[SSC] Dr Ganjali's Talk Time Changed to 13:00 to 14:00

[mortazavi at ce.sharif.edu]

The Time of Dr Gangali's Talk has been moved to 13:00 to 14:00, Saturday
17th of June ( 26 khordad ):


The Students Scientific Chapter announces:

Seminar with the title of:
Power Efficient Rate Scheduling in Wireless Links
Using Computational Geometry

a seminar by Dr Yashar Ganjali

Saturday, 26th of Khordad, from 13:00 to 14:00
Kharazmi hall CE department


Abstract:

Energy efficiency has become increasingly critical in designing and
operating wireless networks, especially for mobile ad hoc networks
consisting of portable mobile wireless computing/communication devices
powered by limited battery capacity. Since the energy required to
transmit a given amount of data is a convex and monotonically increasing
function of the transmission rate, theoretically one can improve energy
efficiency by transmitting data at lower rates. Low data rates, however,
result in longer transmission duration and larger communication delay at
receiving end, which is usually undesirable. How to optimally schedule
transmission process to both minimize the total power consumption and
observe all  time constraints (available times and transmission deadlines)
is a  challenging and interesting problem. In this talk, I propose a
technique to solve the above rate scheduling problem by transforming it
into finding the shortest path between two vertices of a two dimensional
polygon, which yields an elegant analytical solution and easy-to-prove
optimality. This is the first solution to the rate scheduling problem in
its general form.This is a joint work with Mingjie Lin from Stanford
University.


Biography

Yashar Ganjali is an assistant professor of Computer Science at
University of Toronto. He received a BS degree in Computer Engineering
from Sharif University of Technology, and an MS in Computer Science from
University of Waterloo. He has a PhD in Electrical Engineering from
Stanford
University.
His PhD dissertation focuses on buffer sizing for Internet routers. The
goal is to determine the impact of reducing the buffer size in core
routers from millions of packets to just tens of packets, and thus
exploring the possibility of building all-optical networks. He has
collaborated with Sprint Advanced Technology Labs, Level 3 Communications,
Lucent Technologies, Internet2, and Verizon Laboratories on validation of
the buffer sizing results. His other research interests include analysis
and design of high performance switches, scheduling algorithms, congestion
control, routing protocols, and network optimization