By Topic

Analyzing low-density parity-check codes on partial response channels with erasures using density evolution

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
$31 $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

2 Author(s)
Weijun Tan ; Sch. of Electr. & Comput. Eng., Univ. of Oklahoma, Norman, OK, USA ; Cruz, J.R.

We have developed a numerical technique based on density evolution to analyze low-density parity-check (LDPC) codes on partial response channels with erasures. We computed the average bit-error rates and signal-to-noise ratio thresholds and used them as criteria to evaluate the asymptotic performance of an ensemble of LDPC codes. We defined and estimated two important erasure parameters, namely, the fading depth threshold for erasure insertion and the erasure recovery capability of LDPC codes. We found that, at least asymptotically, LDPC codes are well suited for handling erasures in magnetic recording.

Published in:

Magnetics, IEEE Transactions on  (Volume:40 ,  Issue: 5 )