Paper Info
Title
Numerical and Experimental Evaluation of Error Estimation for Two-Way Ranging Methods.
Abstract
The Two-Way Ranging (TWR) method is commonly used for measuring the distance between two wireless transceiver nodes, especially when clock synchronization between the two nodes is not available. For modeling the time-of-flight (TOF) error between two wireless transceiver nodes in TWR, the existing error model, described in the IEEE 802.15.4-2011 standard, is solely based on clock drift. However, it is inadequate for in-depth comparative analysis between different TWR methods. In this paper, we propose a novel TOF Error Estimation Model (TEEM) for TWR methods. Using the proposed model, we evaluate the comparative analysis between different TWR methods. The analytical results were validated with both numerical simulation and experimental results. Moreover, we demonstrate the pitfalls of the symmetric double-sided TWR (SDS-TWR) method, which is the most highlighted TWR method in the literature because of its highly accurate performance on clock-drift error reduction when reply times are symmetric. We argue that alternative double-sided TWR (AltDS-TWR) outperforms SDS-TWR. The argument was verified with both numerical simulation and experimental evaluation results.
Year
DOI
Venue
2019
10.3390/s19030616
SENSORS
Keywords
Field
DocType
TEEM,TWR,AltDS-TWR,SDS-TWR,distance measurement,error analysis,delay effects,TOF error model
Distance measurement,Clock drift,Computer simulation,Wireless transceiver,Electronic engineering,Clock synchronization,Ranging,Engineering
Journal
Volume
Issue
ISSN
19
3.0
1424-8220
Citations 
PageRank 
References 
4
0.51
12
Authors
6
Name
Order
Citations
PageRank
Cung Lian Sang161.25
Michael Adams2216.52
Timm Hormann382.38
Marc Hesse4104.47
Mario Porrmann542050.91
U. Rückert6755103.61