Xiaoheng Zhang Hong Kong Polytechnic University Hong Kong [email protected] June 7, 2010.
Qian Zhang Hong Kong University of Science and Technology 2011-12-13.
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Mobility and Spectrum Management of Wireless Networks and Mobile Communications Qian Zhang Hong Kong University of Science and Technology 2011-12-13
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Transcript of Qian Zhang Hong Kong University of Science and Technology 2011-12-13.
Mobility and Spectrum Management of Wireless Networks and Mobile
Communications
Qian ZhangHong Kong University of Science and Technology
2011-12-13
2
Wireless Revolution
1997 2010 Future
SMS
Voice
Video
Internet
Mobile TV
VariousInfo/Media New Mobile
Devices
RFID Applications
Sensor Applications
Public 3GNetworks
Public GPRSNetworks
Airport
Home
Office
IP Backbone
WLAN
Ethernet
WLAN & Bluetooth
?
? Which Network? GPRS, UMTS, WLAN, Bluetooth, Ethernet
?
? Which Device? Phone, PDA, Tablet, Laptop, Desktop, Xbox
?
? How to maintain Connectivity? ? How to get one unified experience?
?
multiple network islands
Seamless Mobility/Roaming
The Achievements Complete end-to-end mobility management
solution without changing the network infrastructure
Received MIT Technology Review world’s top young innovator award (TR100) in 2004
Received the Best Asia Pacific Young Researcher Award elected by IEEE Communication Society in 2005
Core technologies transferred to Microsoft product
International patents for related technologies
Spectrum, Spectrum, Everywhere, but . . .
Dynamic Spectrum Access and Spectrum Management is the way to
GO!
Dynamic Spectrum Access and ManagementSpectrum users
Primary (PRI) user (with license) uses spectrum when desired Secondary (SEC) user opportunistically uses remaining spectrum
Goals: maximize spectrum utilization while minimize interference
Road analogue (spectrum bands lanes, spectrum users vehicles)
Real Road
Dynamic Spectrum
Management
Spectrum Road
PRI
SEC
CRN and DSA: A Multidimensional Activity
•Regulation
•Economics(spectrum market)
•Business model (pricing)
Spectrum Policy
•Spectrum sensing (incentive)
•Spectrum coordination
•Spectrum sharing (cooperative)
•Spectrum mobility (prediction)
Core Technologies
•Programmable agile radio
•High performance platform
•Testbed evaluation
Testbed and Platform
Spectrum /channel usage
understanding and modeling
The Achievements Work on multiple aspects related dynamic spectrum
management, including spectrum usage modeling, policy/marketing, core technologies, testbed/platform, etc.
Received the Overseas Young Investigator Award from the National Natural Science Foundation of China (NSFC) in 2007
Received the Chinese Young Scientists Award by China Association for Science and Technology in 2011
Received the Best Paper Awards from various international conferences, including Globecom, ICC, ICDCS, Qshine, etc.
Core technologies transferred to Huawei Corp. and Alcatel-Lucent Corp.
International patents for related technologies
