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home · events · colloquia · 2009-2010 · 
 

Colloquium - Zheng

 
9/1/2009
11:00am-12:00pm
ECOT 831

Collaborative Cognitive Radios: Putting an End to Spectrum Scarcity
University of California, Santa Barbara
Heather Zheng photo

The static nature of today's spectrum allocations makes them highly inefficient. While assigned spectrum sits unused, new prominent wireless technologies are denied from spectrum access. If not addressed, such inefficiency will soon put a stop to wireless growth and innovation.

This talk provides an overview of UCSB LINK Lab's research where we tackle the artificial spectrum scarcity using cognitive radios that dynamically access radio spectrum. Specifically, we will discuss our recent works in the following two areas:

  1. From a networking perspective, we have designed a set of robust and scalable systems and algorithms to provide efficient and reliable spectrum usage to wireless networks. Wireless devices can share spectrum fairly with peers, quickly adapt to network dynamics and reliably obtain desired spectrum.

  2. Next, from an economic perspective, we have designed a set of eBay-like dynamic spectrum auction systems, that utilize economic incentives to efficiently redistribute spectrum across existing owners and new wireless users while avoiding fear of market manipulation.

Heather Zheng is currently an associate professor in the Department of Computer Science at the University of California, Santa Barbara, which she joined in Fall 2005. Her research area includes wireless networking and communications, and multimedia computing, with a current focus on Cognitive Radios and dynamic spectrum networks. Dr. Zheng's research on Cognitive Radios was selected as one of the 10 Emerging Technologies of 2006 by MIT Technology Review Magazine (see "Cognitive Radio"), and the Best Student Paper in IEEE DySPAN 2007. Dr. Zheng was named as the MIT Technology Review's "Top 35 Innovators Under the Age of 35" in 2005.

Hosted by Douglas Sicker.


The Department holds colloquia throughout the Fall and Spring semesters. These colloquia, open to the public, are typically held on Thursday afternoons, but sometimes occur at other times as well. If you would like to receive email notification of upcoming colloquia, subscribe to our Colloquia Mailing List. If you would like to schedule a colloquium, see Colloquium Scheduling.

Sign language interpreters are available upon request. Please contact Stephanie Morris at least five days prior to the colloquium.

 
See also:
Department of Computer Science
College of Engineering and Applied Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
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