Sep 15, 2021 · In this article, we first introduce GF random access and discuss how it can be modified with massive multiple-input multiple-output (MIMO) to exploit a high ...
In particular, in the 5th generation (5G), grant-free (GF) or 2-step random access schemes are introduced for MTC to be more efficient by reducing signaling ...
Dec 18, 2020 · We then explain preamble designs that can improve the performance and variations based on the notion of non-orthogonal multiple access (NOMA).
Sep 12, 2024 · In this article, we first introduce grant-free random access and discuss how it can be modified with massive multiple-input multiple-output ( ...
Dec 18, 2020 · GF random access can be modified with massive multiple-input multiple-output (MIMO) to exploit a high spatial multiplexing gain and preamble ...
Oct 22, 2024 · Grant-free multiple access has garnered significant attention in recent years, particularly in the context of supporting sporadic traffic and ...
The grant-free access schemes reduce the access latency and signaling overhead at the expense of sophis- ticated signal processing at the base station.
Massive multiple input multiple output (MIMO) enabled grant-free random access (mGFRA) stands out as a promising random access (RA) solution, thus effectively ...
Jun 11, 2024 · This paper explores the application of supervised machine learning models to tackle activity detection issues in scenarios where non-orthogonal preamble design ...
Apr 12, 2023 · Simulation results corroborate our theoretical analysis and demonstrate the effectiveness of the proposed receiver for grant-free massive RA ...
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