On the Trade-off Between Accuracy and Delay in UWB Navigation

We investigate the relation between medium access control (MAC) delay and ultra-wide bandwidth (UWB) tracking accuracy. We quantify this relation by deriving fundamental lower bounds on tracking accuracy and MAC delay for arbitrary finite networks. Our main finding is that the traditional ways to in...

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Veröffentlicht in:	IEEE communications letters 2013-01, Vol.17 (1), p.39-42
Hauptverfasser:	Garcia, G. E., Muppirisetty, L. S., Wymeersch, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Access control Access methods and protocols, osi model Accuracy Applied sciences Delay Distance measurement Exact sciences and technology IEEE 802.15 Standards Lower bounds MAC delay Mathematical analysis Navigation Networks positioning S-TDMA Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Teleprocessing networks. Isdn Time division multiple access Tracking Tradeoffs Transmission and modulation (techniques and equipments) Ultra-wideband Upper bound
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Beschreibung
Zusammenfassung:	We investigate the relation between medium access control (MAC) delay and ultra-wide bandwidth (UWB) tracking accuracy. We quantify this relation by deriving fundamental lower bounds on tracking accuracy and MAC delay for arbitrary finite networks. Our main finding is that the traditional ways to increase accuracy (e.g., increasing the number of anchors or the transmission power) may lead to large MAC delays. We evaluate two methods to mitigate these delays.
ISSN:	1089-7798 1558-2558 1558-2558
DOI:	10.1109/LCOMM.2012.120312.121542