Title: Hybrid relay protocol design based on NOMA

Authors: Sankarsan Panda; M. Karthikeyan; S. Palanikumar; Sheshang Degadwala

Addresses: Acharya Shri Mahapragya Institute of Excellence (ASMIE), Mahapragya Nagar, Asind, Bhilwara, Rajasthan, 311301, India ' VSB-Engineering College, Kovai Main Road, Karudayampalayam Post, Karur, Karudayampalayam, Tamil Nadu, 639111, India ' Department of Computer Science and Business Systems, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Avadi, Chennai, Tamil Nadu, 600062, India ' Department of Computer Engineering, Sigma University, Vadodara, Gujarat, India

Abstract: In this paper, there is a mixed access method that links many things to the narrowband internet of things (NB-IoT). It uses both non-orthogonal multiple access (NOMA) and orthogonal multiple access (OMA). Working together in a single decode-and-forward (DF) or amplify-and-forward (AF) way loses a lot of time and space. It also suggests a new Hybrid NOMA gearbox plan with relay-adaptively chosen teamwork. The steady-state probability is used to find the closed formulas for the output and the chance that the system will break down. We improve the process above even more by letting the parent node send the failed received overlay signals more than once. It is less likely that there will be an outage when there are more than one resends that can be made. The suggested adaptable joint hybrid NOMA transmission strategy is better than the pure OMA transmission mode in a number of ways.

Keywords: NOMA; system throughput; OMA transmission mode; protocol design.

DOI: 10.1504/IJESMS.2026.152046

International Journal of Engineering Systems Modelling and Simulation, 2026 Vol.17 No.2, pp.109 - 115

Received: 28 Jun 2024
Accepted: 21 Jul 2025
Published online: 04 Mar 2026 *

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