ProjecToR is a novel, free-space optics based approach for building data center interconnects. It uses a digital micromirror device (DMD) and mirror assembly combination as a transmitter and a photodetector on top of the rack as a receiver. Our approach enables all pairs of racks to establish direct links, and we can reconfigure such links (i.e., connect different rack pairs) within 12 µs. To carry traffic from a source to a destination rack, transmitters and…
I’m a postdoc at Microsoft Research working with the Theory Group and the Adaptive Systems and Interaction Group. I received my PhD in EECS from UC Berkeley in 2014 and my SB from MIT in 2007. I’m interested in many things including but not limited to information theory, control, wireless communication, robotics and autonomous navigation, and crowdsourcing.
I received my PhD in Electrical Engineering and Computer Science from UC Berkeley, where my advisor was Anant Sahai. I am interested in information and control theory, wireless communications, crowdsourcing, brain-machine interfaces, EECS education and many other things.
March 10, 2016
- Active systems with uncertain parameters: an information-theoretic perspective PhD Dissertation, UC Berkeley, 2014
- Information content in the local field potential: implications for brain-machine interfaces Masters Thesis, UC Berkeley, 2009
Information and control theory
- A tiger by the tail: when multiplicative noise stymies control Jian Ding, Yuval Peres and Gireeja Ranade, IEEE International Symposium on Information Theory (ISIT) 2016
- Control with side information Gireeja Ranade and Anant Sahai IEEE Indian Control Conference 2016
- Vector control systems with unpredictable actuation Ena Hariyoshi, Gireeja Ranade and Anant Sahai Allerton 2015
- Control Capacity Gireeja Ranade and Anant Sahai IEEE International Symposium on Information Theory (ISIT) 2015
- Side-information in control and estimation Govind Ramnarayan, Gireeja Ranade and Anant Sahai IEEE International Symposium on Information Theory (ISIT) 2014
- Non-coherence in estimation and control Gireeja Ranade and Anant Sahai Allerton 2013
- Comments on unknown channels Kristen Woyach, Kate Harrison, Gireeja Ranade and Anant Sahai Information Theory Workshop (ITW) 2012
- Carry free models and beyond Se Yong Park, Gireeja Ranade and Anant Sahai IEEE International Symposium on Information Theory (ISIT) 2012
- Implicit communication in multiple access settings Gireeja Ranade and Anant Sahai IEEE International Symposium on Information Theory (ISIT) 2011
Protocol design for wireless control
- Robustness of cooperative communication schemes to channel models Vasuki Narasimha Swamy, Gireeja Ranade, and Anant Sahai IEEE International Symposium on Information Theory (ISIT) 2016
- Network coding for low-latency high-reliability wireless control Vasuki Narasimha Swamy, Paul Rigge, Matt Weiner, Gireeja Ranade, Anant Sahai, Bora Nikolic IEEE Wireless Communications and Networking Conference (WCNC) Workshop on the Tactile Internet : Enabling Technologies and Applications, 2016
- Cooperative communication for low-latency high-reliability wireless control Vasuki Narasimha Swamy, Sahaana Suri, Paul Rigge, Matt Weiner, Gireeja Ranade, Anant Sahai, Bora Nikolic IEEE International Conference on Communications (ICC) 2015
- Analysis of cooperative communication for low-latency high-reliability wireless control Vasuki Narasimha Swamy, Sahaana Suri, Paul Rigge, Matt Weiner, Gireeja Ranade, Anant Sahai, Bora Nikolic Journal paper (in preparation)
- To crowdsource or not to crowdsource? Gireeja Ranade and Lav R. Varshney 4th Human Computation Workshop, AAAI 2012
For a fun description, read our blog post on Follow the Crowd!
Programmable optical networks for datacenters
- ProjecToR: Agile Reconfigurable Datacenter Interconnect Monia Ghobadi, Ratul Mahajan, Amar Phanishayee, H. Rastegarfar, P. Blanche, M. Glick, D. Kilper, Janardhan Kulkarni, Gireeja Ranade, and Nikhil Devanur ACM SIGCOMM 2016
Neuroscience and brain-machine interfaces
- LFP beta power predicts cursor stationarity in BMI Task Gireeja Ranade, Karunesh Ganguly, and Jose Carmena Proceedings of the 4th International IEEE EMBS Conference on Neural Engineering, 2009
- Cortical representation of ipsilateral arm movements in monkey and man Karunesh Ganguly, Lavi Secundo, Gireeja Ranade, Amy Orsborn, Edward Chang, Dragan Dimitrov, Jonathan Wallis, Nicholas Barbaro, Robert Knight and Jose Carmena Journal of Neuroscience, 2009
Cardiovascular Modeling and Prediction
- Model Based Estimation of Cardiac Output and Total Peripheral Resistance Tushar A. Parlikar, Thomas Heldt, Gireeja Ranade and George Verghese Computers in Cardiology, October 2007
- Model-based Estimation of Cardiac Output and Systemic Vascular Resistance Tushar A. Parlikar, Thomas Heldt, Gireeja Ranade, and George Verghese U.S. Patent 2008/027812 A1, Nov. 20, 2008
- Why Nations Fail: Labor Productivity in the Railways, 1890-1920. Gireeja Ranade Economics 210 A Final Paper
- EECS 16A: Designing Information Devices and Systems I Co-designer and co-instructor for pilot offering of the new introductory EECS class UC Berkeley, Spring 2015
- CS 70: Discrete Math and Probability Guest lecturer, approx. 500 student lower division class UC Berkeley, Spring 2014, Fall 2014.
- EE 126: Probability and Random Processes Graduate Student Instructor UC Berkeley, Fall 2012
- EE 229A: Information Theory and Coding Guest Lecturer UC Berkeley, Fall 2014
- Govind Ramnarayan Value of future information in control over lossy networks Currently CS PhD student at MIT.
- Sahaana Suri Wireless protocol design for low-latency high-reliability control applications Finalist, CRA Outstanding Undergraduate Research Award 2015. Currently EE PhD student at Stanford.
- Ena Hariyoshi Geometric interpretations of the value of information in certain systems with varying parameters CSoI Channels Scholar 2014-2015, 2015-2016. Starting her PhD at MIT in Fall 2016.
- Leah Dickstein Effects of delay and quantization in control systems CSoI Channels Scholar 2015-2016. Currently third year at UC Berkeley.
- As a graduate student I was heavily involved with the Electrical Engineering Graduate Student Association (EEGSA) and Women in Computer Science and Engineering (WICSE) at Berkeley. I also co-founded EECSPeers, a peer-support community. Working with these organizations was one of the highlights of my graduate experience — do get involved if you can.
- If you are an undergrad in EECS at Berkeley (or anywhere else), get involved in research. Present your work at the Undergraduate Research Symposium!
- From January to June 2009, I was one of the first instructors for computer science in Accra, Ghana at the Meltwater Entreprenurial School of Technology, where I designed and taught introductory computer science classes.
- Consider teaching with the Prison University Project if you are in the Bay Area.