I successfully passed my PhD defense on April 10, 2009. My PhD was supervised byDr. Jeff Andrews.
PhD Dissertation. Coexistence in Femtocell-aided Cellular Architectures (pdf version)
PhD defense slides (pdf version)
Here is a copy of my resume. Starting July 2009, I will be working in Texas Instruments.
Contact. cvikram AT mail DOT utexas DOT edu
Prior Experience
I have held internship positions at Texas Instruments
(Summer 2007 and 2008) and Freescale semiconductor (Summer 2006). Prior
to my PhD, I worked as a Staff Engineer at National Instruments,
Austin, TX from January 2003 to August 2005. I obtained my Masters'
degree at Rice University, Houston, TX in 2003 and my Bachelors' degree
from the Indian Institute of Technology, Kharagpur in 2000.
Dissertation. A four line summary
My dissertation focusses on radio interference management in heterogeneous cellular architrectures. Currently, cellular operators are augmenting conventional macrocell basestations with shorter range wireless hotspots. With universal frequency reuse, practical deployments will be challenged by cochannel interference from cellular users to hotspot users and vice versa. My research proposes and addresses how to combat this interference.
Patents
V. Chandrasekhar and J.G. Andrews, "Interference Management and Decentralized Channel Access Schemes in Hotspot-aided Cellular Networks," disclosed Nov. 2008, provisional filed Nov. 2008
Research
The surest way to increase the capacity of a wireless system is by getting the transmitters and receivers closer to each other which creates the dual benefits of higher quality links and more spatial reuse. In a network with nomadic users, this inevitably involves deploying more infrastructure, typically in the form of microcells, hotspots, distributed antennas, or relays. A less expensive alternative is the recent concept of femtocells--also called home base-stations--which are data access points installed by home users in the desire to get better indoor voice and data coverage. A two-tier network comprising a conventional macrocell overlaid with femtocell hotspots offers potential capacity benefits with low upfront costs to cellular operators. My research addresses the technical challenges inherent in such a heterogeneous cellular infrastructure for different physical layer technologies. More research is available here.
