The Wireless and Networking group engages in fundamental research on all aspects of computer networking. Our group members' research interests span routing/infrastructure, wireless, mobile and phone-based computing, and new networking paradigms. We emphasize both analytical and empirical approaches, and build actual systems to validate theoretical results and refine system principles from experimental work.
- Our mood sensing work got slashdot'ed, featured in PC World and The Register, covered by Sina, and finally picked up by Jimmy Kimmel Live! (also youku version)
- Congratulations for QuickSync paper accepted to MobiCom'13
- Congratulations for BigStation accepted to SIGCOMM'13
- Congratulations to the team for getting four papers accepted to MobiSys'13 -- that is more than 12% of the whole conference -- not bad from a single group from China.
- Best Paper Award, NSDI'11 (ServerSwitch)
- Best Paper Award, CoNEXT'10 (Incast)
- Best Demo Award, SIGCOMM'10 (Sora/MPAP)
- Best Paper Award, NSDI'09 (Sora)
- Best Demo Award, NSDI'09 (Sora)
- Best Demo Award, MobiSys'08 (P&C)
- Best Demo Award, SenSys'07 (BeepBeep)
- Best Demo Award, MobiSys'07 (MobiUS)
- QuickSync, MobiCOM'13
- BigStation: Enabling Scalable Real-time Signal Processing in Large MU-MIMO Systems, SIGCOMM'13
- Optimizing Background Email Sync on Smartphones, MobiSys'13
- Auditeur: A Mobile-Cloud Service Platform for Acoustic Event Detection on Smartphones , MobiSys'13
- Building a Mood Sensor from Smartphone Usage Patterns, MobiSys'13
- ViRi: View It Right, MobiSys'13
- V-edge: Fast Self-constructive Power Modeling of Smartphones Based on Battery Voltage Dynamics, NSDI'13
- Walkie-Markie: Indoor Pathway Mapping Made Easy, NSDI'13
- Tuning ECN for Data Center Networks, CoNEXT'12
- Datacast: A Scalable and Efficient Reliable Group Data Delivery Service for Data Centers, CoNEXT'12
- MusicalHeart: A Hearty Way of Listening to Music, SenSys'12
- IODetector: A Generic Service for Indoor Outdoor Detection, SenSys'12
- Enable Flexible Spectrum Access with Spectrum Virtualization, DySPAN'12
- Frame Retransmission Considered Harmful: Improve Spectrum Efficiency Using uACKs, MobiCom'12
- ParCast: Soft Video Delivery in MIMO-OFDM WLANs, MobiCom'12
- DozyAP: Power-Efficient Wi-Fi Tethering, MobiSys'12
Recent years (2007-2011)
- Mobile collaborations: Mobius (MobiSys'07), BeepBeep (SenSys'07), Point&Connect (MobiSys'09)
- Pioneer work in DCN: DCell (SIGCOMM'08), BCube (SIGCOMM'09)
- More DCN work: MDCube (CoNEXT'09), Address Configuration (SIGCOMM'10), SecondNet (CoNEXT'10), ICTCP (CoNEXT'10 - Best Paper)
- More mobile: xShare (MobiSys'09)
- Software radio: Sora (NSDI'09 - Best Paper, CACM version)
- Wireless work on software radio: SAM (MobiCom'09), Fine-grained Channel Access (SIGCOMM'10), Retransmission ≠ Repeat (MobiCom'10)
- New networking platform: ServerSwitch (NSDI'11 - Best Paper)
- Architecture: Micro Wireless Interconnect (MobiCom'09)
Current Research Areas
Data Center Networking -- building connection fabrics for cloud computing infastructure
As the IT industry enters the era of Cloud Computing, companies are building large data centers to host online services for our daily life. In the near future, mega data centers will be built to contain millions of servers. It becomes a major research challenge how to interconnect such large number of machines. In our data center networking (DCN) project, we address this challenge with a holistic approach that includes network architecture, infrastructure consolidation, measurement, management, congestion control, traffic engineering, energy saving, and application and OS support.
On Cloud Computing research, we aim at improving online service user experiences from a networking perspective, by considering users, Internet, and data centers as a whole. Example projects that we are working on include: how to provide data centers to users as a single computing device; how to reduce user perceived end-to-end latency; how to provide security and privacy for user data, etc.
Software Radio -- empowering wireless revolution with the magic of software
We foresee that the increasingly powerful multi-core architecture and parallel data processing will fundamentally change wireless communications. Software-based cognitive wireless systems will become much more powerful, flexible, and efficient compared with existing wireless technologies. We have built a software-based high-performance software radio platform called “Sora” with general purpose CPU. It will enable a broad range of wireless research in physical layer, medium access control, and cross-layer optimization. The new programming model and various tools will greatly reduce the effort involved in implementing high-speed wide-band wireless systems, and hence facilitate innovative wireless system research in a real world.
We are also studying new architectures and developing key technologies using software radio for next generation wireless systems. Our current research focus includes high-speed MAC, MIMO, Spatial Division Multi-Access, interference alignment, and white-space cognitive systems.
Mobile Systems -- connecting people, devices, and information
Our mobile systems research focuses on exploring new paradigms and system mechanisms, and bringing mobile devices and the Cloud together to further improve a user’s mobile experience, and to enable a spectrum of new mobile applications that harness the power of the Cloud.
We are seeking exceptional researchers with experience and passion in computer networking and systems. We are particularly interested in candidates who can demonstrate high quality research taste and strong first-hand system building experience (such as OS, distributed, mobile, or embedded software), as well as potentials to achieve international visibility through research publications and product impacts. We also welcome senior candidates with an outstanding track record and professional accomplishments commensurate with their level of experience.
- Researcher (all level)
- Research Software Design Engineer
- Research intern, visiting professor, visiting researcher
- Creativity, self-motivation, and great team player.
- Demonstrated ability to generate new ideas and innovate.
- Excellent written and oral communication skill in English.
- Strong experiences and skills in C/C++/C#, TCP/IP and protocol stack, and kernel programming (Linux or Windows).
Please send your CV to firstname.lastname@example.org and indicate your interest in wireless and networking group.