Results 61 to 70 of about 145,380 (224)
MIMO Antenna System Using Orthogonally Polarized Ultra Wide Band Antennas With Metamaterial [PDF]
Engineering and Technology Journal, 2010 Modern wireless communications require wide band width resulting in anincreased demand for Ultra-Wide Bandwidth antennas. This paper proposes a design for a compact, ultra wide bandwidth antenna with metamaterial. It will be small in size and utilize the
Jamal M.Rasool
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
Marginally Strictly Negative Imaginary Systems
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This article revisits a fundamental question in negative imaginary (NI) systems theory: what is the weakest viable notion of strictness that still preserves the classical feedback stability picture? To address this question, we introduce the notion of marginally strictly negative imaginary (MSNI) systems to accommodate simple nonzero imaginary‐
Tianzhe Zhang +3 more
wiley +1 more source
A channel estimation algorithm for MIMO-SCFDE [PDF]
, 2004 This letter proposes a novel method for channel stimation in a single-carrier multiple input-multiple output (MIMO) system with frequency-domain equalization/detection.
Nix, AR +6 more
core +1 more source
Semi-blind iterative joint channel estimation and K-best sphere decoding for MIMO
, 2013 An efficient and high-performance semi-blind scheme is proposed for Multiple-Input Multiple-Output (MIMO) systems by iteratively combining channel estimation with K-Best Sphere Decoding (SD).
Messier, G.G. +3 more
core +2 more sources
Declaración Universal de Derechos Lingüísticos
Revista Iberoamericana de Educación, 1997 Entre los días 6 y 8 de junio de 1996 se reunieron en Barcelona, España, 61 ONGs, 30 Centros PEN y 40 expertos en derecho lingüístico de todo el mundo.
Oriol Ramón i Mimó
doaj
The MIMO-OTFS Technique in the Next 6G Communications
Engineering AccessThe orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation
Ali J. Ramadhan, Ali Taei Zadeh
doaj +1 more source
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT In privacy protection of control systems, a trade‐off between control performance and privacy level is often pointed out. Our goal in this paper is to improve this trade‐off by shaping the frequency of noise added for privacy protection when the control objective is to track a reference signal, which is taken as a piece of information whose ...
Rintaro Watanabe +3 more
wiley +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani +2 more
wiley +1 more source
Jaume Vernet i Llobet, «Normalització lingüística i accés a la funció pública»
Revista de Llengua i Dret - Journal of Language and Law, 1992 .
Oriol Ramon i Mimó
doaj