Results 1 to 10 of about 639,489 (294)
A Compact Ultra-Wideband Chip Antenna with Bandwidth Extension Patch and Simple Isolator for MIMO Systems for Mobile Handheld Terminals [PDF]
Journal of Electromagnetic Engineering and Science, 2022 A compact ultra-wideband (UWB) chip antenna that has high isolation for multi-input multi-output (MIMO) systems is presented in this paper. The antenna is composed of a chip antenna, a printed circuit board, and an isolator stub.
Jung-Nam Lee +2 more
doaj +1 more source
Design of Robust Decentralized Control Systems for Distillation Columns [PDF]
Problems of the Regional Energetics, 2022 This paper is devoted to the development of a decentralized control system design method with improved robustness, applicable to distillation columns control problem.
Stopakevych A.O., Stopakevych O.A.
doaj +1 more source
Performance Improvements in SNR of a Multipath Channel Using OFDM-MIMO [PDF]
International Journal of Electronics and Telecommunications, 2023 The Non Line of Sight (NLOS) broadband wireless access provided by Worldwide Interoperability for Microwave Access (WiMAX) operating in 2-11 GHz frequency is susceptible to the effects of multipath propagation, diffraction fading, vegetation attenuation,
Sharmini Enoch, Ifiok Otung
doaj +1 more source
MIMO and Massive MIMO Transmitter Crosstalk [PDF]
IEEE Transactions on Wireless Communications, 2020 The effects of hardware-induced crosstalk in MIMO transmitters, subject to nonlinear power amplifier distortion, are considered in this paper. A methodology that provides tractable results and a clear understanding of the effects of crosstalk on transmitter performance is introduced and applied to different transmitter models.
Peter Handel, Daniel Ronnow
openaire +2 more sources
Research on a method of center of spreading spectrum testing deception jamming
Dianzi Jishu Yingyong, 2021 According to the problem of performance reduction even losing lock for the MIMO system threatened by deception jamming with pseudo-command, this paper presents a technology can test the deception jamming based on central part of spreading spectrum.
An Qiaojing +5 more
doaj +1 more source
PERFORMANCE ANALYSIS AND EVALUATION OF MASSIVE MIMO SYSTEM [PDF]
Applied Computer Science, 2020 This article examines the performance of massive MIMO uplink system over Rician fading channel. The performance is estimated regarding spectral efficiency versus number of base station antennas utilizing three plans of linear detection, maximum-ratio ...
Muaayed F. AL-RAWI +2 more
doaj +1 more source
Perception of the Impact of Negative Externalities on the Logistics Development of Adriatic Seaports of Koper, Rijeka and Bar [PDF]
Amfiteatru Economic, 2019 The subject of the paper is to investigate the hypothetical perceptions of the impact of negative externalities on the expansion and development of selected Adriatic seaports. The aim of the paper is to show that Adriatic seaports must accept and apply
Mimo Draskovic
doaj +1 more source
Subarray 4×4 untuk Antena MIMO 5G dengan Elemen yang Menerapkan Teknik Parasitic
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2023 Multiple-input multiple-output (MIMO) merupakan sistem komunikasi nirkabel yang menggunakan banyak antena di sisi pemancar maupun penerima. Sistem ini dapat meningkatkan kualitas komunikasi nirkabel pada jaringan teknologi 5G.
Fitri Amillia +2 more
doaj +1 more source
International Journal of Satellite Communications and Networking, EarlyView., 2023 In this paper, we investigate the application of signal‐to‐leakage‐plus‐noise ratio (SLNR) beamforming to low Earth orbit non‐terrestrial networks. The SLNR criterion aims at maximizing the received desired signal power for each user while minimizing the overall interference power caused by each user to all other co‐channel receivers. We show that such
M. Rabih Dakkak +3 more
wiley +1 more source
International Journal of Satellite Communications and Networking, EarlyView., 2023 The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri +2 more
wiley +1 more source