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First White Space Network in the World
White Space Network Setup
Microphone testing in Anechoic Chamber
Data packets over UHF
Subcarrier Suppression demo
Oct. 16, 2009
WS Antenna on Bldg 42
Shuttle Deployment
WS Antenna on MS Shuttle
Microsoft Research
Deployment History (1) February 2, 2010. Demonstrated shuttle network to a delegation from Agência
Nacional de Telecomunicações Brazil (ANATEL) Brazil including Max Martinhão, the General Manager for Radio Frequency Spectrum in Brazil
January 14, 2010. Demonstrated network to a delegation from Fisher Communications, Inc. (KOMO TV-ABC & KUNP TV—Univision) including Senior Vice President of Operation Robert I. Dunlop
January 11, 2010. Demonstrated network to a delegation from the State Administration of Radio, Film, and Television (SARFT) China including Deputy Director General of Science and Technology China, Mr. Wang Lian
Octber 22, 2009. Demonstrated network to a delegation from the Telecom Regulatory Authority of India (TRAI) including Chairperson Dr. J. S. Sarma.
October 16, 2009. Reached a significant and historic milestone! Successfully deployed WSN between buildings on Microsoft's Redmond Campus. To the best of our knowledge this is the first urban WSN.
Technologies tested include:
o An opportunistic data network in the UHF and VHF bands o Channel occupancy database service with real-time Longley-Rice RF propagation
modeling over NASA Terrain Data o Coexistence with wireless microphones o Handling mobile clients o Varying channel widths to accommodate varying needs of the application
Microsoft Research
Deployment History (2) July 15, 2009 Outdoor tests succeeded. Achieved communications with 1% BER
between white spaces devices transmitting at 100 mW and separated by more than 0.5 Km. Tests proved that enterprise wireless network coverage can be significantly enhanced with a combination of Wi-Fi & White-Fi.
July 6, 2009 Received FCC experimental license to test a deployment of a white space network.
June 30, 2009 Version 1 of our channel occupancy database came online
January 15, 2009 Demonstrated a fast channel discovery algorithm (a.k.a SIFT) and an efficient channel assignment algorithm (a.k.a. MCHAM) to achieve high throughput in a WSN
October 23, 2008 Happy birthday! the first white space network (WSN) is alive and kicking! Successfully demonstrated a network of five nodes communicating over the UHF white spaces. The network was built in our lab using the KNOWS hardware operating at 1 mW. We demonstrated (a) wireless microphone sensing, (b) Opportunistic networking, and (c) Variable channel width
January 27, 2003 P. Bahl, Draft Proposal for Comment: Etiquette Rules and Procedures for Unlicensed Bands, Proposal to the Industry and the FCC
Microsoft Research
Scientific Publications (Sample) Omid Fatemieh, Ranveer Chandra, and Carl A. Gunter, Secure Collaborative Sensing for Crowdsourcing Spectrum Data in
White Space Networks, in IEEE Symposia on New Frontiers in Dynamic Spectrum Access Networks (DySPAN '10), IEEE, April 2010
Paramvir Bahl, Ranveer Chandra, Thomas Moscibroda, Rohan Murty, and Matt Welsh, White Space Networking with Wi-Fi like Connectivity, in ACM SIGCOMM (Best Paper Award), Association for Computing Machinery, Inc., August 2009
Thomas Moscibroda, Ranveer Chandra, Yunnan Wu, Sudipta Sengupta, Paramvir Bahl, and Yuan Yuan, Load-Aware Spectrum Distribution in Wireless LANs, in IEEE International Conference on Network Protocols (ICNP), IEEE Communications Society, October 2008
Ranveer Chandra, Ratul Mahajan, Thomas Moscibroda, Ramya Raghavendra, and Paramvir Bahl, A Case for Adapting Channel Width in Wireless Networks, in ACM SIGCOMM, Association for Computing Machinery, Inc., August 2008
Yuan Yuan, Paramvir Bahl, Ranveer Chandra, Thomas Moscibroda, and Yunnan Wu, Allocating Dynamic Time-Spectrum Blocks in Cognitive Radio Networks, in Mobile Ad Hoc Networking and Computing (MobiHoc), Association for Computing Machinery, Inc., September 2007
Paramvir Bahl, Ranveer Chandra, Thomas Moscibroda, Yunnan Wu, and Yuan Yuan, Load Aware Channel-Width Assignments in Wireless LANs, no. MSR-TR-2007-79, June 2007
Srihari Narlanka, Ranveer Chandra, Paramvir Bahl, and Ian Ferrell, A Hardware Platform for Utilizing the TV Bands with a Wi-Fi Radio, in IEEE LANMAN, IEEE Communications Society, June 2007
Yuan Yuan, Paramvir Bahl, Ranveer Chandra, Philip A. Chou, Ian Ferrell, Thomas Moscibroda, Srihari Narlanka, and Yunnan Wu, KNOWS: Kognitiv Networking Over White Spaces, in IEEE Dynamic Spectrum Access Networks (DySPAN), IEEE Communications Society, April 2007
Suman Banerjee, Arunesh Mishra, Vladimir Brik, and Paramvir Bahl, Towards an Architecture for Efficient Spectrum Slicing, in ACM HotMobile 2007, Association for Computing Machinery, Inc., 27 February 2007
Vladimir Brik, Eric Rozner, Suman Banerjee, and Paramvir Bahl, DSAP: A Protocol for Coordinated Spectrum Access, in IEEE Dynamic Spectrum Access Networks (DySPAN), IEEE Communications Society, 10 November 2005
Pradeep Kyasanur, Jitendra Padhye, and Paramvir Bahl, On the Efficacy of Separating Control and Data into Different Frequency Bands, in Second International Conference On Broadband Networks (BROADNETS) 2005, IEEE Communications Society, 6 October 2005
Paramvir Bahl, Amer Hassan, and Pierre Devries, Draft Proposal for Comment: Etiquette Rules and Procedures for Unlicensed Bands, in Open White Paper, Microsoft, 27 January 2003
Microsoft Research
Keynotes on WS Networking The Fifth International Conference on Mobile Computing and Ubiquitous Networking (ICMU 2010),
Seattle, Washington, US (April 2010) - Committed
The 7th IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (EUC 2009), Vancouver, Canada, August 31, 2009
The Fifth Euro-NGI Conference on Next Generation Internet Networks, July 2, 2009
The Sixth International Conference on Wireless On-demand Network Systems and Services, Salt Lake City, Utah, February 2, 2009
Workshop on Wireless Broadband Access for Communities and Rural Developing Regions, December 11, 2008
Second IFIP International Symposium on Wireless Communications and Information Technology in Developing Countries, October 7, 2008
IEEE Secon SDR Workshop, June 2008
MSR’s Cognitive Wireless Networking Summit, Snoqualmie, Washington, USA, June 4, 2008
First International Workshop on Cognitive Dynamic Systems and Their Applications, May 27, 2008
Intel's Communications Internal Senior Leadership Conference (ICOMM 2008), April 9, 2008
The Third International Conference on Communication System Software and Middleware (COMSWARE 2008), January 8, 2008
The Ninth International Conference on Distributed Computing and Networking (ICDCN), January 6, 2008
Microsoft Research
Policy & Research Influence
• Panel on "Broadband Spectrum: A Looming Crisis?" FCC's National Broadband Plan -- Field Hearing on Mobile Broadband, San Diego, CA, Oct. 8, 2009 {talking points}
• Panel on "Innovating in Spectrum Access—Technological Advances and Other Approaches to Facilitate More Productive Spectrum Use" FCC’s National Broadband Plan -- Spectrum Workshop, Washington D.C. Sept. 17, 2009 {follow-up article}
• Panel on “Research Recommendation for Broadband Task Force,” Federal Communications Commission's National Broadband Workshop, Washington, DC (Nov. 23, 2009) {talking points}
• Panel on Reactions and Perspectives, National Science Foundation Workshop on Future Wireless Communication Networks, Arlington, VA (Nov. 2-3, 2009)
Microsoft Research
Public Demos & Policy Influence
India
ChinaBrazil
Radiocommunication Sector
Standards
Federal Communications Commission
Policy
Fisher Communications Inc.Industry Partners
Microsoft Research
Professional Leadership
Co-Founder & Steering Committee Member IEEE DySPAN (since inception in 2005)
General Chair of IEEE DySPAN 2012 (Committed)
MSR Cognitive Wireless Networking Summit 2008, June 2008 (Snoqualmie, WA)
Guest Editor, IEEE Journal on Selected Areas in Communications, Special Issue on Advances in Cognitive Radio Networking and Communications
PC Co-Chair, ACM CoRoNet 2009
Tutorial on White Space Networking, Summer School in Networking, Bangalore, India (June 2009)
General Co-Chair & PC Co-Chair of IEEE Workshop on Cognitive Wireless Communications and Networking
Program Committee Member, IEEE DySPAN 2005, 2007, 2008, 2010
Microsoft Research
Collaborations & Support
Smart antennas, interference mitigate & internationalization
Chanel occupancy database design & related
issues
White space mesh networks for rural
communities
Security & privacy in white space networks
Harmonization betweenheterogeneous white space
networks
The SORA Program
Steering Committee MSR Summit on Cognitive NetworkingSpecial Issue Editor
Co-located Workshop
Microsoft Research
Press – Sample Quotes
The project, dubbed “White Fi,” is one of the most advanced in the field, both dealing with the hardware side but also creating the networking protocols to handle the specific challenges.
Softpedia (Aug. 19, 2009)
Microsoft researchers have taken a step closer to finally turning unused analogue TV spectrum, known as "white spaces", into unlicensed spectrum that can be used to deliver new wireless broadband service
CNET.COM (Aug. 19, 2009)
The Microsoft Research team has addressed many of these issues with WhiteFi. —that early promise of "WiFi on steroids" might turn out to be surprisingly accurate, after all.
Nate Anderson, Ars technica, August 27, 2009
The actual engineering requirements to accomplish this frequency switch are non-trivial. Microsoft Research’s ”KNOWS” project has taken up the task and made some pretty remarkable advances.
Scott Merrill, Crunchgear, August 28, 2009
One of the best prospects for the future is the opening up of “white spaces,” unused parts of the spectrum. One of the most advanced research projects…..
Lucian Parfeni, Web News, August 18, 2009
Microsoft researchers have taken the next step toward turning old UHF analog TV spectrum into rural wireless broadband networks that would operate like Wi-Fi but with greater range.
Simon Juran, GigaOm, August 18, 2009-09-02
Microsoft Research