By Topic

Fast convergent pipelined adaptive DFE architecture using post-cursor processing filter technique

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Meng-Da Yang ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; An-Yeu Wu ; Jyh-Ting Lai

Among existing works of high-speed pipelined adaptive decision feedback equalizers (ADFE), the pipelined ADFE using relaxed look-ahead technique results in a substantial hardware saving than the parallel processing or other look-ahead approaches. For example, Shanbhag and Partiz derived three pipeline ADFE structures (PIPEADFE1, 2, 3), where PIPEADFE2 yields very good performance in terms of convergence rate and hardware cost. Nevertheless, the PIPEADFE2 employs Approximation Methods in deriving the Preprocessing Unit (PP). In this paper, a new pipelining ADFE architecture is developed. We derive a new updating ADFE scheme based on the Principle of Orthogonality. By employing the postcursor processing filter (PCF) to cancel the most significant postcursor Intersymbol interference (ISI) terms, the proposed PCFADFE architecture can significantly improve the convergence rate of the ADFE. Compared with PIPEADFE2, it has better convergence rate while at similar hardware cost. Hence, it provides an alternative approach for the design of high-speed pipelining ADFE with arbitrary speedup factor.

Published in:

IEEE Transactions on Circuits and Systems II: Express Briefs  (Volume:51 ,  Issue: 2 )