"Value of Partial Knowledge in Wireless Systems"

Dr. Vaneet Aggarwal, AT&T Shannon Labs

March 9th (Friday), 10:00am
Harold Frank Hall, RM 4164 (ECE Conference Room)

The recent surge in wireless data usage, largely fueled by smart-phones like the iPhone, is rapidly bringing current cellular networks to a grinding halt. Thus, we must utilize the spectrum completely. In this talk, I will give few solutions for improving the performance of wireless systems. One of the main issues in wireless systems is that each node knows the network parameters only in its immediate neighborhood. Due to this local knowledge, individual nodes in the network have to decide transmission power and code-books without global knowledge of the network. What then is the value to a node of learning more about its immediate neighborhood, and what are the protocols that make optimal use of the local information? In this talk, I will provide some answers and introduce a principled framework for distributed decision making. One other issue in current wireless systems is that nodes cannot transmit and receive at the same time. I will demonstrate that the throughput of WiFi 802.11 systems can be doubled using new physical and MAC layer designs.

In this talk, I will also describe a part of my work in delivery of multiple real-time services using virtualization. The approach shows an improvement in the resource requirements for the real-time delivery of services based on real data.

About Dr. Vaneet Aggarwal:

Vaneet Aggarwal received the B.Tech. degree in 2005 from Indian Institute of Technology, Kanpur, India and the M.A. and Ph.D. degrees in 2007 and 2010, respectively from Princeton University, Princeton, NJ, USA, all in Electrical Engineering. He is currently Senior Member of Technical Staff at AT&T Labs-Research, Florham Park, NJ. His research interests are in applications of information and coding theory to wireless systems, and quantum error correction. Dr. Aggarwal was the recipient of Princeton University's Porter Ogden Jacobus Honorific Fellowship in 2009, which is typically received by an Electrical Engineering student once in thirteen years.

Hosted by: Professor U. Madhow