdong Liang, Xin Zhang
doaj +1 more source
Energy and Spectral Efficiency of Very Large Multiuser MIMO Systems [PDF]
IEEE Transactions on Communications, 2011 A multiplicity of autonomous terminals simultaneously transmits data streams to a compact array of antennas. The array uses imperfect channel-state information derived from transmitted pilots to extract the individual data streams.
H. Ngo, E. Larsson, T. Marzetta
semanticscholar +1 more source
Extremely Large-Scale MIMO: Fundamentals, Challenges, Solutions, and Future Directions [PDF]
IEEE wireless communications, 2022 Extremely large-scale multiple-input-multiple-output (XL-MIMO) is a promising technology to empower next-generation communications. However, XL-MIMO, which is still in its early stage of research, has been designed with a variety of hardware and ...
Zhe Wang +6 more
semanticscholar +1 more source
On the Achievable Capacity of MIMO-OFDM Systems in the CathLab Environment
Sensors, 2020 In the last years, the evolution of digital communications has been harnessed by medical applications. In that context, wireless communications are preferable over wired communications, as they facilitate the work of health technicians by reducing ...
João Guerreiro, Rui Dinis, Luís Campos
doaj +1 more source
The Joint Channel Coding and Pre-Distortion Technique on the USRP-Based MIMO-OFDM System
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2023 Modern wireless communication systems use orthogonal frequency division multiplexing (OFDM), a multi-carrier modulation method that resists multipath channels and provides bandwidth efficiency. OFDM is generally used with a Multiple-Input Multiple-Output
Melki Mario Gulo +4 more
doaj +1 more source
Proportional Fair MU-MIMO in 802.11 WLANs [PDF]
, 2014 We consider the proportional fair rate allocation in an 802.11 WLAN that supports multi-user MIMO (MU-MIMO) transmission by one or more stations. We characterise, for the first time, the proportional fair allocation of MU-MIMO spatial streams and station
Leith, Douglas J., Valls, Víctor
core +2 more sources