Peer-to-peer wireless ultrawide-band localization of fast-moving entities

This thesis presents peer-to-peer localization techniques such that a group of mobile nodes can continuously track its topology, without relying on external infrastructure. Ultrawide-band (UWB) radios worn by each node (humans in our case) perform time-of-flight (TOF) measurements between different node pairs, ultimately determining the group topology. The key challenge pertains to the selection of which TOF measurements should be performed, since not all are needed to determine the topology. We show that phenomena like dilution of precision (DOP) and signal occlusion warrant careful node selection; otherwise, the localization accuracy degrades severely. Moreover, we show that the broadcast nature of wireless channels can be exploited to pipeline more TOF measurements in a smaller window of time. Of course, all these design decisions must survive the lack of clock synchronization, fast mobility and rotations of the nodes, and link quality degradation

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2018

Author dc:creator

• Ravaioli, Umberto J.

Contributors dc:contributor

• Choudhury, Romit R.

• wireless
• localization
• dop
• dilution of precision
• occlusion
• mds
• relative
• peer-to-peer
• ultra-wideband
• uwb
• two-way ranging
• twr

Statement dc:rights

• Copyright 2018 Umberto Ravaioli

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/101316

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/101316