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Ultra-wideband (UWB)

Low-profile, Ultra Wideband and Dual Polarized Antennas and Feeding Systems

Low-profile, Ultra Wideband and Dual Polarized Antennas and Feeding Systems

... “Ultra Wideband Wireless Communication” [6] claim that new generations of wireless mobile radio systems aim to provide flexible data rates (including high, medium, and low data rates) and a wide variety of ...

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Direction-Aided Indoor Positioning Leveraging Ultra-Wideband Radio

Direction-Aided Indoor Positioning Leveraging Ultra-Wideband Radio

... I. I NTRODUCTION Location-based service is one of the newly emerging tech- nologies having potential for numerous applications in the commercial and public safety fields. For example, museum needs a visitor tracking ...

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Resource Allocation Strategies and Linear Precoded OFDM Optimization for Ultra-Wideband Communications

Resource Allocation Strategies and Linear Precoded OFDM Optimization for Ultra-Wideband Communications

... 1 Ultrawideband communications LTRA - WIDEBAND (UWB) is a fast emerging technology that has attracted considerable interest in the research and standardization communities for wireless communica- ...

208

Ultra Wideband OFDM Systems: Channel Estimation and Improved dtection Accounting for Estimation Inaccuracies

Ultra Wideband OFDM Systems: Channel Estimation and Improved dtection Accounting for Estimation Inaccuracies

... ou Ultra Wideband (UWB), est une technique de transmission radio´elec- trique qui consiste ` a utiliser des signaux s’´etalant sur une large bande de fr´equences, typique- ment de l’ordre de 500 MHz ` a ...

215

Millimeter-Wave Ultra-Wideband Six-Port Receiver Using Cross-Polarized Antennas

Millimeter-Wave Ultra-Wideband Six-Port Receiver Using Cross-Polarized Antennas

... Correspondence should be addressed to Nazih Khaddaj Mallat, nazih@ieee.org Received 19 January 2009; Revised 4 May 2009; Accepted 3 July 2009 Recommended by Claude Oestges This paper presents a new low-cost ...

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Parametric Modeling of small terminals and Multiband or Ultra wideband Antennas

Parametric Modeling of small terminals and Multiband or Ultra wideband Antennas

... range Ultra Wideband (UWB) communication systems the factors like device miniaturization and high speed data rate create big challenges for antenna ...

228

Fingerprinting localization based on neural networks and ultra-wideband signals

Fingerprinting localization based on neural networks and ultra-wideband signals

... In this direction, this paper presents a contribution to fingerprinting based localization techniques using neural net- works and ultra-wideband CIR. We start in section II by introducing the fingerprinting ...

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Reliable Cognitive Ultra Wideband Communication Systems Under Coexistence Constraints

Reliable Cognitive Ultra Wideband Communication Systems Under Coexistence Constraints

... R´ ESUM´ E La croissance rapide des syst` emes de communication sans fil et la raret´ e du spectre ont motiv´ e les industries et les fournisseurs ouvrant dans le domaine de communication sans fil de d´ evelopper des ...

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Resource Allocation Strategies and Linear Precoded OFDM Optimization for Ultra-Wideband Communications

Resource Allocation Strategies and Linear Precoded OFDM Optimization for Ultra-Wideband Communications

... 1 Ultrawideband communications LTRA - WIDEBAND (UWB) is a fast emerging technology that has attracted considerable interest in the research and standardization communities for wireless communica- ...

208

Impact of MAC Scheduling on Positioning Accuracy for Motion Capture with Ultra Wideband Body Area Networks

Impact of MAC Scheduling on Positioning Accuracy for Motion Capture with Ultra Wideband Body Area Networks

... ABSTRACT Wireless Body Area Networks (WBANs) have recently emer- ged as a solution to enable effective location-aware appli- cations. The rapid mobility of nodes is the most specific problem of this kind of networks and ...

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The future of ultra-wideband localization in RFID

The future of ultra-wideband localization in RFID

... Abstract—In the new scenarios foreseen by the Internet of Things (IoT), industrial and consumer systems will be required to detect and localize tagged items with high accuracy using cheap, energy autonomous, and ...

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Reconnaissance d’activités dans un habitat intelligent à l’aide de radars Ultra-WideBand

Reconnaissance d’activités dans un habitat intelligent à l’aide de radars Ultra-WideBand

... radars ultra-wideband ? Ici, le domaine de recherche renvoie aux méthodes et techniques d’intelligence artificielle qui seront recensées et expliquées au Chapitre ...

166

Ultra wideband stacked rectangular
dielectric resonator antenna.

Ultra wideband stacked rectangular dielectric resonator antenna.

... 3.2 Ultra-wideband dielectric resonator antennas (two layers of DRs) An ultra-wideband (UWB) technology was approved by the US Federal Communications Commission to allow an unlicensed band ...

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Semiconductor optical amplifiers for ultra-wideband optical systems

Semiconductor optical amplifiers for ultra-wideband optical systems

... Fig. 3.5: Scheme of the SOA module using a polarization diversity strategy 3.1.2 Chip design Once solved the issue of polarization diversity, it was necessary to tailor the chip to obtain the features which are expected ...

156

Ultra-wideband positioning for assistance robots for elderly

Ultra-wideband positioning for assistance robots for elderly

... Commercial systems that use UWB sensors for indoor asset tracking are already available. For example, Zebra Enterprise Solutions [14] which uses a localization algo- rithm based on time-difference-of-arrival (TDoA) ...

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Ultra-wideband GCPW-MS transitions for characterising microwave and photonic components based on thin polymer

Ultra-wideband GCPW-MS transitions for characterising microwave and photonic components based on thin polymer

... For applications requiring short line lengths such as flip-chip intercon- nection [7] , the bandwidth can be significantly improved. Measurement and simulation results of the transition with a rectangular stub with L ¼ 5 ...

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Ultra-wideband Ge-rich silicon germanium mid-infrared polarization rotator with mode hybridization flattening

Ultra-wideband Ge-rich silicon germanium mid-infrared polarization rotator with mode hybridization flattening

... an ultra-wideband polarization ...a wideband polarization ...an ultra-wideband operation and a large fabrication tolerance of ± 100 ...

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Antenna Ultra Wideband Enhancement by Non-Uniform Matching

Antenna Ultra Wideband Enhancement by Non-Uniform Matching

... 1 Innov’COM, Sup’COM, University of Carthage, Tunisia 2 LabTIC, ENSA de Tanger, Tanger BP 1818, Morocco 3 ENSEEIHT, France Abstract—In this paper, antenna ultra wideband enhancement by non-uniform matching ...

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Ultra-Wideband and Wide-Angle Microwave Metamaterial Absorber

Ultra-Wideband and Wide-Angle Microwave Metamaterial Absorber

... ]. Wideband behavior is difficult to obtain for [ 5 , 6 ], but this solution is very ...a wideband absorber is obtained, but it is at the expense of the ...realize ultra-wideband absorbers [ 9 ...

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Indoor Experimental Evaluation of Ultra-wideband MU-MISO TRDMA

Indoor Experimental Evaluation of Ultra-wideband MU-MISO TRDMA

... In this paper, we evaluated the performance of UWB MISO TRDMA, experimentally and in simulation for indoor transmission for the first time to the best of our knowledge.. An experimental [r] ...

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