Work

Perturbation Power Selection for First-Error Delay Maximization in Enhanced SC Decoding

Year: 2026

Type: preprint

Abstract: In this paper, we analyze the effect of perturbation power in delaying the first error position, i.e., the first information bit incorrectly decoded by the successive cancellation (SC) decoding. It is conducted over the finite-length perturbation-enhanced SC (PE-SC) decoding paradigm. We show that the FEP delaying probability exhibits a non-monotonic dependence on the perturbation power \(σ_{p}^{2}\). Based on this property, an efficient perturbation power selection algorithm that maximizes the delay probability is proposed to enhance the perturbation efficiency. It results in a more efficient perturbation power selection in finite-length PE-SC decoding.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2607.15553

Authors: Liu, Zhicheng, Yao, Liuquan, Yuan, Shuai, Yang, Zhongjun, Yan, Guiying, Ma, Zhiming, Chen, Li, Hu, Zechun

Institutions: Sichuan University, Academy of Mathematics and Systems Science, Sun Yat-sen University

Topic: Error Correcting Code Techniques

Subfield: Computer Networks and Communications

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7169798754

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