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Journals / Gazi University Journal of Science / 2026 / Volume: 39 Issue: 3

A Comprehensive Review on Multiple Access Schemes for URLLC Applications

Madhusudhanan Natarajan(SRM Institute of Science and Technology)0000-0003-3574-4299
Pallavi Joshi(SRM INSTITUTE OF SCIENCE AND TECHNOLOGY)0000-0003-3496-8397
Arul Elango(MANIPAL INSTITUTE OF TECHNOLOGY, MANIPAL)0000-0002-7517-8757
Pages
—
Publication Date
2026-09-01
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this article, various multiple access schemes have been taken into account and are reviewed at different situations to achieve Ultra-reliable low latency communication (URLLC) problem specifications in 5G and beyond systems .

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Meeting the requirements of spectral efficiency and massive connectivity are facing a major challenge in current standards of cellular network.
📊
Key Findings & Data:Orthogonal Multiple Access scheme, Non Orthogonal Multiple Access scheme and its variants have been explored reduced latency and increased connectivity.
💡
Conclusion & Impact:In this article, various multiple access schemes have been taken into account and are reviewed at different situations to achieve Ultra-reliable low latency communication (URLLC) problem specifications in 5G and beyond systems .
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Guessing random additive noise decoding (GRAND) · Non-orthogonal multiple access (NOMA) · Orthogonal multiple access (OMA)

Abstract

Meeting the requirements of spectral efficiency and massive connectivity are facing a major challenge in current standards of cellular network. To overcome this bottleneck, multiple access schemes are being chosen as a novel candidate. Orthogonal Multiple Access scheme, Non Orthogonal Multiple Access scheme and its variants have been explored reduced latency and increased connectivity. Out of these two schemes, Non orthogonal based multiple access is being suggested for 5G and beyond systems to occupy more number of subscribers. But, present mobile communication systems require high quality of service with minimal latency. Polar codes a class of channel codes, offer several advantages when combined with Non Orthogonal Multiple Access techniques. These codes have shown a potential interest to prove the capacity of wireless communication systems. The recent error correction techniques are focusing towards in proving less computational complexity with better reliability. To satisfy the above requirements, the polar coded NOMA scheme along with Guessing Random Additive Noise Decoding scheme would be proposed. In this article, various multiple access schemes have been taken into account and are reviewed at different situations to achieve Ultra-reliable low latency communication (URLLC) problem specifications in 5G and beyond systems .

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Cite This Article

Natarajan, M., Joshi, P., Elango, A., *, M. N. (2026). A Comprehensive Review on Multiple Access Schemes for URLLC Applications. Gazi University Journal of Science, Volume: 39 Issue: 3. https://doi.org/10.35378/gujs.1742672

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