Ranging Performance of the IEEE 802.15.4a UWB Standard under FCC/CEPT Regulations
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...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/218930 |
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| Summary: | 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. |
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| ISSN: | 2090-0147 2090-0155 |