Digital Baseband Circuit Design for High-speed Optical Communication (II)
Date Issued
2004-07-31
Date
2004-07-31
Author(s)
DOI
922220E002012
Abstract
In Wide-area Network (WAN), optical
signals may traverse long distances (up to
thousands of kilometer) and encounter
numerous optical devices such as optical
add/drop multiplexers, optical
cross-connects, etc. This causes degradation
of the signal due to optical impairments in
the long-haul link. Some of these
impairments, such as dispersion, can be
compensated optically. Dispersion
Compensating Fiber (DCF) and optical
Polarization Mode Dispersion (PMD)
compensators are examples of such optical
components [1]. Due to lack of flexibility
and also high cost of these optical solutions,
electronic compensation may be a better
choice in order to reduce the costs and
provide more flexibility.
In this project, we exploit the
electronic integrated circuit solutions by
using the Digital Adaptive Equalization and
Forward Error Correcting Code (FEC)
techniques to compensate for the
impairments of optical communication. In
the designs of digital adaptive equalizer and
FEC modules, we will seek for efficient
algorithmic-level improvement for Adaptive
Decision Feedback Equalizer (ADFE) and
FEC modules, to reduce the areas and
power dissipations. Moreover, the pipelined
or parallel architecture of ADFE and FEC
modules will be developed to obtain the
very high-speed VLSI architecture. Finally,
the circuit level optimization for power and
areas will be employed in our VLSI
architecture for ADFE and FEC modules.
Subjects
Dispersion Compensating Fiber (DCF)
Polarization Mode Dispersion (PMD)
Adaptive Equalizer Module
Forward Error
Correcting Code Module
Correcting Code Module
Adaptive
Decision Feedback Equalizer (ADFE)
Decision Feedback Equalizer (ADFE)
Publisher
臺北市：國立臺灣大學電子工程學研究所
Type
report
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