SDN-based WLAN designs
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Multi-Input Multi-Output (MIMO) technology is emerging as the default
choice for wireless networks. The wireless industry is continuously
pushing toward increasing the number of antennas per device.
Simultaneously, there is a proliferation of wireless devices with
diverse form factors. These range from large devices, like desktops
and laptops, to small devices, like temperature or light sensors, and
a whole range of devices in between, like smartphones and tablets. The
physical size of these devices intrinsically limits the maximum number
of antennas that they can support. The combination of these two
conflict trends - a growth in the maximum number of antennas per
device, and an increase in device diversity - means that future
wireless networks will be populated by heterogeneous APs and clients
supporting different MIMO capabilities. Our research goal is to
design multiuser MIMO systems that enable efficient medium sharing
among users with heterogeneous hardware capabilities and dynamic
channel conditions.
RF-based sensing
With the growing popularity of
IoT applications, human increasingly need a
more friendly and flexible interface to
interact with "things" and be understand by
"things". Conventional designs heavily rely on
camera or wearable/tangible devices to sense
human behaviors. Those approaches, however,
have a key concern about privacy and might not
be feasible all the time. RF-based sensing,
hence, gains lots of attention nowadays. By
understanding the tiny variation of RF
signals, it is possible to sense the small
changes in environments. This technique
creates several interesting IoT applications
that help develop human augmentation. For
example, human can perform gesture to remotely
control different machines in home without
equipping any physical devices. Or, home care
can be realized without introducing the
intrusion into the privacy of individuals. We
hope to leverage those rich RF signals to look
for new IoT applications.
Wireless multimedia systems
Statistics have shown that 50% of US
Internet traffic is video streamed from
Netflix and YouTube. How to efficiently
stream a large amount of video traffic
while providing quality of service is
still one of the most challenging network
problems. We are developing mobile video
applications and new architectures to
adapt to dynamic network conditions and
improve video experience on wireless
mobile devices. On the other hand, social
networks, such as Facebook and Twitter, is
a new form of multimedia networks
connecting people on the Internet. We are
also interested in exploiting networking
concepts and skills to understand social
behaviors and study how to distribute
influential information over social
networks.
Research Grant
- Remote Home Healthcare using WiFi Signals
MOST(優秀年輕研究學者計畫) 106-2628-E-009-004-MY3, PI (Aug 17 – Jul 20)
- Sub-meter Localization in Smart Factory
Delta-NCTU Cooperation Project, PI (May 17 – Apr 18)
- On Enabling Flexible Uplink Network MIMO Clustering
MOST(優秀年輕研究學者計畫) 104-2628-E-001-004-MY2, PI (Aug 15 – Jul 17)
- Performance Enhancement for Wireless Multi-Party Conference Call
AWIND Cooperation Project, PI (Jun 15 – May 16)
- Non-Orthogonal Medium Access for Full-Duplex Communications
Industrial Technology Research Institute Cooperation Project, PI (May 15 – Mar 16)
- Cross-layer Network Designs of 5G Ultra Dense Small-Cell Networks
Academia Sinica Thematic Project, AS-104-TP-A05, PI (Jan 15 – Dec 17)
- SDN-enabled Cloud-based Wireless/Broadband Network Technologies & Services
MOST University-Industry Collaboration Projects, MOST 103-2622-E-009-012, Co-PI (Aug 14 – Jal 16)
- Next-Generation Collaborative Vehicle Safety System
Intel-NTU Connected Context Computing Center, Co-PI (Jan 14 – Dec 15)
- Access Control and Rate Adaptation for Heterogeneous Full-Duplex Wireless Networks
MOST 103-2221-E-001-017-MY2, PI (Aug 14 – Jul 16)
- Next Generation Random Access Multi-User MIMO Networks
NSC (優秀年輕研究學者計畫) 102-2221-E-001-012-MY2, PI (Aug 13 – Jul 15)
- Information Delivery Middleware for Disaster Management over Heterogeneous Interwoven Communication Networks
NCP 102-2219-E-002-022-, Co-PI (May 13 – Apr 14)
- Enhance QoS of FreeRDP-based Cloud Virtual Desktop
Institute for Information Industry Cooperation Project, PI (Mar 13 – Nov 13)
- Resolution Adaptation based on Network Quality and Region Importance for Desktop Virtualization
Institute for Information Industry Cooperation Project, PI (Mar 12 – Nov 12)
- Content Diffusion over Mobile Social Networks
NSC 100-2221-E-001-005-MY2, PI (Aug 11 – Jul 13)
- OpenISDM – Sub-Project 6: Open Information Gateway
Academia Sinica Thematic Project, AS-101-TP2-A01, Co-PI (Jan 12 – Dec 14)
- Rate-Adaptive Video Multicast for Heterogeneous Clients over Wireless Networks
NSC 99-2218-E-001-005-, PI (Mar 10 – Jul 11)
- Load Balancing for Large Scale Upload Transmission and Processing
Institute for Information Industry Cooperation Project, Co-PI (Feb 10 – Dec 10)
