UCSB Engineering

Elizabeth Belding


Computer Science

Elizabeth Belding


Department of Computer Science
University of California
Santa Barbara, CA 93106-5080

tel: (805) 893-3411
fax: (805) 893-8553

Personal web site

Research Description

Prof. Belding is the director of the Mobility Management and Networking (MOMENT) Lab. Currently, there are two primary research emphases of the Lab. The first of these is deployment, measurement, and modeling of wireless networks. The MOMENT group has created a wireless mesh testbed at UCSB, called the UCSB MeshNet, for the purpose of rapid prototyping of solutions, monitoring of user behavior, and studying wireless network deployment issues. Also under this project we have collected over 100GB of data on traffic and user movement, and are currently analyzing the data and developing models that represent user behavior. Our analyses of this data have discovered a number of undesirable behaviors of IEEE 802.11 and other protocols in congested networks. Part of our work is to develop new solutions that improve network performance.

The second research emphasis of the MOMENT Lab is on the development of wireless network solutions suitable to the constraints of developing and underdeveloped regions of the world, such as rural Africa. The technological revolution of the past few decades has created a digital divide that separates the affluent and developed nations from the developing and under-developed regions of the world. This digital divide has also widened the gap in economic divisions. The goal of our research is to develop inexpensive, self-configuring, self-monitoring and self-sustaining wireless network communication solutions that are robust to power outages and can support a multitude of real-time voice and video traffic. While we seek to develop solutions applicable to all developing regions, we focus our attention specifically on Africa to leverage our partnership with the Meraka Institute in South Africa. Our solutions include MAC and network layer protocols, power prediction models and conservation techniques, and lightweight scalable monitoring and adaptation systems.

A recent research emphasis of the MOMENT Lab is Quality of Service support for mobile networks. We have developed a number of solutions that support both higher quality and more concurrent multimedia and voice streams in mobile and mesh networks. We have completed a number of projects related to this area, including projects at the MAC and network layers. We have leveraged the UCSB Meshnet testbed for the characterization and analysis of our solutions.


Elizabeth M. Belding is a Professor in the Department of Computer Science at the University of California, Santa Barbara, and is currently the department’s Vice Chair. Elizabeth’s research focuses on mobile networking, specifically multimedia, monitoring, advanced service support, and solutions for developing and underdeveloped regions. She is the founder and director of the Mobility Management and Networking (MOMENT) Laboratory. Elizabeth is the author of over 100 technical papers and has served on over 60 program committees for networking conferences. Elizabeth served as the TPC Co-Chair of ACM MobiCom 2005, and ACM MobiHoc 2007. She has served on the editorial board for the IEEE Transactions on Mobile Computing journal and currently is on the editorial board of IEEE Pervasive Magazine. Elizabeth is the recipient of an NSF CAREER Award, and a 2002 MIT Technology Review 100 award, awarded to the world’s top investigators under age 35.


  • NSF Career Award, 2004
  • MIT Technology Review's TR 100, 2002

Selected Publications

See complete list of publications
  • Network Traffic Locality in a Rural African Village, Proceedings of the International Conference on Information and Communication Technologies and Development (ICTD), 2012, David L. Johnson, Elizabeth M. Belding and Gertjan van Stam
  • VillageCell: Cost Effective Cellular Connectivity in Rural Areas, Proceedings of the International Conference on Information and Communication Technologies and Development (ICTD), 2012, Abhinav Anand, Veljko Pejovic and Elizabeth M. Belding
  • The Impact of Channel Bonding on 802.11n Network Management, Proceedings of ACM CoNext, 2011, Lara Deek, Eduard Garcia-Villegas, Elizabeth M. Belding, S-J Lee and Kevin C. Almeroth
  • Traffic Characterization and Internet Usage in Rural Africa, Proceedings of WWW, 2011, Veljko Pejovic, David L. Johnson and Elizabeth M. Belding, web link
  • Energy Efficient Communication in Next Generation Rural-Area Wireless Networks, ACM SIGMOBILE Workshop on Cognitive Wireless Networking (CoRoNet), 2010, Veljko Pejovic and Elizabeth Belding, web link
  • Unwanted Link Layer Traffic in Large IEEE 802.11 Wireless Networks, IEEE Transactions on Mobile Computing Journal, 9(9), 2010, 1212-1225, Ramya Raghavendra, Elizabeth Belding, Konstantina Papagiannaki and Kevin Almeroth, web link
  • Blockage and Directivity in 60 GHz Wireless Personal Area Networks: From Cross-Layer Model to Multihop MAC Design, Journal on Selected Areas in Communications special issue on Wireless Personal Area Networks, 27(8), 2009, 1400-1413, Sumit Singh, Federico Ziliotto, Upamanyu Madhow, Elizabeth M. Belding and Mark J. Rodwell, web link
  • Green WLANs: On-Demand WLAN Infrastructures, Mobile Networks and Applications (MONET) Journal special issue on Recent Advances in IEEE 802.11 WLANs, 14(6), 2009, Amit Jardosh, Konstantina Papagiannaki, Elizabeth M. Belding, Kevin C. Almeroth, Gianluca Iannaccone and Bapi Vinnakota, web link
  • Interference-Aware Channel Assignment in Multi-Radio Wireless Mesh Networks, Proceedings of Infocom 2006, 2006, Krishna N. Ramachandran, Elizabeth M. Belding-Royer, Kevin C. Almeroth and Milind M. Buddhikot
  • Understanding Congestion in IEEE 802.11b Wireless Networks, Proceedings of the Internet Measurement Conference, 2005, Amit P. Jardosh, Krishna N. Ramachandran, Kevin C. Almeroth and Elizabeth M. Belding-Royer
  • Understanding Link-Layer Behavior in Highly Congested IEEE 802.11b Wireless, Proceedings of E-WIND, 2005, Amit P. Jardosh, Krishna N. Ramachandran, Kevin C. Almeroth and Elizabeth M. Belding-Royer