Improving Data Delivery Performance in Wireless Sensor Networks

The Hong Kong University of Science and Technology
Department of Computer Science and Engineering


PhD Thesis Proposal Defence


Title: "Improving Data Delivery Performance in Wireless Sensor Networks"

by

Mr. Jiliang Wang


ABSTRACT:

A wireless sensor network (WSN) typically consists of a large number of 
resource constrained sensor motes， spanning in a large field for data 
collection. Data delivery is usually achieved with multi-hop transmission 
along a sequence of nodes. Thus multi-hop data delivery is a fundamental 
issue in  WSNs. Based on a real world environment monitoring sensor 
network project GreenOrbs, this proposal addresses three key aspects for 
improving data delivery performance in wireless sensor networks, i.e., 
improving path quality measurement and presenting a comprehensive path 
quality estimation metric, providing a more practical and efficient 
topology discovery method and further introducing a optimal packet 
scheduling algorithm to balance workloads among sensor motes for a 
low-duty-cycled network in which motes periodically wake up to save 
energy. Through intensive simulations and real world implementations, I 
evaluate the performance of the proposed methods in a real system and 
verify the applicability. The results show that the proposed approaches 
are effective and efficient.


Date:                   Tuesday, 19 April 2011

Time:                   10:00am - 12:00noon

Venue:                  Room 4483
                         lifts 25/26

Committee Members:      Dr. Yunhao Liu (Supervisor)
                         Dr. Jogesh Muppala (Chairperson)
                         Dr. Lin Gu
                         Dr. Qiong Luo


**** ALL are Welcome ****