1. Department of Electrical Engineering
National Tsing Hua University
Research Topics of Prof. Yeong-Luh Ueng （翁詠祿）

2. Training in Our Lab Communication Systems Error Correcting Coding
System Algorithms
System Architectures
Co-design of algorithm and IC implementation
is highly desired for the development of
advanced SoC (System on Chip) in the areas
of industry or academic research.
IC Architectures
IC Circuit Design

4. Research Topics

5. Research Focus (MIMO-OFDM)
MIMO, MIMO-OFDM, LDPC codes, Turbo codes

6. Topic 1 Communication Systems (Baseband Part)
Design good algorithms used in synchronization, channel estimation and demodulation which are suitable for IC implementation for modern MIMO, OFDM and MIMO-OFDM based communication systems.
Space-time coding for MIMO-based communication systems.

7. Communication Systems vs Circuit Architecture

8. MIMO Systems SISO SISO 1 1 MIMO 2 MIMO 2 2 2 ：1Tx Rx Tx Rx
SISO
SISO 1 1 ：1
Space-Time Coding : Increase Diversity Tx R Rx Tx Rx
MIMO 2
MIMO 2 ： 2 2
Spatial Multiplexing: Increase Rate

9. MIMO Channels
(Rich-Scattering Channels)

10. Topic 2 Communication Systems (RF Part)
Study the effect of circuit impairment on the performance of wireless communication systems.
Compensate the effect of circuit impairment on the performance of communication systems by using digital signal processing algorithm.
An important topic since some RF IC specifications are based on this study.

11. Communication Receiver with RF Processing

12. Topic 3 Error-Correction Codes (Code Design & Application)
Design good error correction codes (ECC) with the constraint imposed by the real applications and IC implementation.
Apply some popular codes such as Turbo codes, LDPC codes on real applications such as 4G, DVD, optical communication and broadcasting with necessary modifications.

13. Topic 4 Error-Correction Codes (Codec IC Design)
Develop the state-of-art codec (coder and decoder) for some standards such as 3G, WiMAX and DVB.
LDPC code codec
Turbo code codec
Product code codec

15. Turbo encoder / decoder

16. Circuit Architecture of LDPC Decoder
MEMORY
MEMORY
Bit to Check
Check to Bit
MEMORY
MEMORY

17. Topic 5 Communication IC
Develop key signal processing engines in MIMO, OFDM and MIMO-OFDM based communication systems.
Develop key signal processing engines in communication standards such as Bluetooth EDR, UWB, WiMAX, and DVB.

18. WiMAX (802.16) Standard

19. DVB (Digital Video Boradcasting)

20. Welcome to Join with Us
If you are interested in our lab. Please contact Y.L. Ueng (翁詠祿)
(03)
Face-to-Face : 資電館307
For more information, please see the web site: