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Journals / Sakarya University Journal of Computer and Information Sciences / 2026 / Volume: 8 Issue: 3

NOMA-Integrated Interleave-Division Multiple Access: A Beyond 5G Perspective

Shivani Dixit(Pranveer Singh Institute of Technology)0009-0005-7366-3635
Özkan Canay(SAKARYA UNIVERSITY)0000-0001-7539-6001
Varun Shukla(Allenhouse Institute of Technology)0000-0003-3921-1430
Manoj Kumar Misra(Allenhouse Institute of Technology)0000-0002-4334-9494
Pages
—
Publication Date
2025-09-30
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AI Summary & Key Takeaways

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

Ordered SIC-MUD NOMA-IDMA thus offers concrete performance gains and real-time feasibility for dense 6G and massive-IoT deployments.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Efficient multiple access is vital for spectrum-constrained, user-dense IoT networks.
📊
Key Findings & Data:Simulations of a five-user uplink and a thirty-two-user downlink show that the worst user attains a bit-error rate of 1.4 × 10⁻³ at 10 dB, needing ≈ 3 dB less SNR than equal-power IDMA; flat Rayleigh fading raises the curve by only ≈ 2 dB.
💡
Conclusion & Impact:Ordered SIC-MUD NOMA-IDMA thus offers concrete performance gains and real-time feasibility for dense 6G and massive-IoT deployments.
🔬Design:Research Article
📍Scope:2048 Verileri
⚙️Variables:Non-Orthogonal Multiple Access (NOMA) · Interleave-Division Multiple Access (IDMA) · Successive Interference Cancellation (SIC)

Abstract

Efficient multiple access is vital for spectrum-constrained, user-dense IoT networks. This study joins interleave-division multiple access (IDMA) with power-domain non-orthogonal multiple access (NOMA) and employs ordered successive-interference-cancellation multi-user detection (SIC-MUD). Unequal power allocation and orthogonal interleavers let all users share one spreading code while keeping chip-level complexity low. Simulations of a five-user uplink and a thirty-two-user downlink show that the worst user attains a bit-error rate of 1.4 × 10⁻³ at 10 dB, needing ≈ 3 dB less SNR than equal-power IDMA; flat Rayleigh fading raises the curve by only ≈ 2 dB. A software detector processes 2048-bit frames in ≈ 0.03 s on a standard desktop, and cycle estimates predict under 5 ms latency on a 32-100 MHz FPGA. Random interleaving gives the lowest error rate, while master-random and tree-based patterns lose < 0.3 dB yet cut memory sharply. Ordered SIC-MUD NOMA-IDMA thus offers concrete performance gains and real-time feasibility for dense 6G and massive-IoT deployments.

Özet

Efficient multiple access is vital for spectrum-constrained, user-dense IoT networks. This study joins interleave-division multiple access (IDMA) with power-domain non-orthogonal multiple access (NOMA) and employs ordered successive-interference-cancellation multi-user detection (SIC-MUD). Unequal power allocation and orthogonal interleavers let all users share one spreading code while keeping chip-level complexity low. Simulations of a five-user uplink and a thirty-two-user downlink show that the worst user attains a bit-error rate of 1.4 × 10⁻³ at 10 dB, needing ≈ 3 dB less SNR than equal-power IDMA; flat Rayleigh fading raises the curve by only ≈ 2 dB. A software detector processes 2048-bit frames in ≈ 0.03 s on a standard desktop, and cycle estimates predict under 5 ms latency on a 32-100 MHz FPGA. Random interleaving gives the lowest error rate, while master-random and tree-based patterns lose < 0.3 dB yet cut memory sharply. Ordered SIC-MUD NOMA-IDMA thus offers concrete performance gains and real-time feasibility for dense 6G and massive-IoT deployments.

🔖

Cite This Article

Dixit, S., Canay, Ö., Shukla, V., Misra, M. K. (2025). NOMA-Integrated Interleave-Division Multiple Access: A Beyond 5G Perspective. Sakarya University Journal of Computer and Information Sciences, Volume: 8 Issue: 3. https://doi.org/10.35377/saucis...1650707

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