Memory-Assisted Quantized LDPC Decoding

We enhance coarsely quantized LDPC decoding by reusing computed check node messages from previous iterations. Typically, variable and check nodes update and replace old messages every iteration. We show that, under coarse quantization, discarding old messages entails a significant loss of mutual inf...

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Bibliographic Details
Published in:	IEEE communications letters Vol. 29; no. 5; pp. 888 - 892
Main Authors:	Mohr, Philipp, Bauch, Gerhard
Format:	Journal Article
Language:	English
Published:	New York IEEE 01.05.2025 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	5G mobile communication 5G NR Algorithms coarse quantization Complexity theory Decoding information bottleneck Iterative decoding layered schedule LDPC Memory management message passing Messages Mutual information Optimization Quantization (signal) Random variables Reliability
ISSN:	1089-7798, 1558-2558
Online Access:	Get full text
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