TY - GEN
T1 - Multipath triangulation
T2 - 16th ACM International Conference on Mobile Systems, Applications, and Services,MobiSys 2018
AU - Soltanaghaei, Elahe
AU - Kalyanaraman, Avinash
AU - Whitehouse, Kamin
N1 - This work was funded in part by NSF grants 1305362 and 1739333. We thank our shepherd Souvic Sen and the anonymous reviewers for their valuable feedback. We also thank our colleagues at Stanford and Prof. Robert M. Weikle for technique advice on device calibration and Colin Rooney, the undergraduate assistant, for helping to build the platform.
PY - 2018/6/10
Y1 - 2018/6/10
N2 - Decimeter-level localization has become a reality, in part due to the ability to eliminate the effects of multipath interference. In this paper, we demonstrate the ability to use multipath reflections to enhance localization rather than throwing them away. We present Multipath Triangulation, a new localization technique that uses multipath reflections to localize a target device with a single receiver that does not require any form of coordination with any other devices. In this paper, we leverage multipath triangulation to build the first decimeter-level WiFi localization system, called MonoLoco, that requires only a single access point (AP) and a single channel, and does not impose any overhead, data sharing, or coordination protocols beyond standard WiFi communication. As a bonus, it also determines the orientation of the target relative to the AP. We implemented MonoLoco using Intel 5300 commodity WiFi cards and deploy it in four environments with different multipath propagation. Results indicate median localization error of 0.5m and median orientation error of 6.6 degrees, which are comparable to the best performing prior systems, all of which require multiple APs and/or multiple frequency channels. High accuracy can be achieved with only a handful of packets.
AB - Decimeter-level localization has become a reality, in part due to the ability to eliminate the effects of multipath interference. In this paper, we demonstrate the ability to use multipath reflections to enhance localization rather than throwing them away. We present Multipath Triangulation, a new localization technique that uses multipath reflections to localize a target device with a single receiver that does not require any form of coordination with any other devices. In this paper, we leverage multipath triangulation to build the first decimeter-level WiFi localization system, called MonoLoco, that requires only a single access point (AP) and a single channel, and does not impose any overhead, data sharing, or coordination protocols beyond standard WiFi communication. As a bonus, it also determines the orientation of the target relative to the AP. We implemented MonoLoco using Intel 5300 commodity WiFi cards and deploy it in four environments with different multipath propagation. Results indicate median localization error of 0.5m and median orientation error of 6.6 degrees, which are comparable to the best performing prior systems, all of which require multiple APs and/or multiple frequency channels. High accuracy can be achieved with only a handful of packets.
KW - Channel state information
KW - CSI
KW - Localization
KW - Multipath propagation
KW - Multipath triangulation
KW - WiFi
UR - http://www.scopus.com/inward/record.url?scp=85051558962&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051558962&partnerID=8YFLogxK
U2 - 10.1145/3210240.3210347
DO - 10.1145/3210240.3210347
M3 - Conference contribution
AN - SCOPUS:85051558962
T3 - MobiSys 2018 - Proceedings of the 16th ACM International Conference on Mobile Systems, Applications, and Services
SP - 376
EP - 388
BT - MobiSys 2018 - Proceedings of the 16th ACM International Conference on Mobile Systems, Applications, and Services
PB - Association for Computing Machinery
Y2 - 10 June 2018 through 15 June 2018
ER -