EE Seminar: Collaborative Time of Arrival (CToA)

30 באפריל 2018, 15:00 
חדר 011, בניין כיתות חשמל 

(The talk will be given in English)


Speaker:     Dr. Ofer Bar Shalom


Monday, April 30th, 2018
15:00 - 16:00

Room 011, Kitot Bldg., Faculty of Engineering


Collaborative Time of Arrival (CToA) 




Collaborative time of arrival (CToA) is a time-delay based geolocation protocol, designed for taking the user capacity of IEEE802.11/Wi-Fi-based, geolocation systems to the extreme. The protocol is broadcast-based and leverages the IEEE802.11 fine timing measurements (FTM) capabilities, enabled in state-of-the-art Wi-Fi chip-sets to support two concurrent operation modes: the “client-mode” enables “GPS-like” operation indoors, and allows an unlimited number of clients to estimate their position and navigate indoors, without exposing their presence in the network. The “network-mode” is designed for large-scale asset-tracking and big-data analytics applications and enables a network positioning server to pinpoint and track the location of thousands of Wi-Fi-enabled objects, where the capacity is limited mostly by the server's processing capabilities. 


The presentation will cover the principles of the protocol and the mathematical background of the position estimation algorithms. In addition, theoretical analysis of the expected positioning accuracy and real-life system performance examples will be provided. A whitepaper describing the protocol is available on IEEE Mentor. 



Ofer Bar-Shalom received his B.Sc. in mechanical engineering and his M.Sc. and Ph.D. in electrical engineering in 1997, 2001, and 2015 (respectively), all from Tel-Aviv University. He has been involved in cellular and wireless connectivity systems development for over 20 years. Currently, he is a researcher with Intel's Location Core Division.


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