TU Berlin

Internet Network ArchitecturesAll Publications

Page Content

to Navigation

All publications

Robust Non-Coherent Timing Acquisition in IEEE 802.15.4a IR-UWB Networks
Citation key FML-RNTAIRUWBN-09
Author Flury, Manuel and Merz, Ruben and Le Boudec, Jean-Yves
Title of Book Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '09)
Pages 1642–1646
Year 2009
ISBN 978-1-4244-5122-7
Online ISBN 978-1-4244-5123-4
DOI http://dx.doi.org/10.1109/PIMRC.2009.5450068
Location Tokyo, Japan
Month September
Abstract Non-coherent energy-detection receivers are an attractive choice for IEEE 802.15.4a networks. They can exploit the ranging capabilities and the multipath resistance of impulse-radio ultra-wide band (IR-UWB) at a low complexity. However, IEEE 802.15.4a receivers operate with interference created by uncontrolled piconets and an uncoordinated medium access control layer. The performance of an energy-detection IR-UWB receiver is greatly degraded in such scenarios, for both timing acquisition and decoding. In this paper, we focus on timing acquisition: we present PICNIC, a robust and low-complexity algorithm that allows for reliable timing acquisition with an IR-UWB energy-detection receiver in the presence of multi-user interference (MUI), even in near-far scenarios. At the cost of a negligible performance reduction in single-user scenarios, PICNIC outperforms classic timing acquisition algorithms by up to two orders of magnitude if MUI is present. Furthermore, PICNIC exhibits a near perfect capture property: if several transmitters compete for timing acquisition at the receiver, one signal will be acquired with practically no false detection.
Link to publication Download Bibtex entry


Quick Access

Schnellnavigation zur Seite über Nummerneingabe