Non-Cooperative Game Based Power Allocation for Energy and Spectrum Efficient Downlink NOMA HetNets

Nasser, Ahmed; Muta, Osamu; Gacanin, Haris; Elsabrouty, Maha

doi:10.1109/access.2021.3116706

Cited by 6 publications

(4 citation statements)

References 34 publications

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“…For HetNets utilizing non-orthogonal multiple access (NOMA), [95] explored the tradeoff between SE and EE concerning interference management and power allocation. The tradeoff between SE and EE is modeled as a non-convex multi-objective problem that is constrained by maximum power and QoS requirements.…”

Section: Spectrum Efficiency (Se)mentioning

confidence: 99%

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A Survey on Resource Management for 6G Heterogeneous Networks: Current Research, Future Trends, and Challenges

et al. 2023

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The sixth generation (6G) mobile communication system is expected to meet the different service needs of modern communication scenarios. Heterogeneous networks (HetNets) have received a lot of attention in recent years due to their potential as a novel structure for evolutionary networks. When compared to homogeneous networks, HetNets provide more potential for spatial spectrum reuse and higher quality of service (QoS). However, effective resource management (RM) solutions are essential to prevent interference and accomplish spectrum sharing due to mutual interference. This paper presents a comprehensive review of resource management in 6G HetNets. The study aims to give crucial background on HetNets to aid in the creation of more effective methods in this field of study. First, a detailed examination of recent work is presented in resource management aspects such as power allocation, user association, mode selection, and spectrum allocation. Second, we identify the most severe challenges associated with the current resource management methods and propose suitable solutions. Finally, several open issues and emerging areas of research are highlighted.

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Section: Spectrum Efficiency (Se)mentioning

confidence: 99%

“…A limited number of users constrains the model that has been proposed. [95] Achieve a higher EE and SE. Dinkelbach technique.…”

mentioning

confidence: 98%

A Survey on Resource Management for 6G Heterogeneous Networks: Current Research, Future Trends, and Challenges

et al. 2023

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“…Future wireless communications will enable massive connectivity for mobile and fixed devices, which will require high demand for mobile data traffic on cellular networks in terms of data throughput and network capacity [1]. In order to respond to the requirements of high-transmission rates and quality of service (QoS) for 5G systems, multitier networks improve the spectrum efficiency and capacity of the systems by adopting a heterogeneous design with small cells and a macrocell tier [2]. High-spectrum efficiency (SE) is necessary to enable smooth communication in heterogeneous networks since the bandwidth resources become constrained as the number of cells grows [3].…”

Section: Introductionmentioning

confidence: 99%

Cross-Tier Interference Mitigation for RIS-Assisted Heterogeneous Networks

Soumana Hamadou,

wa Maina,

Soidridine

2023

Technologies

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With the development of the next generation of mobile networks, new research challenges have emerged, and new technologies have been proposed to address them. On the other hand, reconfigurable intelligent surface (RIS) technology is being investigated for partially controlling wireless channels. RIS is a promising technology for improving signal quality by controlling the scattering of electromagnetic waves in a nearly passive manner. Heterogeneous networks (HetNets) are another promising technology that is designed to meet the capacity requirements of the network. RIS technology can be used to improve system performance in the context of HetNets. This study investigates the applications of reconfigurable intelligent surfaces (RISs) in heterogeneous downlink networks (HetNets). Due to the network densification, the small cell base station (SBS) interferes with the macrocell users (MUEs). In this paper, we utilise RIS to mitigate cross-tier interference in a HetNet via directional beamforming by adjusting the phase shift of the RIS. We consider RIS-assisted heterogeneous networks consisting of multiple SBS nodes and MUEs that utilise both direct paths and reflected paths. Therefore, the aim of this study is to maximise the sum rate of all MUEs by jointly optimising the transmit beamforming of the macrocell base station (MBS) and the phase shift of the RIS. An efficient RIS reflecting coefficient-based optimisation (RCO) is proposed based on a successive convex approximation approach. Simulation results are provided to show the effectiveness of the proposed scheme in terms of its sum rate in comparison with the scheme HetNet without RIS and the scheme HetNet with RIS but with random phase shifts.

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“…Accordingly, the ICI management and minimization approach would be created for next-generation cellular communication. Furthermore, all other interferences must be canceled to provide user fairness and QoS in wireless cellular networks [66,67].…”

mentioning

confidence: 99%

Interference Challenges and Management in B5G Network Design: A Comprehensive Review

et al. 2022

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Beyond Fifth Generation (B5G) networks are expected to be the most efficient cellular wireless networks with greater capacity, lower latency, and higher speed than the current networks. Key enabling technologies, such as millimeter-wave (mm-wave), beamforming, Massive Multiple-Input Multiple-Output (M-MIMO), Device-to-Device (D2D), Relay Node (RN), and Heterogeneous Networks (HetNets) are essential to enable the new network to keep growing. In the forthcoming wireless networks with massive random deployment, frequency re-use strategies and multiple low power nodes, severe interference issues will impact the system. Consequently, interference management represents the main challenge for future wireless networks, commonly referred to as B5G. This paper provides an overview of the interference issues relating to the B5G networks from the perspective of HetNets, D2D, Ultra-Dense Networks (UDNs), and Unmanned Aerial Vehicles (UAVs). Furthermore, the existing interference mitigation techniques are discussed by reviewing the latest relevant studies with a focus on their methods, advantages, limitations, and future directions. Moreover, the open issues and future directions to reduce the effects of interference are also presented. The findings of this work can act as a guide to better understand the current and developing methodologies to mitigate the interference issues in B5G networks.

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Non-Cooperative Game Based Power Allocation for Energy and Spectrum Efficient Downlink NOMA HetNets

Cited by 6 publications

References 34 publications

A Survey on Resource Management for 6G Heterogeneous Networks: Current Research, Future Trends, and Challenges

A Survey on Resource Management for 6G Heterogeneous Networks: Current Research, Future Trends, and Challenges

Cross-Tier Interference Mitigation for RIS-Assisted Heterogeneous Networks

Interference Challenges and Management in B5G Network Design: A Comprehensive Review

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