| Speaker : | Prof. I-Hong Hou |
| | Texas A&M University |
| Date: | 27/11/2013
|
| Time: | 11:00 am - 12:00 pm |
| Location: | LINCS Meeting Room 40 |
Abstract
Wireless Peer-to-Peer (P2P) systems allow mobile users to obtain data
from nearby peers instead of the far away base station. It has the
benefits of reducing power consumption, increasing capacity, etc. An
important challenge for P2P networks is to incentivize users to
contribute by sharing the data that others need. Due to the
broadcasting nature of wireless transmissions, existing solutions for
wireline P2P networks cannot be applied. In this talk, we present two
non-monetary protocols for wireless P2P networks. We assume that each
mobile user aims to increase its download rate and to decrease its
transmission rate. We propose a fully distributed protocol where
mobile users determine which one to transmit through random backoff.
We derive a closed-form formulation for the Nash Equilibrium, and
propose a distributed mechanism under which strategies of mobile users
converge to the Nash Equilibrium. Next, we consider systems where a
centralized broker schedules transmissions for all mobile users. We
propose a scheduling policy for the broker, and demonstrate that the
policy is truthful in the sense that all mobile users maximize their
own utilities by reporting their true values to the broker.
Brief biography:
I-Hong Hou received the B.S. in Electrical Engineering from National
Taiwan University in 2004, and his M.S. and Ph.D. in Computer Science
from University of Illinois, Urbana-Champaign in 2008 and 2011,
respectively. He is currently an Assistant Professor at the
Department of Electrical and Computer Engineering of the Texas A&M
University. His research interests include wireless networks, wireless
sensor networks, real-time systems, distributed systems, and vehicular
ad hoc networks. URL: http://cesg.tamu.edu/faculty/ihong-hou/
