Ph.D., Computer Sciences, Univesity of Wisconsin
Google PhD Fellow
Email: tzhang {at} cs.wisc.edu
CV: PDF (updated: October 2015)
I'm currently at Google. I graduated with a Ph.D. in Computer Sciences at UW-Madison. My thesis is available here. I worked in the Wisconsin Wireless and NetworkinG Systems (WiNGS) Lab guided by Prof. Suman Banerjee. My research area lies in wireless networking and mobile systems. I have received a Google PhD Fellowship in Mobile Systems (2015 - 2017).
My thesis work focuses on designing wireless networks based on a dynamic spectrum access model. I have explored this concept via networking over TV whitespace spectrum (unused TV channels) for various applications, e.g., providing Internet connectivity to metro buses, offloading cellular traffic in femto-cell networks, and supporting intelligent video surveillance over wide-area. I have also explored low-cost and scalable approaches to monitoring wireless spectrum at a large scale. This research thread includes a vehicule based measurement framework and a smartphone based spectrum sensing platform.In my spare time, I enjoy many outdoor activities such as skiing, hiking, biking, kayaking, and scuba diving.
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The Design and Implementation of a Wireless Video Surveillance System Tan Zhang, Aakanksha Chowdhery, Paramvir Bahl, Kyle Jamieson, Suman Banerjee ACM MobiCom 2015 |
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[pdf] [slides] [App] [demo] |
A Wireless Spectrum Analyzer in Your Pocket Tan Zhang, Ashish Patro, Ning Leng, Suman Banerjee ACM HotMobile 2015 WiSense Android App is available here (Featured as a geek tool for power users in Google Play) Patches to enable spectral scan in Ath9k driver is available here |
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[pdf] [slides] [data] |
A Vehicle-based Measurement Framework for Enhancing Whitespace Spectrum Databases Tan Zhang, Ning Leng, Suman Banerjee ACM MobiCom 2014 (Awarded third place of best presentation) Web front-end to visualize data is available at here Participated in Spectrum Observatory Project led by Microsoft to collect measurements over 4GHz spectral band. |
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[pdf] [slides] [demo] |
Enhancing Vehicular Internet Connectivity using Whitespaces, Heterogeneity, and a Scouting Radio Tan Zhang, Sayandeep Sen, Suman Banerjee ACM MobiSys 2014 |
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[pdf] [slides] |
Inaccurate Spectrum Databases? Public Transit to its Rescue! Tan Zhang, Suman Banerjee ACM HotNets 2013 |
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Scout: An Asymmetric Vehicular Network Design over TV Whitespaces Tan Zhang, Sayandeep Sen, Suman Banerjee ACM HotMobile 2013 |
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A Dual Technology Femto Cell Architecture for Robust Communication using Whitespaces Sayandeep Sen, Tan Zhang, Milind Buddhikot, Suman Banerjee, Dragan Samardzija, Susan Walker IEEE DySPAN, 2012 (Awarded best paper) |
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Design and Implementation of an ``Approximate'' Communication System for Wireless Media Applications Sayandeep Sen, Tan Zhang, Syed Gilani, Shreesha Srinath, Steve Schmitt, Suman Banerjee, Sateesh Addepalli IEEE/ACM Transactions on Networking |
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[pdf] [poster] |
V-Scope: An Opportunistic Wardriving Approach to Augmenting TV Whitespace Databases (poster) Tan Zhang, Suman Banerjee ACM MobiCom 2013 (Won first place in ACM student research competition) |
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[pdf] [demo] |
Video Streaming using Whitespace Spectrum for Vehicular Applications (video demo) Tan Zhang, Sayandeep Sen, Suman Banerjee ACM MobiSys 2013 |
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Method and Apparatus for Wireless Communication using A Short-range Base Station with Multiple Radio Interfaces of Different Technologies Milind M Buddhikot, Sayandeep Sen, Dragan Samardzija, Tan Zhang, Susan Walker US Patent Publication No: US20140105134 A1 |
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Sip: Speculative Insertion Policy for High Performance Caching Hongil Yoon, Tan Zhang, Mikko H Lipasti TR-1676, UW Computer Science Department, 2010 |
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Summer 2015: Google, Seattle, USA Working with Michael Buettner and Matt Welsh on improving a mobile web compression proxy for Chrome browser. |
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Winter 2014: University College London, UK Worked with Prof.Kyle Jamieson on deploying an indoor wireless video surveillance system over the unlicensed ISM band. |
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Summer 2014: Microsoft Research, Redmond, USA Worked with Victor Bahl and Aakanksha Chowdhery on building a real-time vision analytic system over TV whitespace networks. |
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Summer 2012: Bell Labs, Alcatel-Lucent, NJ, USA
Worked with Milind M. Buddhikot on deploying long-distance wireless backhauling networks over TV whitespaces. |
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Summer 2011: Bell Labs, Alcatel-Lucent, NJ, USA
Worked with Milind M. Buddhikot on developing whitespace radio prototypes and indoor whitespace femtocells for offloading cellular traffic. |