Results 81 to 90 of about 139,241 (237)
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
Pesquisa Agropecuária Gaúcha, 2000 A época de semeadura é, provavelmente, a prática cultural isoladamente mais importante para a soja [Glycine max (L.) Merrill]. A melhor época de semeadura para esta oleaginosa depende, principalmente, da temperatura do solo para a germinação e emergência,
Mimo ANTONIO BARN, RONALDO MATZENAUER
doaj
Advances in Electrical and Computer Engineering, 2017 This article presents and evaluates pipelined architecture designs for an improved high-frequency Fast Fourier Transform (FFT) processor implemented on Field Programmable Gate Arrays (FPGA) for Multiple Input Multiple Output Orthogonal Frequency ...
DALI, M. +4 more
doaj +1 more source
Robust and Passive Motion Detection with COTS WiFi Devices
Tsinghua Science and Technology, 2017 Device-free Passive (DfP) detection has received increasing attention for its ability to support various pervasive applications. Instead of relying on variable Received Signal Strength (RSS), most recent studies rely on finer-grained Channel State ...
Hai Zhu +5 more
doaj +1 more source
Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel +2 more
wiley +1 more source
Analysis and Design of Channel Estimation in Multicell Multiuser MIMO OFDM Systems [PDF]
, 2014 This paper investigates the uplink transmission in multicell multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The system model considers imperfect channel estimation, pilot contamination (PC), and
Xu, Peng +3 more
core +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
Key Technical Fields and Future Outlooks of Space Manipulators: A Survey
SmartBot, EarlyView.This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen +12 more
wiley +1 more source
Optimal Lattice-Reduction Aided Successive Interference Cancellation for MIMO Systems
, 2007 In this letter, we investigated the optimal minimum mean-squared-error (MMSE) based successive interference cancellation (SIC) strategy designed for lattice-reduction aided multiple-input multiple-output (MIMO) detectors.
Lee, K., Chun, J., Hanzo, L.
core +1 more source
Физика волновых процессов и радиотехнические системыBackground. In wireless mobile communications, there are often situations when several radio transmitting devices operate on a single antenna system in several frequency bands, and therefore there is a need to create efficient multi-frequency antenna ...
Dmitriy S. Klyuev +5 more
doaj +1 more source