Stanford Networking Seminar

16:15PM, Tuesday December 13, 2011
Gates 104


Energy Efficient Protocols in Self-Aware Networks
 

Toktam Mahmoodi
King's College, London


About the talk:
Wired networks shape the backbone of the Internet, and energy resources in such networks, though not scarce, are costly. Moreover, energy consumption in this area is bound to rise unless serious efforts are made to achieve significant savings. In this talk, we will see how cognition and self-awareness in networks can be used to reduce the energy consumption of a number of network protocols. To this end, we start by introducing an energy-aware routing protocol, as it is known that energy consumption in today’s networks is highly confined to switching and routing centers. This protocol computes the minimum power multicast tree while the network is modeled as a neural network that can learn the QoS parameters as well as the power consumption. Using such a routing protocol, the network power consumption is bound to have a step-like behavior. This motivates the next step, which is to design an admission control policy that attempts to minimize the power consumption. Flows are admitted depending on their bandwidth, their lifetime, their admission delay constraints and the energy status of the network. If time permits, I will discuss the possibility of moving computational nodes to more energy efficient locations and the associated communication cost. I will present performance evaluations of the above protocols carried out in a networking testbed.

About the speaker:
Toktam Mahmoodi received the B.Sc. degree in Electrical Engineering form Sharif University of Technology, Tehran, Iran in 2002, and the Ph.D. degree in Telecommunications Engineering from King’s College London, London, UK in 2009. From 2006 to 2009, she was a researcher with the Core-4 Efficiency Programme of the Virtual Centre of Excellence in Mobile and Personal Communications (Mobile VCE). She also worked as a Postdoctoral research associate in the Intelligent Systems and Networks group of the Electrical & Electronic Engineering department of Imperial College London from Jan 2010 to July 2011. She is currently with the faculty of the Centre for Telecommunications Research, King's College London. Her current research interests include energy efficient network managements, network performance and QoS.