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I'm a Ph.D. student in Computer
Sciences at University
of Wisconsin-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)
Laboratory, under the guidance of Prof. Suman Banerjee. I recently received a Microsoft Research Fellowship (2009-10).
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PublicationsCENTAUR: Realizing the Full Potential of Centralized WLANs through a Hybrid Data Path Vivek Shrivastava, Nabeel Ahmed, Shravan Rayanchu, Suman Banerjee, S. Keshav, Konstantina Papagiannaki, and Arunesh Mishra To appear in the Proceedings of the International Conference on Mobile Computing and Networking (MOBICOM '09) Beijing, China. September 2009. (Best Paper Award Winner) Available as: PDF Postscript A Measurement Study of a Commercial-grade Urban WiFi Mesh Vladimir Brik, Shravan Rayanchu, Sharad Saha, Sayandeep Sen, Vivek Shrivastava, Suman Banerjee Proceedings of the ACM/USENIX Internet Measurement Conference (IMC '08) Vouliagmeni, Greece. October 2008. Available as: PDF Postscript 802.11n Under the Microscope Vivek Shrivastava, Shravan Rayanchu, Jongwon Yoon, Suman Banerjee Proceedings of the ACM/USENIX Internet Measurement Conference (IMC '08) Vouliagmeni, Greece. October 2008. Available as: PDF Loss-Aware Network Coding for Unicast Wireless Sessions: Design, Implementation, and Performance Evaluation Shravan Rayanchu, Sayandeep Sen, Jianming Wu, Suman Banerjee, Sudipta Sengupta Proceedings of the International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS '08) Annapolis, MD. June 2008. Available as: PDF Diagnosing Wireless Packet Losses in 802.11: Separating Collision from Weak Signal Shravan Rayanchu, Arunesh Mishra, Dheeraj Agrawal, Sharad Saha, Suman Banerjee Proceedings of the International Conference on Conference on Computer Communications (INFOCOM '08) Phoenix, AZ. April 2008. Available as: PDF Slides Supporting Continuous Mobility through Multi-rate Wireless Packetization Arunesh Mishra, Shravan Rayanchu, Dheeraj Agrawal, Suman Banerjee Proceedings of the Ninth Workshop on Mobile Computing Systems and Applications (HOTMOBILE '08) Napa Valley, CA. February 2008. Available as: PDF Deconstructing Wireless Errors : Collision or 'Bad' Channel? (student poster) Shravan Rayanchu, Arunesh Mishra, Dheeraj Agrawal, Sharad Saha, Suman Banerjee Proceedings of the International Conference on Mobile Computing and Networking (MOBICOM '07) Montreal, QC, Canada. September 2007. (First place in ACM Student Research Competition) Available as: PDF An Analysis of Wireless Network Coding for Unicast Sessions: The Case for Coding-Aware Routing Sudipta Sengupta, Shravan Rayanchu, Suman Banerjee Proceedings of the International Conference on Conference on Computer Communications (INFOCOM '07) Anchorage, Alaska. April 2007. Available as: PDF Towards Robust Localization Using Wireless Congruity Arunesh Mishra, Shravan Rayanchu, Ashutosh Shukla, Suman Banerjee Proceedings of the Eighth Workshop on Mobile Computing Systems and Applications (HOTMOBILE '07) Tucson, AZ. February 2007. Available as: PDF TRAC: An Architecture for Real-Time Dissemination of Vehicular Traffic Information (student poster) Shravan Rayanchu, Sulabh Agarwal, Arunesh Mishra, Suman Banerjee, Samrat Ganguly. Proceedings of the International Conference on Mobile Computing and Networking (MOBICOM '06) Los Angeles, CA. September 2006. Available as: Poster MC2R Abstract Full version: TechReport Work ExperienceSummer Intern. Microsoft Research. Bangalore, India. May - July, 2008. Worked on energy efficiency of smart phones. My work consisted of: (1) Profiling experiments -- Measurement of per-packet RX/TX power profiles (wireless interface and host) of iPAQ 6965/Samsung i780 under a variety of scenarios. Evaluation of the effect of dynamic frequency/voltage scaling and packet-compression techniques on energy consumption. (2) Network-Assisted Power Management -- We developed schemes for smart management of "sleep" durations of wireless interfaces using network support and worked on the implementation of proposed schemes on Windows SoftAP wireless driver. Summer Intern. Bell Laboratories. Murray Hill, NJ. June - August, 2006. Worked on network coding for wireless mesh networks. We developed a framework for computing the throughput of network coding on any wireless network topology and any pattern of concurrent unicast traffic sessions. We also proposed coding-aware routing which gave a performance improvement of 40% compared to opportunistic coding and 70% when compared to traditional routing. Research Assistant. Cylab, Carnegie Mellon. Pittsburgh, PA. August - December, 2005. Worked on the development of a router configuration checker for Juniper routers as a member of Project M3 (Mining, Modeling & Monitoring of Core Routers). Worked on Transparent Switching (TS) Network Architecture, to provide a unified control plane to TDM & packet networks and QoS to real time applications. Research Engineer. Ultra Wideband MAC Team, Samsung Software Bangalore, India. July 2004 - July 2005. Involved in the design & implementation of the evolving MBOA (Multi Band OFDM Alliance) Medium Access Control standard. Developed MAC Libraries, Layer Management Entity, Power Control & Testing kernel modules. Summer Intern. University of Duisburg-Essen Essen, Germany. May - July, 2003. Worked on the encapsulation of Extended Observer Pattern using Aspect-Oriented Techniques - AspectJ, JAC (Java Aspect Components), PROSE (PROgrammable Service Extenstions). MiscellaneousUndergraduate publications: B.Tech Thesis (IP Traceback - ICDCIT '04, NCC '05) ; Location Management (IWDC '03) Notes for Networking Qualifying Exam (link) Stuff about gnuradio (link) Link to wiki: (link) |