Density Evolution Analysis of Sparse-Block IDMA

Jean-Francois Chamberland; Gianluigi Liva; Krishna Narayanan

Density Evolution Analysis of Sparse-Block IDMA

Information Theory 2025-07-21 v1 math.IT

Authors: Jean-Francois Chamberland , Gianluigi Liva , Krishna Narayanan

Abstract

Sparse block interleaver division multiple access (SB-IDMA) is a recently introduced unsourced multiple access protocol that aims to improve the performance of the grant-free two-step random access transmission protocol of the 3GPP 5G New Radio standard. We introduced a density evolution analysis of the successive interference cancellation receiver of SB-IDMA, providing a theoretical characterization of its performance.

Keywords

multiuser detection wireless communication

Cite

@article{arxiv.2507.13689,
  title  = {Density Evolution Analysis of Sparse-Block IDMA},
  author = {Jean-Francois Chamberland and Gianluigi Liva and Krishna Narayanan},
  journal= {arXiv preprint arXiv:2507.13689},
  year   = {2025}
}

Comments

Presented at the 2025 IEEE Workshop on Signal Processing and Artificial Intelligence for Wireless Communications (SPAWC)

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