Extending Wi-Fi Functionality in PHY: From Transmission Media to Radar System

PhD Qualifying Examination


Title: "Extending Wi-Fi Functionality in PHY: From Transmission Media to 
Radar System"

by

Mr. Guanhua WANG


Abstract:

Generally, wireless signals are used for conveying data from the sender to 
the receiver. On-going research literature tries different ways of 
enhancing wireless network performance. In Physical layer (PHY), many 
novel technologies have been proposed, such as Multiple Input Multiple 
Output (MIMO), zigzag decoding, full duplex antenna, etc.

Recent research has extended the functionality of wireless signals into a 
new realm. More precisely, they push the limit of ISM (Industrial 
Scientific and Medical) band from data delivery to radiometric detection, 
including motion detection, recognition, localization, and even 
classification. We can now simply using wireless signals to detect motions 
through walls and recognize human gestures, or even detect and locate 
tumor inside our body. By detecting and analyzing signal reflection, these 
approaches enable Wi-Fi signals to "See" or "Sense" target objects. This 
kind of sensing works via wireless signals can be collectively referred to 
as "Wi-Fi Radar".

In this survey, we first summarize some recent literature that enhances 
wireless transmission performance in PHY and is also highly related to 
Wi-Fi Radar system design. Then, we survey state-of-the-art pioneer works 
in "Wi-Fi Radar". We mainly focus on the categories of motion detection, 
gesture recognition, localization and object classification. For each 
category, we summarize and compare related systems and their performance 
metrics. Last, we envision and discuss some potential future research 
opportunities on Wi-Fi radar area.


Date:			Wednesday, 14 May 2014

Time:                  	4:00pm - 6:00pm

Venue:                  Room 3501
                         Lifts 25/26

Committee Members:	Prof. Lionel Ni (Supervisor)
  			Prof. Qian Zhang (Chairperson)
  			Dr. Kai Chen
  			Dr. Pan Hui


**** ALL are Welcome ****