Optimal frequency reuse scheme based on cuckoo search algorithm in Li‐Fi fifth‐generation bidirectional communication

Murugaveni, S.; Mahalakshmi, K.

doi:10.1049/iet-com.2019.1154

Cited by 8 publications

(3 citation statements)

References 29 publications

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“…In order to boost data speeds, it is necessary to think about more space in the electromagnetic spectrum and to use a wide variety of novel internetworking strategies. The network’s spectral efficiency and capacity will increase as the communication needs of users on the same frequency reuse the available frequency to the greatest possible extent [ 80 ]. Hybrid networks can increase capacity and reliability when the physical layer configurations are kept the same [ 56 ].…”

Section: Methodsmentioning

confidence: 99%

A Multicriteria Decision-Making Framework for Access Point Selection in Hybrid LiFi/WiFi Networks Using Integrated AHP–VIKOR Technique

Badeel

Subramaniam

Muhammed

et al. 2023

Sensors

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Since light fidelity (LiFi) and wireless fidelity (WiFi) do not interfere with one another, a LiFi/WiFi hybrid network may provide superior performance to existing wireless options. With many users and constant changes, a network can easily become overloaded, leading to slowdowns and fluctuations in data transfer speeds. Access point assignment (APA) is required with the increase of users, which can negatively impact the system performance and quality-of-service (QoS) due to mobility and line-of-sight (LOS) blockage. Many variables could influence the APA process; these variables are considered as criteria, such as the network capacity, the degree of blockage, the speed of the connected user, etc. Unlike conditional APA methods, recent studies have considered treating these variables as “evaluation criteria”. Considering these criteria can offer better and more accurate results, eventually enhancing the APA process and QoS. However, the variety of these criteria, the conflict amongst them, their weights (importance), and priority have not been addressed so far. Moreover, treating the criteria equally might result in inaccurate outcomes. Therefore, to solve this issue, it is essential to investigate the impact of each criterion on the APA process. In this work, a multicriteria decision-making (MCDM) problem is formulated to determine a network-level selection for each user over a period of time The decision problem is modeled as a hierarchy that fragments a problem into a hierarchy of simple and small subproblems, and the selection of the AP network among various alternatives is a considered as an MCDM problem. Based on the previous works, we are not aware of any previous research attempts using MCDM methods in the LiFi research area for network selection. Therefore, this work proposes an access point assignment framework using an MCDM approach for users in a hybrid LiFi/WiFi network. The experiment was conducted based on four phases: (i) Five criteria were identified and evaluated with eleven APs (alternatives). The outcome of this phase was used to build the decision matrix and an MCDM was developed and built based on user mobility and blockages with various scenarios using all the criteria; (ii) The analytic hierarchy process (AHP) was employed to identify the criterion of the subjective weights of each criterion and to determine the degree of importance supported by experts’ judgement. Determining the weights in the AHP process considered various investigations, including the consistency ratio (CR) and the AHP consensus indicator, which is calculated using the rank-based maximum likelihood method (RGMM) and Shannon entropy techniques. The VIekriteri-Jumsko KOmpromisno Rangiranje (VIKOR) method is adopted in the selection of the optimal AP for the proper selection of whether a LiFi or WiFi AP must serve the users. The integrated AHP–VIKOR was effective for solving the APA and was the best solution based on using weighted criteria simultaneously. Moreover, the ranking outcomes of the developed integrated AHP–VIKOR approach were evaluated using sensitivity analysis. The result of this work takes the APA for hybrid LiFi networks to a new perspective.

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Section: Methodsmentioning

confidence: 99%

A Multicriteria Decision-Making Framework for Access Point Selection in Hybrid LiFi/WiFi Networks Using Integrated AHP–VIKOR Technique

Badeel

Subramaniam

Muhammed

et al. 2023

Sensors

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“…From an optimization perspective, in (Kazemi et al, 2020), based on projected subgradient method, with the aim to maximize the sum rate of mobile users and the IAB nodes, user-centric and cell-centric backhaul spectrum scheduling policies were derived for the considered two-tier multi-hop VLC-based IAB network. By integrating the RF transmission with VLC, the authors in (Murugaveni and Mahalakshmi, 2020) considered a hybrid network with RF-based IAB donor and VLC-based IAB nodes. In particular, the IAB node employed NOMA to improve spectral efficiency.…”

Section: Visible Light Communicationmentioning

confidence: 99%

A Survey on Integrated Access and Backhaul Networks

2021

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Benefiting from the usage of the high-frequency band, utilizing part of the large available bandwidth for wireless backhauling is feasible without considerable performance sacrifice. In this context, integrated access and backhaul (IAB) has been proposed by the Third Generation Partnership Project (3GPP) to reduce the expenses related to the deployment of fiber optics for 5G and beyond networks. In this paper, first, a brief introduction of IAB based on the 3GPP release is presented. Then, the existing research on IAB networks based on 3GPP specifications and possible non-3GPP research extensions are surveyed. The research on non-3GPP extensions includes the integration of IAB networks with other advanced techniques beyond the currently defined protocol stacks, such as the integration of IAB to cache-enabled, optical communication transport, and non-terrestrial networks. Finally, the challenges and opportunities related to the development and commercialization of the IAB networks are discussed.

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“…The experimental result shows the best performance in terms of energy efficiency as compared to the existing techniques. In [56], the author discusses the frequency issue in 5G networks. The author considers that now the light‐fidelity (Li‐Fi)‐based technologies play a vital role in bandwidth management and designed a scheme based on swarm intelligence algorithm.…”

Section: Related Workmentioning

confidence: 99%

Stackelberg game for heterogeneous traffics management in next‐generation cellular network

Asif

Ghani-Ur-Rehman

Zubair³

et al. 2021

IET Communications

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The innovations in the internet of things and the advent of media-intensive applications have massively increased the data burden on third-and fourth-generation (wireless cellular technology) mobile networks. The existing cellular networks face an overloading issue due to the growing rate of data traffics resultantly reducing the quality of service (QoS) in terms of delay and throughput. To overcome this issue, mobile network operators are searching for well-organized ways to support such a massive data flow. Mobile data offloading schemes through small cells such as WiFi can be implemented to provide a lucrative and effective solution. A game-based quality of service model for heterogeneous traffic to achieve the quality of service parameters is proposed. This model deals with a trade-off between mobile network operators and access points, allocating economic incentives by mobile network operators to acess points for saving the spectrum. The model is simulated in MATLAB and the preliminary analyses proved the intense impact of the model on the offloading ratio and energy consumption by achieving superior results in the aforementioned parameters.

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Optimal frequency reuse scheme based on cuckoo search algorithm in Li‐Fi fifth‐generation bidirectional communication

Cited by 8 publications

References 29 publications

A Multicriteria Decision-Making Framework for Access Point Selection in Hybrid LiFi/WiFi Networks Using Integrated AHP–VIKOR Technique

A Multicriteria Decision-Making Framework for Access Point Selection in Hybrid LiFi/WiFi Networks Using Integrated AHP–VIKOR Technique

A Survey on Integrated Access and Backhaul Networks

Stackelberg game for heterogeneous traffics management in next‐generation cellular network

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