Enabling User Relaying in MCM-NOMA Under Doubly Selective Channels Using Iterative Interference Cancellation Schemes for Wireless IoT Networks

Hamza, Anis Amazigh; Dayoub, Iyad; Alouani, Ihsen; Amrouche, Abderrahmane

doi:10.1109/lsens.2022.3148330

Cited by 4 publications

(1 citation statement)

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“…Another technology is non-orthogonal multiple access (NOMA), which allows multiple users to share the same time-frequency resources and can improve spectral efficiency and coverage. The performance analysis of MCM-NOMA in vehicular systems has motivated numerous studies, including a proposal for novel precoding method to reduce peakto-average power ratios [3], rate analysis [4]- [7], resource allocation optimization [6]- [8], and bit error rate analysis [9]- [11] among others. However, to the best of our knowledge, there has been no prior research that has analyzed the performance of MCM-NOMA systems in terms of sum rate and derived a closed-form expression for the rate of information transfer.…”

Section: Introductionmentioning

confidence: 99%

Maximum Sum Rate of MCM-NOMA in Future Vehicular Sensor Networks

Allouis¹,

Hamza²,

Dayoub³

et al. 2023

Preprint

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<p>This letter addresses the challenge of determining the maximum sum rate achievable in high mobility scenarios with time and frequency selectivity in 5G V2X communications, particularly in the context of IoT/sensor networks. We derive a closed-form expression for the maximum sum rate of a multicarrier non-orthogonal multiple access (NOMA) system with 𝑛 users, and validate our theoretical results through simulations by comparing them with traditional orthogonal schemes. Our work provides valuable insights into the potential of NOMA for high-speed V2X communications, and offers a novel contribution to the existing literature by presenting a closed-form expression allowing the development of efficient and reliable 5G V2X systems.</p>

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Section: Introductionmentioning

confidence: 99%

Maximum Sum Rate of MCM-NOMA in Future Vehicular Sensor Networks

Allouis¹,

Hamza²,

Dayoub³

et al. 2023

Preprint

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Mathematical Analysis and Performance Evaluation of the Cell-Free mMIMO Networks Based on Cognitive Relays

Shalaby

Shahein

Shokair

2022

Wireless Pers Commun

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The Cell-Free mMIMO networks can provide a satisfied performance for 5G networks and beyond even there are shadowed users or indoor ones. The performance of cell-Free mMIMO networks was mathematically analyzed and simulated. This work aims to apply the cognitive relays in cell-Free mMIMO networks. The cell-Free mMIMO system, based on cognitive relays, is mathematically analyzed and simulated. The proposed work depends on two axes. Firstly, the relays can improve the performance of cell-Free mMIMO networks especially at shadowed users and cell-edge ones. Secondly, the cognitive radio can mitigate the interference in a cell-Free mMIMO network. The Cell-Free mMIMO network, based on cognitive relays, is proposed. The system is mathematically analyzed and simulated. The spectral efficiency SE and signal to interference plus noise ratio SINR is deduced and given in a closed form formula. It can be concluded that the cognitive relays can improve; SINR, SE, and Energy Efficiency EE of a cell-Free mMIMO network.

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