????:98N2502E1 - PowerPoint PPT Presentation

Title: ????:98N2502E1


1
???????????????????
????????-98??????99???

• ????????
• ???????????????????
• ????98N2502E1
• ?????????????????
• ??????
• ???????????????
• ????96-97-98-99?

2
??

• ????
• 98?????
• ????
• ??????????????
• ????????
• ????
• 98?????
• Sub-project 1
• Sub-project 2
• Sub-project 3
• ???????????
• 98???????
• 99?????
• 99???????
• ?????

3
????

• The Internet is in everyones life. Conducting
  research and development related to the Internet
  is mostly likely to have major scientific and
  social impacts on the people in the world.
• Switching Technologies
• The main research topics in sub-project 1
  include high speed switching (load balanced
  Birkhoff-von Neumann switches) and the
  constructions of optical queues.
• Wireless and Sensor Networks
• The theme of sub-project 2 is the integration
  of heterogeneous wireless networks that would
  make it possible to roam anywhere at anytime
  through any type of access networks.
• Wireless Communications
• The target of sub-project 3 is on MB-OFDM UWB
  wireless communication systems (or better known
  as the 4G wireless communication systems),
  including signal processing, coding and system
  optimization.

4
98?????-????????? (1/2)

• ????
• Switching Technologies
• ????????????????????????????????????? ?
• Wireless and Sensor Networks
• ????????????????????????????????????????????
  ???
• Wireless Communications
• ??????????????????????????????????????????
• ????
• ?????????Optical OFDM communication system???
• ????????????????????????????????
• ????Evry TELECOM SudParis?????????????????
• ??????Davis???????????????????????????
• Quasar, Inc., San Diego, CA, USA High
  Throughput, Low Latency, Low Power, Reliable
  Communication Protocol

5
98?????-???? (2/2)

• Northwestern University, Chicago, Illinois and
  University of Michigan (USA) Sensor Network
  Synthesis
• University of New Hampshire (USA) and Delft
  University (Netherlands) Smart Sediment Grains
  and the Motion and Transport of Heterogeneous
  Sediment in Unsteady Forcing Environments
• UC Irvine??????GCRC??Eco?????????????????????
• Eco Wireless Sensor Platform (a) UC Irvine, USA
  (b) University of Zaragoza, Spain
• University of Waterloo, Canada Repacking and
  Borrowing-Based Constant-Time Resource Scheduling
  for IEEE 802.16j Multihop Relay Wireless Networks
• UC Davis, USA Data-Centric and Bio-Inspired
  Communications for Sensor Networks
• University of Southern California, Los Angeles,
  USA Opportunistic Multicasting in Cellular
  Networks and Game Theoretic Studies on Physical
  Layer Secrecy
• Communications Research Centre, Canada 60GHz
  Cognitive Radio Networks
• ??????????????????????????????????
• ????????????????????????????????????????????????
  ?????
• ????????????????Analysis and Design of Error
  Control for Network-Coded Network Transmission

6
98?????-?????????
7
98?????-????????
8
98?????-????

• ?????????????????????,?????????
• ??????????????????????
• ????????????
• ???????????,?????
• ??????,?????????????????????

9
98?????-???? (1/3)

• ?????Multi-functional Optical Packet Switch
• Multifunction All Optical Packet Switch by
  Periodic Wavelength Arrangement

5 R. Srivastava et al., Photon. Technol. Lett.
20, 1581-1583
1 Y. N. Singh et al., J. Lightw. Technol. 21,
719-726
3 C. Guillemot et al., J. Lightw. Technol. 16,
2117-2134
2 F. S. Choa et al., J. Lightw. Technol. 23,
994-1014
4 M. C. Chia et al., J. lightw. Technol. 19,
1241-1254
10
98?????-???? (2/3)

• ????? Optical OFDM Study
• Spectrally Efficient Direct-Detected Optical OFDM
  Communications

2009 ?PSCI?? 3 ? IEEE/OSA JLT 1 ? Optical
Express 2 ? IEEE PTL
11
98?????-???? (3/3)

• ?????32-Gbps Feedback Based 44 Switch Fabric IC
  for with Low Propagation Delay

• 4x4 switch with 32 Gbps
• data rate (8Gbps/ch)
• 80 reduced area
• 80 reduced power
• consumption
• 97 reduced propagation
• delay for much better
• network scalability

11
12
98?????-???? (1/3)

• Soft handoff mechanism for SIP-NEMO
• The experimental results indicate that our
  SIP-NEMO with soft handoff support can
  effectively reduce the handoff disruption time
  from those of SIP-NEMO without soft handoff and
  MIPv4-NEMO with fast handover.
• NGNAS-SIOTP test system
• based on the TTCN-3 specifications for the
  conformance testing of next generation network
  applications and systems.

13
98?????-???? (2/3)

• ??????????????

• Quality of Service
• Q-SIP (SIP with QoS extension) is proposed to
  integrate among
• heterogeneous networks.
• A primitive UMTS/WiMAX/WiFi integrated testbed is
  also
• implemented.
• A cross-layer random access mechanism based on
  channel conditions
• and a distributed peer selection schemes are
  proposed to exploit
• cooperative communications with the
  integrated wireless system.
• Mobility Management
• We design a soft handoff mechanism for SIP-NEMO
  and implement a
• test-bed for it with soft handoff support.
• SIP-NEMO with soft handoff support can
  effectively reduce the handoff disruption time
  from those of SIP-NEMO without soft handoff and
  MIPv4-NEMO with fast handover.

• Security
• We propose a SIP-based Mobile Virtual
• Private Network (MVPN).
• SIP-based MVPN can achieve better
• performance than the IETF MVPN.

• Novel Services
• We develop a mobile tour guide for moving cars.
• We design a test system NGNAS-SIOTP which is
  designed based on the Testing and Test Control
  Notation Version 3 (TTCN-3) specifications.

14
98?????-???? (3/3)

• ?????Eco Wireless Sensor Network Platform

• Enix - A lightweight OS for WSN
• Every component of Enix is configurable
• In 8051/8052 compatible architecture
• Designed for light weight platform
• Dual Mode Operation
• Wireless Reprogramming
• Cooperative Thread with Priority Based Scheduling
• Dynamic loading using ELIB
• Virtual Memory
• File system

• EcoSpire - new hardware prototype for next
  generation Eco platform
• Nordic nRF24LE1 Microcontroller with 2.4GHz RF
  Transceiver
• Multi-storage Capability 32Mbit Flash and
  Micro-SD
• Three Options for On-board Antenna
• Two On-board Accelerometers Options (HDK HAAM-372
  or ST LIS331)
• Two I/O Controlled LED, One Input Button
• One Module Expansion Interface with SPI, I2C,
  UART or 4-CH ADC Input
• Battery Voltage Input Range 4V to 12V
• EPL Programming Interface, Easy to Program and
  Debug

15
98?????-???? (1/4)

• ?????Mobile Position Technologies in Urban Areas
  Abstract

Mobile positioning problem has drawn much
attention owing to its numerous applications.
The difficulty of this problem comes from the
non-line-of-sight (NLOS) radio propagations due
to obstructions. We have proposed a mixed-norm
optimization approach to handle this situation.
Figure (a) shows the true trajectory of the MS,
whereas figure (b) shows the corresponding
estimated result by the mixed-norm approach.
16
98?????-???? (2/4)

• ?????A Linear Fractional Semidefinite
  Relaxation Approach to Maximum-Likelihood (ML)
  Detection of Higher-Order QAM OSTBC in Unknown
  Channels
• Motivation Noncoherent MIMO detection has higher
  spectral efficiency than training based methods
  in block fading channels with short channel
  coherence time.
• Contribution Noncoherent higher-order QAM OSTBC
  detection is a difficult discrete optimization
  problem without effective and computationally
  efficient methods so far.
• We propose an effective approximation method,
  linear-fractional semidefinite relaxation
  (LF-SDR) technique.
• The LF-SDR method can be efficiently implemented
  by solving a convex semidefinite program (SDP),
  and can yield near ML performance.
• Publications
• T.-H.Chang, C.-W. Hsin, W.-K. Ma and C.-Y. Chi,
  A linear fractional semidefinite relaxation
  approach to maximum-likelihood detection of
  higher-order QAM OSTBC in unknown channels,
  submitted to IEEE Trans. on Signal Processing
  (regular paper, AQ).
• C.-W. Hsin, T.-H. Chang, W.-K. Ma and C.-Y. Chi,
  A linear fractional semidefinite relaxed ML
  approach to blind detection of 16-QAM orthogonal
  space-time block dodes, IEEE ICC-2008, Beijing,
  China, May 19-23, 2008, pp. 790-794.

17
98?????-???? (3/4)

• ???????closed-loop MIMO ????????FPGA??

• ??
• ??GMD????Antenna selection?????????,?ML?1.5
  dB,?V-BLAST
• ?6 dB????
• ??? Antenna selection????50
• ??????
• ?feedback???????(4x4???
• ??,????80 bit ??7 bit)
• ???????????QR???
• ???FPGA??????????
• 50 MHz???120Mbps ??????

• ??2010 ASP-DAC university design contest winner

18
98?????-???? (4/4)

• ?????????????(Space-Time-Trellis-Coded)???????(MI
  MO)??????MISO???

• ??????STTC Coded MISO???
• ?????STTC Viterbi????????
• ????????????
• ?????????,?????????
• ?????4x1, 3x1, 2x1?4/8/16-
• state?4PSK/8PSK/16QAM STTC-
• Coded MISO??
• ?????4.18Mbps11.14Mbps
• ??????
• ??????2.45mW,??????????,??????????2.0mW
• ????????????
• ?IEEE Transaction on Circuits
• and Systems-I Regular Papers
• ???,???2010?4??
• ?

19
98?????-??

• IEEE INFOCOM 2009 regular papers
• INFOCOM is the most prestigious conference in the
  networking area and it is often used as an
  indicator to rank the research activity in a
  university or a research institute in the
  networking area.
• In 2009, a total of 282 regular papers were
  accepted among 1,453 submissions, which
  represents an acceptance rate of approximately
  20. There are only 7 regular papers from Taiwan
  this year and 4 of them are from our team.
• SCI??

20
98?????-????????

• ??
• P. K. Sahoo and J. P. Sheu, Performance
  Evaluation of Contention-based MAC in Wireless
  Sensor Networks, Y. Xiao, H. Chen, and F. H. Li
  (Eds) Handbook on Sensor Networks, to be
  published by World Scientific Publishing Co.,
  2009.
• C. Y. Chang and J. P. Sheu, Obstacle-Aware
  Routing Protocols for Wireless Sensor Networks,
  Y. Xiao, H. Chen, and F. H. Li (Eds) Handbook on
  Sensor Networks, to be published by World
  Scientific Publishing Co., 2009.
• ??
• M. Kao, C.H. Jen, J. Wu, C.T Chiu and S.H. Hsu
  High Speed Current Model Logic I/O Interface,
  Patent No. I275246. (Taiwan), US7443210B2 (U.S.)
• ???,?????????????(??)
• ???????,???????????????(??)
• J.-C. Chen, L.-W. Lin and Y.-W. Liu Apparatus of
  dynamically assigning external home agent for
  mobile virtual private networks and method for
  the same, US 7,486,951, Feb. 3, 2009.
• J.-C. Chen, L.-W. Lin, and Y.-W. Liu Apparatus
  of dynamically assigning external home agent for
  mobile virtual private networks and method for
  the same, US 7,477,626, Jan. 13, 2009.
• Y.-W. Hong and A. Scaglione Methods and systems
  for cooperative transmission in multi-hop ad-hoc
  networks, US Patent 7493080, issued February 17,
  2009.
• ???,???????????????QR??????????QR????????(?????)
• ???,??RS-LDPC???????????(?????)
• ??
• ????????,??????????(NT 500,000)
• ???????????,?????????(NT 200,000)

21
98???????
????
?????98.11

• ???????????????????????
• ?????INFOCOM 2009?ICCCAS 2009?PIMRC
  2009?Allerton Conference 2009

22
99?????-????

• Optical Approach (???)
• Switching
• Optical
• Theoretical study of mathematical theory for the
  construction of optical queues.
• Experimental implementation
• Upgrading experimental testbed to 40 Gb/s.
• Developing new technologies to all optical label
  swapping.
• Developing fully automatic All-Optical FIFO
  Multiplexer.
• Electrical
• Chip design and implementation of high speed
  switching fabrics,
• Design and implementation of 40Gbps serial link
  modulator
• Wide range, fast locking, 40Gbps clock data
  recovery
• Optical Interconnect driver circuits for
  high-speed switch applications,
• Research and implementation for low propagation
  delay switch design for network scalability.
• Optical Communication Systems Developing all
  optical real-time OFDM communication systems.
  (Collaboration with Subproject 3)

23
99?????-????

• Wireless Sensor Networks
• Capture stroke track using multiple tiny sensors
  
• Power saving routing protocols in wireless sensor
  networks
• Next-Generation Broadband Wireless Networks
• Cooperative Communication and Cognitive Radio
  Networks
• Vehicular Networks and Telematics Services
• 4G Heterogeneous Networks
• Smart Grid

24
99?????-????

• Establish the theoretical results on indoor
  positioning scheme
• Develop advanced MIMO techniques (including
  noncoherent detection, cooperative
  communications) for signal processing in wireless
  communications
• Devise energy saving protocols for distributed
  detection in wireless sensor networks
• Develop high performance spectrum sensing and
  detection algorithm in cognitive radio
• Design and implementation of STTC Coded MIMO
  detector
• Design of coded non-coherent MIMO systems for
  fast block fading channels
• Performance analysis and system design of UWB
  transmitted-reference communication systems
• Design and analysis of the optimal concatenation
  of outer LDPC codes with inner space-time codes
  under a low-rate feedback

25
99???????-???
????
26
99???????-????
????
27
99???????-????
????
28
99???????-????
????
29
????? (1/2)

• ??
• ????
• ???(Optical Queues)?????????????????????IEEE
  INFOCOM 2009???(???????,????????????)?????????????
  ???
• ???????????????50???????,????????????,?????????
• ????????????????????98?????????????
• ??????2009???????????????
• ????
• ??????????????????????????,????????IEEE
  Transactions on Mobile Computing??????????IEEE/ACM
  Transactions on Networking,?????impact
  factor????????5??11
• ?????????????IEEE Fellow,??????????????

30
????? (2/2)

• ????
• ????????????????????????
• ????????????????
• ???????????STTC 4x1 MISO????????,??????????STTC
  4x4 MIMO??????????closed-loop MIMO?????FPGA??????,
  ?????????????,?????????????????????????????
• ????
• ?????????????????,?????????????????
• ????????????????????????????????
• ????????????????????????MIMO-OFDM?????????????
• ????????????????????????????????,?????????????????
  ,??????????????