Research

I enjoy building and analyzing systems, and focus on wireless networks and energy-efficient networks. I am also interested in various economic and social aspects of computer networking in developing regions.

• WiLDNet: Long distance wireless networks
• Energy efficient networking
• Hardware Speech Recognition
• Connectivity solutions for developing regions

Selected Publications

Energy Efficient Networks

• Skilled in the Art of Being Idle: Reducing Energy Waste in Networked Systems. Sergiu Nedevschi, Jaideep Chandrashenkar, Bruce Nordman, Sylvia Ratnasamy and Nina Taft. ACM/USENIX NSDI, 2009.
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• Hot Data Centers vs. Cool Peers. Sergiu Nedevschi, Sylvia Ratnasamy and Jitu Padhye. USENIX Workshop on Power Aware Computing and Systems (HOTPOWER), 2008.
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• Can Software Routers Scale? Katerina Argyraki, Salman Abdul Baset, Byung-Gon Chun, Kevin Fall, Gianluca Iannaccone, Allan Knies, Eddie Kohler, Maziar Manesh, Sergiu Nedevschi, Sylvia Ratnasamy. ACM SIGCOMM Workshop on Programmable Routers for Extensible Services Tomorrow (PRESTO), 2008.
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• Reducing Network Energy Consumption via Rate-Adaptation and Sleeping. Sergiu Nedevschi, Lucian Popa, Gianluca Iannaccone, Sylvia Ratnasasamy, David Wetherall. ACM/USENIX NSDI, 2008.
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Wireless Networks

• Maximizing Performance in Long Distance Wireless Networks for Developing Regions. Sergiu Nedevschi, Ph.D. Dissertation, Fall 2008.
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• An Adaptive, High Performance MAC for Long-Distance Multihop Wireless Networks. Sergiu Nedevschi, Rabin Patra, Sonesh Surana, Sylvia Ratnasamy, Lashminarayanan Subramanian, Eric Brewer. ACM MOBICOM, 2008.
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• A Radio Multiplexing Architecture for High Throughput Point to Multipoint Wireless Networks. Ramakrishna Gummadi, Rabin Patra, Sergiu Nedevschi, Sonesh Surana, Eric Brewer. ACM MOBICOM Workshop on Wireless Networks and Systems for Developing Regions (WiNS-DR), 2008.
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• Optimal Scheduling and Power Control for TDMA based Point to Multipoint Wireless Networks. Rabin Patra, Sonesh Surana, Sergiu Nedevschi, Eric Brewer. ACM SIGCOMM Workshop on Networked Systems for Developing Regions (NSDR), 2008.
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• Beyond Pilots: Keeping Rural Wireless Netorks Alive Sonesh Surana, Rabin Patra, Sergiu Nedevschi, Manuel Ramos, Lakshminarayanan Subramanian, Yahel Ben-David and Eric Brewer. ACM/USENIX NSDI, 2008.
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• WiLDNet: Design and Implementation of High-Performance Wifi-based Long Distance Networks Rabin Patra, Sergiu Nedevschi, Sonesh Surana, Anmol Sheth, Lakshminarayanan Subramanian and Eric Brewer. ACM/USENIX NSDI, 2007.
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• Packet Loss Characterization in WiFi-based Long Distance Networks Anmol Sheth, Sergiu Nedevschi, Rabin Patra, Sonesh Surana, Lakshminarayanan Subramanian, Eric Brewer. IEEE INFOCOM, 2007.
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• Potential of CDMA450 for Rural Network Connectivity Sergiu Nedevschi, Sonesh Surana, Bowei Du, Rabin Patra, Eric Brewer and Victor Stan. IEEE Communications Magazine, Special Issue on New Directions In Networking Technologies In Emerging Economies, Jan 2007.
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• Rethinking Wireless in the Developing World Lakshminarayanan Subramanian, Sonesh Surana, Rabin Patra, Sergiu Nedevschi, Melissa Ho, Eric Brewer and Anmol Sheth. Hot Topics in Networks (HotNets-V), November 2006.
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• DTNLite: A Reliable Data Transfer Architecture for Sensor Networking. Sergiu Nedevschi, Rabin Patra. 8th IEEE International Conference on Intelligent Engineering Systems (INES), September, 2004.
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Speech Recognition

• Hardware Speech Recognition on Low-Cost and Low-Power Devices. Sergiu Nedevschi. MS Report, UC Berkeley, December 2005.
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• Hardware Speech Recognition on Low-Cost and Low-Power Devices. Sergiu Nedevschi, Rabin Patra, and Eric Brewer. 41st Design Automation Conference, June 2005.
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ICT for Development

• ICTD State of the Union: Where Have We Reached and Where Are We Headed. Joyojeet Pal, Sergiu Nedevschi and Rabin Patra. To appear in the Proceedings of the International Conference on ICT and Development (ICTD), Doha, 2009.
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• The Case of The Occasionally Cheap Computer. Joyojeet Pal, Rabin Patra, Sergiu Nedevschi, Madelaine Plauche, and Udai Pawar. To Appear in the Information Technologies and International Development Journal (ITID), Vol 5, Issue 1, Spring 2009. Special issue for best papers in ICTD 2007.
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• Deploying a Rural Wireless Telemedicine System: Experiences in Sustainability. Sonesh Surana, Rabin Patra, Sergiu Nedevschi, Eric Brewer. IEEE Computer. Volume 41, Number 6, pp. 48-56, June 2008.
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• Usage Models of Classroom Computing in Developing Regions. Rabin Patra, Joyojeet Pal, Sergiu Nedevschi, Madelaine Plauche, and Udai Pawar. 2nd International Conference on ICT and Development, Bangalore, December 2007.
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• Bayesian Networks: A Statistical Approach for Understanding ICT Adoption. Sergiu Nedevschi, Jaspal Sandhu, Joyojeet Pal,Rodrigo Fonseca, Kentaro Toyama. 1st International Conference on ICT and Development, UC Berkeley, May 2006
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• The Case for Technology for Developing Regions. Eric Brewer, Michael Demmer, Bowei Du, Kevin Fall, Melissa Ho, Matthew Kam, Sergiu Nedevschi, Joyojeet Pal, Rabin Patra, and Sonesh Surana. IEEE Computer. Volume 38, Number 6, pp. 25-38, June 2005.
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• A Multi-disciplinary Approach to Studying Village Internet Kiosk Initiatives:The case of Akshaya. Joyojeet Pal, Sergiu Nedevschi, Rabin Patra, and Eric Brewer. Policy Options and Models for Bridging Digital Divides, March 2005.
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NB: The design of this page was inspired by that of Phil Levis.