On the Trade-off Between Accuracy and Delay in UWB navigation
Journal article, 2013
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.
MAC delay
positioning
Ultra-wideband
navigation
S-TDMA
Author
Gabriel Garcia
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Srikar Muppirisetty
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Henk Wymeersch
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
IEEE Communications Letters
1089-7798 (ISSN) 15582558 (eISSN)
Vol. 17 1 39-42 6374725Robust and Fault-Tolerant Cooperative Positioning
Swedish Research Council (VR) (2010-5889), 2011-01-01 -- 2013-12-31.
Cooperative Situational Awareness for Wireless Networks (COOPNET)
European Commission (EC) (EC/FP7/258418), 2011-05-01 -- 2016-04-30.
Areas of Advance
Information and Communication Technology
Subject Categories (SSIF 2011)
Telecommunications
Signal Processing
DOI
10.1109/LCOMM.2012.120312.121542