Recent Advances in Wireless Indoor Localization

PhD Qualifying Examination


Title: "Recent Advances in Wireless Indoor Localization"

by

Miss Jiang XIAO


Abstract:

Nowadays indoor location-based services (LBSs) have been closely and 
inseparably related to people’s daily life. The most essential module in 
such prevalent LBSs is to determine the location of the object, known as 
indoor localization. With marvelous development of wireless systems in 
recent years, wireless technologies have been applied to support myriad of 
LBSs.

In this paper, we survey the existing recent advances for wireless indoor 
localization in two main categories, namely device-based and 
device-free, according to whether specific device is carried by the 
target. The most commonly device carried by people is smartphone. With a 
variety of built-in hardware (e.g., GPS, camera, WiFi, FM radio and 
inertial sensors), this mobile platform constitutes a good possibility 
for indoor localization. We present in-depth analysis of corresponding 
techniques categorized by different modal, including schemes with single 
technique, and data fusion methods using multiple techniques. We also 
figure out the rationale of techniques relying on dedicated hardware such 
as Ultrasonic radar, Infrared and RFID. In addition, we comprehensively 
compare these techniques and summarize the results on accuracy, cost, 
scalability and energy consumption. For specific scenarios like intrusion 
detection and safety precaution when device-based methods are 
impractical, device-free approaches are more promising. We investigate 
device-free passive (DfP) localization systems leveraging Ultrasonic 
radar, Infrared, RFID and WiFi, and compare their performance in multiple 
dimensions.

Furthermore, we take a first look at the emerging important technical 
challenges faced by both categories. To confront these newly challenges, 
we point out some potential future research directions.


Date:			Wednesday, 20 March 2013

Time:	 		4:00pm - 6:00pm

Venue:   		Room 4480
 		        Lifts 25/26

Committee Members:	Prof. Lionel Ni (Supervisor)
  			Prof. Qian Zhang (Chairperson)
  			Dr. Lei Chen
  			Dr. Ke Yi


**** ALL are Welcome ****