Results 11 to 20 of about 9,330,147 (219)

Ultra wideband gigabit powerline communication [PDF]

open access: yes, 2009
PhDPowerline Communication (PLC) has long been established for low data rate applications by the electric supply companies. Since 1991, the European CENELEC standard EN 50065 has ruled the use of 3 - 148.5KHz frequency range for narrow band PLC ...
Chen, Shuxian
core   +4 more sources

Radio channel characterisation and system-level modelling for ultra wideband body-centric wireless communications [PDF]

open access: yes, 2012
PhDThe next generation of wireless communication is evolving towards user-centric networks, where constant and reliable connectivity and services are essential.
Abbasi, Qammer Hussain
core   +4 more sources

Ultra-wideband radio signals distribution in FTTH networks [PDF]

open access: yes, 2008
The use of an ultra-wideband (UWB) radio technique is proposed as a viable solution for the distribution of high-definition audio/video content in fiber-to-the-home (FTTH) networks.
Roberto Llorente   +13 more
core   +1 more source

A reconfigurable wideband and multiband antenna using dual-patch elements for compact wireless devices [PDF]

open access: yes, 2012
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 IEEEA reconfigurable wideband and multiband C-Slot patch antenna with dual-patch elements is proposed and studied.
AbuTarboush, HF   +26 more
core   +1 more source

Experimental Investigation on Wideband Optical Frequency Comb Generation Based on a Gain-Switched 1550 nm Multi-Transverse Mode Vertical-Cavity Surface-Emitting Laser Subject to Dual Optical Injection

open access: yesIEEE Access, 2020
A scheme for generating wideband optical frequency comb (OFC) is proposed and experimentally investigated based on a master-slave system. In such a system, a tunable optical resource and a distributed feedback semiconductor laser are utilized as master ...
Wen-Yan Yang   +11 more
doaj   +1 more source

Initial synchronisation of wideband and UWB direct sequence systems: single- and multiple-antenna aided solutions [PDF]

open access: yes, 2012
This survey guides the reader through the open literature on the principle of initial synchronisation in single-antenna-assisted single- and multi-carrier Code Division Multiple Access (CDMA) as well as Direct Sequence-Ultra WideBand (DS-UWB) systems ...
SeungHwan Won   +3 more
core   +1 more source

Ranging Performance of the IEEE 802.15.4a UWB Standard under FCC/CEPT Regulations

open access: yesJournal of Electrical and Computer Engineering, 2012
The IEEE 802.15.4a standard for wireless sensor networks is designed for high-accuracy ranging using ultra-wideband (UWB) signals. It supports coherent and noncoherent (energy detector) receivers, thus the performance-complexity-tradeoff can be decided ...
Thomas Gigl   +3 more
doaj   +1 more source

Design of Wideband GHz Electric Field Sensor Integrated with Optical Fiber Transmission Link for Electromagnetic Pulse Signal Measurement

open access: yesSensors, 2018
The detection of high frequency overvoltage and partial discharge is of great significance in evaluating the insulation condition of high-voltage power equipment.
Guogang Zhang   +5 more
doaj   +1 more source

A wideband RF mixing-DAC achieving IMD<-82 dBc up to 1.9 GHz [PDF]

open access: yes, 2016
This paper presents a highly linear wideband Mixing-DAC architecture. A current-steering DAC core and a mixer are co-integrated at a unit current-cell level. A 1 bit DAC output stage is cascoded by a 1 bit mixer to form the Mixing-DAC current cell.
Geelen, G.J.G.M.   +9 more
core   +2 more sources

Performance evaluation of OFDM and impulse-radio ultra-wideband over fiber distribution for in-building networks [PDF]

open access: yes, 2009
This paper reports the compared performance of the two main ultra-wideband (UWB) implementations, OFDM-based (OFDM-UWB) and impulse-radio UWB, when transmitted over optical fiber for in-building communications employing external electro-optic modulation.
Roberto Llorente   +7 more
core   +1 more source

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