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Content Provider | IEEE Xplore Digital Library |
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Author | Cohen, R. Cassuto, Y. |
Copyright Year | 2014 |
Description | Author affiliation: Dept. of Electr. Eng., Technion - Israel Inst. of Technol., Haifa, Israel (Cohen, R.; Cassuto, Y.) |
Abstract | In this paper, we develop a new channel model, which we name the q-ary partial erasure channel (QPEC). QPEC has a q-ary input, and its output is either one symbol or a set of M possible values. This channel mimics situations when current/voltage levels in measurement channels are only partially known, due to high read rates or imperfect current/voltage sensing. Our investigation is concentrated on the performance of low-density parity-check (LDPC) codes when used over this channel, due to their low decoding complexity with iterative-decoding algorithms. We give the density evolution equations of this channel, and develop its decoding-threshold analysis. Part of the analysis shows that finding the exact decoding threshold efficiently lies upon a solution to an open problem in additive combinatorics. For this part, we give bounds and approximations. |
Starting Page | 2097 |
Ending Page | 2101 |
File Size | 624559 |
Page Count | 5 |
File Format | |
ISBN | 9781479951864 |
ISSN | 21578117 |
DOI | 10.1109/ISIT.2014.6875203 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2014-06-29 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Mathematical model Equations Iterative decoding Decoding Approximation methods |
Content Type | Text |
Resource Type | Article |
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