1. 百億位元乙太網路之基頻數位訊號處理設計 10GBase-T Ethernet Baseband DSP Design-Equalizer
Ben
Advisor: Prof. An-Yeu Wu
2007/03/07

2. Outline 10GBase-T Ethernet Introduction Problem Statement Equalization
What You Will Learn
Expected Result
Background Needed

3. 10GBase-T Ethernet Introduction
Full-Duplex Transmission
Operation over 4 twisted-pair copper line
Link Distance
At least 100m on Class F (UTP Cat 7)
At least 55m Class E (UTP Cat 6)
Line Code
PAM MHz
LDPC (833,1024)
This slide shows the specification of 10GBase-T
10GBase-T supports full duplex transmission over 4 twisted pair copper line.
The link distance of 10GBase-T is at least 100m on UTP cat 7.
The link distance of 10GBase-T is at least 55m on UTP cat 6.
One line code of 10GBase-T is PAM12 with LDPC FEC code.
The 10GBase-T study group have not determined what the final specification of PAM and LDPC are.
The target BER is 10^12;
The 10GBase-T standard is not finalized, it will be approval at 2006.

4. Motivation

5. Problem Statement 10GBase-T Ethernet over UPT NEXT: Near End Crosstalk
FEXT: Far End Crosstalk

6. Goal Low Cost Design High Throughput 1010 bps
Output SNR greater than 23.8dB
BER less than 10-12
降低Cost
達到Standard要求的10^-12 BER
EQ SNR > 23.8dB

7. 10GBase-T Transceiver Architecture
上面是Tx，下面是Rx
Framer將資料轉成正確的封包格式
LDPC加上redundent bits防止錯誤
THP encoding對抗channel的ISI
在receiver
首先將echo & NEXT消除
再通過EQ
LDPC decoder
&deframer
Equalizer Design!!

8. What’s Equalization? (1/2)
Simple communication system

9. What’s Equalization? (2/2)
Without Equalization
Without Equalization

10. Why Equalization So Important?
Equalization is widely used in many communication systems
Wireless communication system
OFDM system
Wireline communication system
ADSL
Storage system
Optical & Magnetic
There must be a equalization technique
for any communication system
Equalizer design is very important
in any communication system !!!

11. What You Will Learn
Equalizer
Design

12. Expected Result Paper survey Study advanced signal processing
Algorithm domain
Architecture domain
Study advanced signal processing
Matlab simulation of equalizer design
Presentation skills

13. Background Needed
Signal and Systems
Matlab (optional)
Enthusiasm