Maximal operating distance estimation for ranging in IEEE 802.15.4a Ultra Wideband

2010 ◽  
Author(s):  
Thomas Gigl ◽  
Florian Troesch ◽  
Josef Preishuber-Pfluegl ◽  
Klaus Witrisal
Keyword(s):  
Distance Estimation ◽  
Ultra Wideband ◽  
Ieee 802.15.4A ◽  
Operating Distance

scholarly journals Improved energy detection receiver for ranging in IEEE 802.15.4a standard

2017 ◽  
Vol 10 (2) ◽  
pp. 141-148
Author(s):  
Abdelmadjid Maali ◽  
Geneviève Baudoin ◽  
Ammar Mesloub
Keyword(s):  
Estimation Algorithm ◽  
Energy Detection ◽  
Ultra Wideband ◽  
Line Of Sight ◽  
Accurate Estimation ◽  
Time Of Arrival ◽  
Power Delay Profile ◽  
Wideband Signals ◽  
Toa Estimation ◽  
Ieee 802.15.4A

In this paper, we propose a novel energy detection (ED) receiver architecture combined with time-of-arrival (TOA) estimation algorithm, compliant to the IEEE 802.15.4a standard. The architecture is based on double overlapping integrators and a sliding correlator. It exploits a series of ternary preamble sequences with perfect autocorrelation property. This property ensures coding gain, which allows an accurate estimation of power delay profile (PDP). To improve TOA estimation, the interpolation of PDP samples is proposed and the architecture is validated by using an ultra-wideband signals measurements platform. These measurements are carried out in line-of-sight and non-line-of-sight multipath environments. The experimental results show that the ranging performances obtained by the proposed architecture are higher than those obtained by the conventional architecture based on a single-integrator in both LOS and NLOS environments.

Ultra-Wideband Radio Pulse Shaping Filter Design for IEEE 802.15.4a Transmitter

2009 ◽  
Author(s):  
Ayse Adalan ◽  
Michael Fischer ◽  
Thomas Gigl ◽  
Klaus Witrisal ◽  
Arpad L. Scholtz ◽  
...  
Keyword(s):  
Pulse Shaping ◽  
Filter Design ◽  
Radio Pulse ◽  
Ultra Wideband ◽  
Shaping Filter ◽  
Ieee 802.15.4A ◽  
Wideband Radio

High-band ultra-wideband transmitter for IEEE 802.15.4a standard

2013 ◽  
Author(s):  
Denys Martynenko ◽  
Gunter Fischer ◽  
Oleksiy Klymenko ◽  
Dan Kreiser ◽  
Sonom Olonbayar
Keyword(s):  
Ultra Wideband ◽  
Ieee 802.15.4A ◽  
High Band

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

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Thomas Gigl ◽  
Florian Troesch ◽  
Josef Preishuber-Pfluegl ◽  
Klaus Witrisal
Keyword(s):  
Wireless Sensor Networks ◽  
High Accuracy ◽  
Ultra Wideband ◽  
Wireless Sensor ◽  
Operating Range ◽  
Link Budget ◽  
Coherent Receivers ◽  
Ieee 802.15.4A ◽  
Energy Detectors ◽  
Pulse Spacing

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 by the implementer. In this paper, the maximum operating range and the maximum allowed pathloss are analyzed for ranging and both receiver types, under FCC/CEPT regulations. The analysis is based on the receiver working points and a link budget calculation assuming a frees-pace pathloss model. It takes into consideration the parameters of the preamble, which influence the transmit power allowed by the regulators. The best performance is achieved with the code sequences having the longest pulse spacing. Coherent receivers can achieve a maximum operating range up to several thousand meters and energy detectors up to several hundred meters.

scholarly journals On Location Estimation Technique Based of the Time of Flight in Low-power Wireless Systems

2015 ◽  
Vol 15 (2) ◽  
pp. 58-63 ◽  
Author(s):  
Miroslav Botta ◽  
Milan Simek ◽  
Ondrej Krajsa ◽  
Vladimir Cervenka ◽  
Tamas Pal
Keyword(s):  
Low Power ◽  
Time Of Flight ◽  
Distance Estimation ◽  
Wireless Systems ◽  
Location Estimation ◽  
Application Research ◽  
Estimation Algorithms ◽  
Sensor Networking ◽  
Ieee 802.15.4A ◽  
The Internet Of Things

Abstract This study deals with the distance estimation issue in low-power wireless systems being usually used for sensor networking and interconnecting the Internet of Things. There is an effort to locate or track these sensor entities for different needs the radio signal time of flight principle from the theoretical and practical side of application research is evaluated. Since these sensor devices are mainly targeted for low power consumption appliances, there is always need for optimization of any aspects needed for regular sensor operation. For the distance estimation we benefit from IEEE 802.15.4a technology, which offers the precise ranging capabilities. There is no need for additional hardware to be used for the ranging task and all fundamental measurements are acquired within the 15.4a standard compliant hardware in the real environment. The proposed work examines the problems and the solutions for implementation of distance estimation algorithms for WSN devices. The main contribution of the article is seen in this real testbed evaluation of the ranging technology.

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