Results 61 to 70 of about 7,611,580 (295)

A rapid identification method for severely earthquake-damaged areas based on damaged mobile phone base stations in China [PDF]

, 2016
Obtaining an accurate map of severely damaged areas immediately after an earthquake is a high priority in China. Previous methods of mapping these areas in the country have been too slow. The increasing number of mobile phone base stations provides a new
Lu, QS, Huang, ZY, Zhang, XY, Ning, BK, Lu, QS (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China. qslu@yic.ac.cn   +4 more
core   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Precoding for Multiuser MIMO Systems with Multiple Base Stations [PDF]

, 2009
Future cellular networks are expected to support extremely high data rates and user capacities. This thesis investigates the downlink of a wireless cellular system that takes advantage of multiple antennas at base stations and mobile stations, frequency ...
Azzam, Imad
core  

Base station cooperation in MIMO-aided multi-user multi-cell systems employing distributed probabilistic data association based soft reception [PDF]

, 2011
Inter-cell co-channel interference (CCI) mitigation is investigated in the context of cellular systems relying on dense frequency reuse. A distributed Base Station (BS) cooperation aided soft reception scheme using the Probabilistic Data Association (PDA)
Yang, Shaoshi, Lv, Tiejun, Shaoshi Yang, Hanzo, Lajos, Tiejun Lv, Lajos Hanzo   +5 more
core   +1 more source

Copper Electroplated TPMS Polymer Lattices for Lightweight Absorption Dominant Electromagnetic Interference Shielding

Advanced Materials Technologies, EarlyView.
Copper electroplating transforms lightweight 3D‐printed TPMS polymer lattices into effective electromagnetic shields. Topology, relative density, and conductive seed layer continuity govern copper penetration, electrical resistance, and attenuation. SEA consistently exceeds SER, while 35% RD Diamond lattice gives the best performance, reaching 48.72 dB
Aman Al Khatib, Fares AlAwwa, Naod Mogos, Abdallah Kamal, Kin Liao, Marwan El Rich, Wael Zaki   +6 more
wiley   +1 more source

Highly Conductive and Transparent Coatings via Low‐Temperature Hydroiodic Acid Vapor Treatment of Oxo‐Graphene Thin Films

Advanced Materials Technologies, EarlyView.
The double self‐assembly (DSA) method applied to oxo‐graphene (oxo‐G) flakes followed by hydroiodic acid (HI) vapor treatment and low‐temperature annealing yields highly conductive, optically transparent thin films with the potential for applications in electronic and optoelectronic devices.
Arindam Konar, David Kaiser, Guobin Jia, Hamid Reza Rasouli, Janis Köster, Christof Neumann, Andrea Dellith, Uwe Hübner, Christian E. Halbig, Siegfried Eigler, Ute Kaiser, Benjamin Dietzek‐Ivanšić, Jonathan Plentz, Andrey Turchanin   +13 more
wiley   +1 more source

Channelization for Multi-Standard Software-Defined Radio Base Stations [PDF]

, 2011
As the number of radio standards increase and spectrum resources come under more pressure, it becomes ever less efficient to reserve bands of spectrum for exclusive use by a single radio standard. Therefore, this work focuses on channelization structures
Palomo Navarro, Alvaro
core   +2 more sources

Multi Beam Dielectric Lens Antenna for 5G Base Station

Sensors, 2020
In the 5G mobile system, new features such as millimetre wave operation, small cell size and multi beam are requested at base stations. At millimetre wave, the base station antennas become very small in size, which is about 30 cm; thus, dielectric lens ...
Farizah Ansarudin, Tharek Abd Rahman, Yoshihide Yamada, Nurul Huda Abd Rahman, Kamilia Kamardin   +4 more
doaj   +1 more source

Multimodal Human–Robot Interaction Using Human Pose Estimation and Local Large Language Models

Advanced Robotics Research, EarlyView.
A multimodal human–robot interaction framework integrates human pose estimation (HPE) and a large language model (LLM) for gesture‐ and voice‐based robot control. Speech‐to‐text (STT) enables voice command interpretation, while a safety‐aware arbitration mechanism prioritizes gesture input for rapid intervention.
Nasiru Aboki, Ilche Georgievski, Marco Aiello   +2 more
wiley   +1 more source

Optimizing time and space MIMO antenna system for frequency selective fading channels [PDF]

, 2001
Smart or adaptive antennas promise to provide significant increases in system capacity and performance in wireless communication systems. In this paper, we investigate the use of adaptive antennas at the base and mobile stations, operating jointly, to ...
Letaief, KB, Murch, RD, Wong, KK, Letaief, Khaled Ben, Wong, Kai Kit, Murch, Ross D.   +5 more
core   +1 more source