Shravan Rayanchu PhD Candidate, University of Wisconsin, Computer Sciences Advisor: Suman Banerjee Microsoft Research PhD Fellow |
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News
Our work on securing cloud VMs has been accepted to EuroSys 2012
WiFiNet accepted for publication at NSDI 2012
Dataset used in the IMC paper is available for download
Airshark appears in Network World, and is slashdotted
Presented FLUID at MobiCom 2011, Las Vegas, NV. Slides available here
AirTrack selected for the first prize at the ACM SRC
FLUID nominated for MobiCom 2011 best paper, fast-tracked to IEEE TMC
(Older news ..)
About Me
I am a PhD student in Computer Sciences at UW-Madison. My interests are in computer systems and networking. These days I am mostly working on improving the performance and usability of wireless networks. I work in the Wisconsin Wireless and NetworkinG Systems (WiNGS) Labs with Prof. Suman Banerjee. My research work has been supported by a Microsoft Research PhD Fellowship (2009-2011).Select Projects
Non-WiFi Interference Management (Passive Interference Estimation for WLANs (
Flexible Channelization for WLANs (
Coupling Mobile Application Analytics with Network Measurements (
Centralized Scheduling in WLANs (
Project Demos/Data/Apps
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Airshark Demo:
Using a WiFi card, we are able to detect RF devices like Bluetooth, ZigBee, analog/frequency hopping cordless phones, microwave ovens, video cameras, and Xbox controllers. Check out the video of Airshark in action!
Dataset: IMC 2011 Non-WiFi device usage dataset [link] |
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| PIE Demo: Demo shows how PIE is able to detect interference between the links in real time, and shows how PIE's input can be used to reduce the impact of interference. |
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Centaur Demo: Demo of Centaur's base case showing the benefits of centralized scheduling in presence of hidden terminals. |
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Insight data and apps: Snapshot of cellular network performance results can be found at the NetworkTest website. |
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Check out the NetworkTest iPhone and Android applications: |
Publications
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Delusional Boot: Securing Cloud Hypervisors without Massive Re-engineering Anh M. Nguyen, Himanshu Raj, Shravan Rayanchu, Stefan Saroiu, Alec Wolman ACM EuroSys 2012 |
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Catching Whales and Minnows using WiFiNet: Deconstructing Non-WiFi Interference using WiFi Hardware Shravan Rayanchu, Ashish Patro, Suman Banerjee ACM/USENIX NSDI 2012 |
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Airshark: Detecting Non-WiFi RF Devices using Commodity WiFi Hardware Shravan Rayanchu, Ashish Patro, Suman Banerjee ACM IMC 2011 Media coverage: Network World, Slashdot, CRA Highlight of the week, PC Magazine, The Register, BoingBoing, ... Dataset: IMC 2011 Non-WiFi device usage dataset [link] |
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[pdf]
[slides]
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FLUID: Improving Throughputs in Enterprise Wireless LANs through Flexible Channelization Shravan Rayanchu, Vivek Shrivastava, Suman Banerjee, Ranveer Chandra ACM MobiCom 2011 Best paper nominee. Fast-tracked to IEEE TMC |
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AirTrack: Locating Non-WiFi Interferers using Commodity WiFi Hardware (student poster) Ashish Patro, Shravan Rayanchu, Suman Banerjee ACM MobiCom 2011 First place in ACM student research competition |
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PIE in the Sky: Online Passive Interference Estimation for Enterprise WLANs Vivek Shrivastava, Shravan Rayanchu, Suman Banerjee, Dina Papagiannaki ACM/USENIX NSDI 2011 |
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Network Coding Aware Routing in Wireless Networks Sudipta Sengupta, Shravan Rayanchu, Suman Banerjee IEEE/ACM Transactions on Networking 2010 |
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NAPman: Network-Assisted Power Management for WiFi Devices Eric Rozner, Vishnu Navda, Ramachandran Ramjee, Shravan Rayanchu ACM MobiSys 2010 Media coverage: MIT Tech Review and CNN |
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[pdf]
[slides] |
CENTAUR: Realizing the Full Potential of Centralized WLANs
through a Hybrid Data Path Vivek Shrivastava, Nabeel Ahmed, Shravan Rayanchu, Suman Banerjee, Srinivasan Keshav, Dina Papagiannaki, Arunesh Mishra. ACM MobiCom 2009 Awarded best paper |
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[pdf]
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802.11n Under the Microscope Vivek Shrivastava, Shravan Rayanchu, Jongwon Yoon, Suman Banerjee. ACM IMC 2008 |
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A Measurement Study of a Commercial-grade Urban WiFi Mesh Vladimir Brik, Shravan Rayanchu, Sharad Saha, Sayandeep Sen, Vivek Shrivastava, Suman Banerjee. ACM IMC 2008 |
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Loss-Aware Network Coding for Unicast Wireless Sessions: Design, Implementation, and Performance Evaluation Shravan Rayanchu, Sayandeep Sen, Jianming Wu, Suman Banerjee, Sudipta Sengupta ACM Sigmetrics 2008 |
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Diagnosing Wireless Packet Losses in 802.11: Separating Collision from Weak Signal Shravan Rayanchu, Arunesh Mishra, Dheeraj Agrawal, Sharad Saha, Suman Banerjee IEEE Infocom 2008 |
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Supporting Continuous Mobility through Multi-rate Wireless Packetization Arunesh Mishra, Shravan Rayanchu, Dheeraj Agrawal, Suman Banerjee HotMobile 2008 |
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Deconstructing Wireless Errors : Collision or 'Bad' Channel? (student poster) Shravan Rayanchu, Arunesh Mishra, Dheeraj Agrawal, Sharad Saha, Suman Banerjee ACM MobiCom 2007 First place in ACM student research competition |
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An Analysis of Wireless Network Coding for Unicast Sessions: The Case for Coding-Aware Routing Sudipta Sengupta, Shravan Rayanchu, Suman Banerjee IEEE Infocom 2007 |
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Towards Robust Localization Using Wireless Congruity Arunesh Mishra, Shravan Rayanchu, Ashutosh Shukla, Suman Banerjee HotMobile 2007 |
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[poster] [MC2R] [UWTR] |
TRAC: An Architecture for Real-Time Dissemination of Vehicular Traffic Information Shravan Rayanchu, Sulabh Agarwal, Arunesh Mishra, Suman Banerjee, Samrat Ganguly ACM MobiCom 2006 (student poster) |
Internships
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Microsoft Research, Redmond.
Worked with Stefan Saroiu and Alec Wolman on improving the security of cloud hypervisors. Media coverage: ZDNet |
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Microsoft Research, Bangalore.
Worked with Ram Ramjee, Vishnu Navda and Venkat Padmanabhan on improving the battery consumption of smartphones. Media coverage: MIT Tech Review and CNN |
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Bell Labs, Alcatel-Lucent, NJ.
Worked with Sudipta Sengupta on improving the throughput of mesh networks using network coding. |
Wordle view of my work
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Last Modified: March, 2012 |