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ThinkMind // DEPEND 2016, The Ninth International Conference on Dependability // View article depend_2016_1_30_50014


Expurgated Codes for Detecting Jamming in Multi-level Memories

Authors:
Yaara Neumeier
Osnat Keren

Keywords: Robust codes; Multi-level Memories; Jamming attacks; Hardware security

Abstract:
Robust q-ary codes can efficiently detect jamming in multilevel memories when q is a power of two. When q is not a power of two, a binary information word has to be converted and encoded into a q-ary codeword. This conversion expurgates the code; some of the q-ary codewords are never used. Unless properly designed, expurgation can significantly degrade the efficiency of the code in terms of its error detection capability. This work presents a q-ary robust Quadratic-Sum code for arbitrary q’s and analyzes the error masking probability of the expurgated code when applied to multilevel memories. It is shown that by wisely designing the converter, this degradation can be minimized, and in some cases, the expurgated code’s efficiency can be superior to the one of the original code. This work suggests how to construct a converter to optimize code properties.

Pages: 15 to 20

Copyright: Copyright (c) IARIA, 2016

Publication date: July 24, 2016

Published in: conference

ISSN: 2308-4324

ISBN: 978-1-61208-492-3

Location: Nice, France

Dates: from July 24, 2016 to July 28, 2016

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