Guest Speaker

Building Collaboration Services on Cellular Phones

Du Li
Senior Research Scientist
Nokia Research Center

Jun 4 2009 3:30PM
480 Dreese Labs
All interested parties are welcome.
Refreshments will be served prior to the talk.

Abstract:
Today cell phones have reached over 3 billion people or half of the world's population. This creates unprecedented opportunities for collaboration technologies to reach billions of people as phones naturally become collaboration tools when their owners use them for sharing information and solving problems with others. This talk overviews a newly released service called Easy Meet we developed at Nokia that allows users to run data and voice conferences on cell phones. The service is built on the Web platform so that it runs on a wide range of devices with minimal engineering costs. However, current Web platform provides limited support for resource management. We treat browsers as operating systems when optimizing the service for cell phones. Using real workload, our optimizations demonstrated 99% improvement in CPU utilization, 25-81% in net traffic, and 21% savings in energy consumption over a naive implementation that directly used standard Web APIs. Using the service for a two-person hour long conference in international roaming, the reduction in net traffic could translate into a saving of over $800.

Bio:
Du Li is a senior research scientist at Nokia Research Center, Palo Alto, California. He received PhD from UCLA in 2000 and an NSF CAREER award in 2002. Before joining Nokia, he was on faculty of Texas A&M University from 2000 to 2007. His research interests include mobile services, collaborative systems, consistency control, and software reuse. More information is available at
http://www.linkedin.com/in/lidu008

Host: Dong Xuan