Handover in Hybrid LiFi and WiFi Networks

Sanusi, Jaafaru; Idris, Sadiq; Aibinu, Abiodun Musa; Adeshina, Steve A.; Obadiah, Ali Nyangwarimam

doi:10.1109/icecco48375.2019.9043251

Cited by 15 publications

(6 citation statements)

References 41 publications

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“…The problems such as load balancing, mobility management, light path blockage, and interference management in HLWNets are mainly connected with the problem of handover management. Some recent studies have proposed the handover mechanisms considering either of the problems in HLWNets in [31][32][33][34][35][36][37][38][39]. In [31], the authors have presented a method for addressing mobility and LoS challenges faced by users in HLWNets.…”

Section: A State-of-art Methodsmentioning

confidence: 99%

“…The weighted average of the RSRP and its rate of change was calculated, and the target AP for handover was determined. The theoretical analysis of handovers in HLWNets had investigated in [33]. The relevant works in this field were discussed.…”

Section: A State-of-art Methodsmentioning

confidence: 99%

“…-The handover management methods in [31][32][33][34][35][36][37][38][39] focused on handover decisionmaking by considering either parameter like UE mobility, shadowing effects, and load management only. Such systems have failed to detect the sort of handover required during decision-making, resulting in increased computing complexity and frequent handovers.…”

Section: B Motivation and Contributionsmentioning

confidence: 99%

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MOHAN: Multi-Objective Handover for hybrid (LiFi-WiFi) Application-based Networks

Satarkar

Chowdhary

2022

Preprint

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Recently the hybrid networks using the Light Fidelity (LiFi) and Wireless Fidelity (WiFi) have received significant attention due to their advantages of higher data rate. Such networks form the Hybrid LiFi-WiFi Networks (HLWNets). As the design and implementation of HLWNets are still in their early stages, it faces several problems. The vertical/horizontal handovers process becomes a challenging task in HLWNets due to the frequent mobility of the users, short coverage range of Access Point (AP), overlapping coverage regions of different networks (WiFi and LiWi). Designing efficient handover policies for HLWNets needs to address the multiple challenges like reducing handover frequency, mitigating the shadow/light path blockage, reducing communication delay/jitter, interference management, and data loss reduction. According to current research, there is a lack of a multi-objective handover mechanism for HLWNets. To end this, we propose a novel Multi-Objective Handover for hybrid Application-based Networks, i.e., HLWNets (MOHAN). The MOHAN protocol mainly addresses the two challenges shadow effect and interference management while performing the handovers. The MOHAN protocol performs handover initialization, target AP selection, and handover execution. During the periodic handover initialization phase, the proposed technique conquers both horizontal and vertical handovers, resulting in effective interference control in the network. The handover initialization phase decides the type of handover using the user mobility and received signal power to mitigate the shadow effects and interferences. In the target AP selection phase of vertical/horizontal, QoS-aware algorithms are designed to reduce the data loss, handover frequency, and interferences. The experimental results show the efficiency of the proposed MOHAN protocol using different network conditions compared to existing methods.

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Section: A State-of-art Methodsmentioning

confidence: 99%

Section: A State-of-art Methodsmentioning

confidence: 99%

Section: B Motivation and Contributionsmentioning

confidence: 99%

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MOHAN: Multi-Objective Handover for hybrid (LiFi-WiFi) Application-based Networks

Satarkar

Chowdhary

2022

Preprint

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“…A theoretical analysis of the handover probability based on a Markov chain model is presented. [71] LIFI/WIFI An overview of the concept of hybrid handover in LiFi/WFi networks is given and related work done in this field is discussed.…”

Section: Ref Year Hybrid Network Contributionsmentioning

confidence: 99%

A Review of Hybrid VLC/RF Networks: Features, Applications, and Future Directions

Bravo Alvarez,

Montejo-Sánchez,

Rodríguez-López

et al. 2023

Sensors

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The expectation for communication systems beyond 5G/6G is to provide high reliability, high throughput, low latency, and high energy efficiency services. The integration between systems based on radio frequency (RF) and visible light communication (VLC) promises the design of hybrid systems capable of addressing and largely satisfying these requirements. Hybrid network design enables complementary cooperation without interference between the two technologies, thereby increasing the overall system data rate, improving load balancing, and reducing non-coverage areas. VLC/RF hybrid networks can offer reliable and efficient communication solutions for Internet of Things (IoT) applications such as smart lighting, location-based services, home automation, smart healthcare, and industrial IoT. Therefore, hybrid VLC/RF networks are key technologies for next-generation communication systems. In this paper, a comprehensive state-of-the-art study of hybrid VLC/RF networks is carried out, divided into four areas. First, indoor scenarios are studied considering lighting requirements, hybrid channel models, load balancing, resource allocation, and hybrid network topologies. Second, the characteristics and implementation of these hybrid networks in outdoor scenarios with adverse conditions are analyzed. Third, we address the main applications of hybrid VLC/RF networks in technological, economic, and socio-environmental domains. Finally, we outline the main challenges and future research lines of hybrid VLC/RF networks.

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“…In the proposed bidirectional LiFi-IoT system, a non-orthogonal multiple access scheme with the quality-of-service guaranteed optimal power allocation strategy was adopted to maximize the energy efficiency of both down-and up-link [12]. Therefore, the realization of all optical IoT (OIoT) using the VLC/OCC technology with multiuser bidirectional transmission [13], multiple access [14], and handover [15] features has been made possible [16].…”

Section: Introductionmentioning

confidence: 99%

A SIMO Hybrid Visible-Light Communication System for Optical IoT

Teli

Chvojka

Vítek

et al. 2022

IEEE Internet Things J.

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Handover in Hybrid LiFi and WiFi Networks

Cited by 15 publications

References 41 publications

MOHAN: Multi-Objective Handover for hybrid (LiFi-WiFi) Application-based Networks

MOHAN: Multi-Objective Handover for hybrid (LiFi-WiFi) Application-based Networks

A Review of Hybrid VLC/RF Networks: Features, Applications, and Future Directions

A SIMO Hybrid Visible-Light Communication System for Optical IoT

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