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arxiv: 2507.13689 · v1 · pith:TVDT7ER5new · submitted 2025-07-18 · 💻 cs.IT · math.IT

Density Evolution Analysis of Sparse-Block IDMA

classification 💻 cs.IT math.IT
keywords accessanalysisdensityevolutionintroducedmultipleperformanceprotocol
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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.

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