Title
Portable low-power IR-UWB system
Abstract
Indoor environments are typically complex wireless propagation channels with numerous multi-paths created by closely spaced scattering objects. The ability to resolve these multi-paths is very important for good ranging resolution and positioning accuracy. Impulse-Radio Ultra-Wideband (IR-UWB) is a promising technology to fulfill these usage requirements in indoor cluttered environment. A portable low-power IR-UWB system for indoor channel characterization and time of arrival ranging measurements is presented in this paper. The system consists of battery powered transmitters and a four channel receiver array system powered from the USB port of a notebook computer. A novel repetitive coding and stroboscopic sampling technique are used to reduce power consumption while maintaining precise ranging using time of arrival based technique. The repetitive coding also enables data communication capability through thecoding also enables data communication capability through the same wireless channel. Power saving and precision ranging is achieved by optimization of the circuit design for ultra short pulses as well as system architecture and operation. The transmitted pulse is captured by low-cost energy-detection receivers with analogue to digital converters running at around 3.2MHz rate.
Year
DOI
Venue
2014
10.1109/WF-IoT.2014.6803213
WF-IoT
Keywords
Field
DocType
impulse radio ultrawideband,UWB,time of arrival ranging,ultra wideband communication,Indoor Channel Characterization,notebook computer,repetitive coding,stroboscopic sampling technique,radio networks,wireless channels,portable low-power IR-UWB system,indoor environments,Impulse Radio,wireless propagation channels,indoor channel characterization
Wireless,Computer science,Communication channel,Computer network,Circuit design,Ranging,Systems architecture,Computer hardware,Mobile telephony,Time of arrival,Embedded system,USB
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
1
Name
Order
Citations
PageRank
Choi Look Law18912.49