Oct 2016: I will TPC co-chair for IEEE INFOCOM 2018 (The flagship networking conference)
Aug 2016: Ex-student Zizhan Zheng joins Tulane University as an Assistant Professor
Aug 2016: New $0.5 million NSF/CNS grant on relative localization of vehicles on the road
July 2016: BASIC (a genearalized version of SIC for uplink communication) accepted in MobiCom 2016.
July 2016: I am part of the smart city team . City of Columbus has won $140 million in funding from DOT and other sources.
(Click here for older news items)
I have a PhD from UIUC (2001), MS from MSU (1997) and BTech from IITD (1995). I was at Bell Labs from 2001 to 2003,
after which I have been at OSU.
My research has been primarily funded through National Science Foundation (NSF), DARPA,
Toyota and Honda. I have led multiple $1M+ cross-university, cross-disciplinary projects. I have advised 1 BS,
10 MS, 15 PhD students (including current 5 PhD students) and 1 postdoc during my career. The students
are placed in various positions in industry, industrial research labs as well as academia. I won the prestigious
NSF CAREER award in 2006. I am an IEEE fellow. I have served in the editorial board for 2 top
journals (TMC, TWC). I have chaired/co-chaired seven conferences, including MobiCom 2014, which is the topmost conference in
wireless networking and mobile computing and I have been on the steering committee of IWQoS. I have authored 100+ publications and 4 patents. My best papers include BuildSys 2017, WiOpt 2013 (Best Student Paper Award) and two were selected as best paper finalists (ACM Mobicom 2014, IEEE SECON 2007).
Active Research Projects
The focus of my research group is to make long-term impact in the area of wireless networking, sensing
and communication. My research group is actively engaged in finding answers
to fundamental questions in the broad areas listed below:
Smart and Connected Communities: We are working on a range of problems
in realizing the vision of connected and autonomus vehicles. GPS based
location is at the heart of autonmous navigation. We are looking at new
techniques that allow vehicles to learn relative locations of other
vehicles in the vicinity when GPS accuracies are low, such as in the downtown areas.
We are exploring new scalable techniques to communicate between vehicles and
from vehicles to the infrastrcture so that we are ready to embrace the new
generation of communication-capable smart-vehicles.
Miniaturized sensor devices are going to increasingly permeate the world
around us. Just in the last few years we have seen a rapid increase in the
number of sensing modalities avaialble in our smartphones.
Some are power hungry such as cameras, and some are inaccurate such as
accelerometers. Many capabilities such as RFID scanning, RADAR and LIDAR and
either large in physical dimensions or are expensive, but efforts are underway
to miniaturize and integrate them into smartdevices. How can we efficiently
collect massive amounts of sensor data over wireless using such existing as
well as emerging capabilities?
Through this big data, how can we make sense of the physical world around us
using learning and deep data analysis tools to make more informed decisions
for a smarter and healthier life?
We expect these technologies to transform the way we perceive living in a city.
Ensuring Predictable Contact Opportunity for Scalable Vehicular Internet Access On the Go, TON 2014
Scalable and Green Wireless Communication:
How can we best harness renewable energy sources to run our wireless network
infrastructure? How can we increase the capacity of uplink communication in
managed enterprise wireless local area networks (WLANs) and cellular networks?
How can I checkout from a grocery store without having to scan individual
items or to take out items from my cart? We are exploring clean-slate redesign of
communication protocols with emphasis on scaling and energy efficiency.
Availability of software-defined-radio (SDR) platforms has made it possible to
exploit Physical layer capabilities in MAC and higher layers of the network protocol
stack. We are investigating fundamental paradigm shifts in medium-acesss-control
protocol design that leverage such capabilities.
My research focuses on developing algorithmic solutions to foundational problems in wireless networking.
My recent contributions have been focused along the following avenues
(click here for a detailed research statement):
Research Pages on Active Grants