On the Trade-off Between Accuracy and Delay in Cooperative UWB Navigation
Paper in proceedings, 2013

In ultra-wide bandwidth (UWB) cooperative navigation, nodes estimate their position by means of shared information. Such sharing has a direct impact on the position accuracy and medium access control (MAC) delay, which needs to be considered when designing UWB navigation systems. We investigate the interplay between UWB position accuracy and MAC delay for cooperative scenarios. We quantify this relation through fundamental lower bounds on position accuracy and MAC delay for arbitrary finite networks. Results show that the traditional ways to increase accuracy (e.g., increasing the number of anchors or the transmission power) as well as inter-node cooperation may lead to large MAC delays. We evaluate one method to mitigate these delays.

Author

Gabriel Garcia

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Communication Systems

Srikar Muppirisetty

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Communication Systems

Henk Wymeersch

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Communication Systems

IEEE Wireless Communications and Networking Conference, WCNC

15253511 (ISSN)

1603-1608 6554803

Robust and Fault-Tolerant Cooperative Positioning

Swedish Research Council (VR), 2011-01-01 -- 2013-12-31.

Cooperative Situational Awareness for Wireless Networks (COOPNET)

European Commission (FP7), 2011-05-01 -- 2016-04-30.

Areas of Advance

Information and Communication Technology

Subject Categories

Communication Systems

Signal Processing

DOI

10.1109/WCNC.2013.6554803

ISBN

978-146735939-9

More information

Created

10/7/2017