A new detection method for noisy channels with time-varying offset

Kees A. Schouhamer Immink; Jos H. Weber

doi:10.1109/TIT.2022.3140613

A new detection method for noisy channels with time-varying offset

Kees A. Schouhamer Immink, Jos H. Weber

Discrete Mathematics and Optimization

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Abstract

We consider noisy communications and storage systems that are hampered by varying offset of unknown magnitude such as low-frequency signals of unknown amplitude added to the sent signal. We study and analyze a new detection method whose error performance is independent of both unknown base offset and offset's slew rate. The new method requires, for a codeword length n ≥ 12, less than 1.5 dB more noise margin than Euclidean distance detection. The relationship with constrained codes based on mass-centered codewords and the new detection method is discussed.

Original language	English
Pages (from-to)	3108-3114
Number of pages	7
Journal	IEEE Transactions on Information Theory
Volume	68
Issue number	5
DOIs	https://doi.org/10.1109/TIT.2022.3140613
Publication status	Published - 2022

Keywords

channel mismatch
Codes
constrained code
Error analysis
Minimization
Noise measurement
Nonvolatile memory
Pearson code
Pearson distance
Redundancy
Signal to noise ratio
slew rate
varying offset

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AB - We consider noisy communications and storage systems that are hampered by varying offset of unknown magnitude such as low-frequency signals of unknown amplitude added to the sent signal. We study and analyze a new detection method whose error performance is independent of both unknown base offset and offset's slew rate. The new method requires, for a codeword length n ≥ 12, less than 1.5 dB more noise margin than Euclidean distance detection. The relationship with constrained codes based on mass-centered codewords and the new detection method is discussed.

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KW - Codes

KW - constrained code

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KW - Minimization

KW - Noise measurement

KW - Nonvolatile memory

KW - Pearson code

KW - Pearson distance

KW - Redundancy

KW - Signal to noise ratio

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JF - IEEE Transactions on Information Theory

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A new detection method for noisy channels with time-varying offset

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