Computer Science University of california, Santa barbara
Heather Zheng
I am an Associate Professor at the Department of Computer Science. I received my PhD in Electrical and Computer Engineering from University of Maryland, College Park in 1999. I joined UCSB after spending 6 years in industry labs (Bell-Labs, NJ and Microsoft Research Asia). At UCSB, I lead the LINK Lab, part of the Next Generation Networking Group.
I was selected as one of the
MIT Technology Review's TR
35 (2005) for my work on Cognitive Radios; my work was
featured by MIT Technology Review as one of the
10 Emerging Technologies (2006); and I am a fellow of the
World Technology Network. More
details can be found in my Curriculum
Vitae.
I am looking for 1-2 talented and self-motivated graduate
students on wireless networking or social networks. Prospective students should first read the
Admission FAQ
page, and then email me your resume, 1--2 representative publications
(if any) with a subject line of "UCSB Applicant.''
My Research
My general research areas include wireless networking and systems,
mobile computing and multimedia computing. I am also interested in
security, distributed systems and social networks. My current research is on cognitive radios
&
networking, dynamic spectrum sharing and auctions, with a particular
focus on improving network reliability and robustness. Detailed
information can be found from the Research
Overview
as well as the List of Publications. Please also check out LINK Lab's webpage for most
recent project/publication information.
I recently started to work on models of social
networks, collaborating with Prof. Ben Y.
Zhao's group, and our first result appeared in WWW 2010. I have also started to look
at smartphone based wireless system design. Our first paper on outdoor AP location via
smartphones appeared
in MobiCom 2011.
Another ongoing project is to build high-speed wireless connections for data centers.
Our first paper (3D Beamforming
for Wireless Data Centers) appeared
in HotNets 2011. It was also covered by MIT
Technology Review, ACM News, ExtremeTech,
and most recently New
York Times.
Recent
Publications:
- Wireless Data Centers
- 3D Beamforming for Wireless Data Centers,
HotNets'11.
- Smartphone based Mobile Systems
- I am the Antenna: Accurate Outdoor AP Location
using Smartphones, MobiCom'11 [PDF].
- Social Networks
- Measurement-calibrated Graph Models for Social Network Experiments, WWW
2010 [PDF]
- Orion: Shortest Path Estimation for Large Social
Graphs, WOSN 2010 [PDF]
- Spectrum Usability Study
- On the Feasibility of Effective Opportunistic
Spectrum
Access, IMC 2010, [PDF]
- Dynamic Spectrum Sharing (and USRP based Frequency-Agile Radio Testbed)
- Papyrus: A Software Platform for Distributed
Dynamic Spectrum Sharing Using SDRs, CCR, Jan. 2011 [PDF]
- The Spaces Between Us: Setting and Maintaining
Boundaries in Wireless Spectrum Access, MobiCom'10 [PDF]
- Supporting Demanding Wireless Applications with
Frequency-agile Radios, NSDI 2010 [PDF]
- DEMO - Jello: Dynamic Spectrum Sharing in Digital
Homes, Infocom 2010 [PDF][Photo]
- The Impact of Frequency-Agility on Dynamic Spectrum Sharing, DySPAN 2010 [PDF]
- Dynamic Spectrum
Auctions
- To Preempt or Not: Tackling Bid and Time-based
Cheating in Online Spectrum Auctions, Infocom2011 [PDF]
- Breaking Bidder Collusion in Large-Scale Spectrum
Auctions, Mobihoc 2010 [PDF]
- TRUST:
A General Framework for Truthful Double Spectrum Auctions, Infocom
2009 [ PDF
]
- eBay In the
Sky: Strategy-Proof Wireless Spectrum Auctions, MobiCom 2008 [ PDF
]
Finalist for Best Paper
- A
General
Framework
for Wireless Spectrum Auctions, DySPAN 2007 [ PDF
] Best Student Paper
- SINR-based Dynamic Spectrum
Access
- Optimus: SINR-driven Spectrum Distribution via Constraint Transformation, DySPAN
2010 [PDF]
Past
Research: My research spreads across multiple layers. At
Microsoft Research Asia, I initiated and led the Nautilus
project on Open Spectrum
Systems; At Wireless Research Lab, Bell-Labs, I worked on Radio
Resource
Allocation for Broadband
Wireless Networks including MIMO/BLAST, Network Scheduling and TCP,
and Base
Station Router. My
Ph.D. thesis
research at Univ. of Maryland, College Park was on
multimedia communications, a cross layer design framework to provide
resource-efficient multimedia delivery over noisy networks. Here are
the links to some of my collection
of past
projects.
Teaching
Spring 2011:CS64 - Computer
Organization
Fall 2010: CS290F -
Smartphone-centric Wireless
Systems
Spring 2010: CS182/ECE160 - Multimedia Computing: a undergradate course on
multimedia computing and networking.
Professional Activities
TPC co-Chair: DySPAN 2011
Workshop co-Chair: SDR'09
Recent TPC Activities: Sigcomm'11, Infocom'11, MobiCom'10, MobiHoc'10, WoWMoM'10, DySPAN'10,
Infocom'10, SECON'10, MobiCom'09, Infocom'09, SECON'09
Journals: Trans. on Mobile Computing (Assoc. Editor, 2008-present), Trans. on Wireless
Communication (Editor, 2008-09), Physical Communication (Editorial Board &
Guest Editor)