A three-tier SDN architecture for DenseNets

Elgendi, Ibrahim; Munasinghe, Kumudu S.; Jamalipour, Abbas

doi:10.1109/icspcs.2015.7391793

Cited by 15 publications

(8 citation statements)

References 27 publications

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“…The system used a three-tier architecture, which consists of three layers: the application, storage and logic layer. The benefits to using a three-tier architecture is to provide security, performance and code maintenance [2]. The architecture is illustrated in Fig.…”

Section: System Architecturementioning

confidence: 99%

Blockchain Technology for Empowering Patient-Centred Healthcare: A Pilot Study

Makubalo

Scholtz

Tokosi

2020

Lecture Notes in Computer Science

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Patient-centred care allows patients to have complete autonomy in managing their health information and encourages patients to be proactive. Unfortunately, most patients do not have access to their complete health information as they are stored across the various institutions that they have visited over their lifetime. The purpose of this paper is to report on an investigation into developing a mobile system for patient-centered healthcare using blockchain technology. A design science research approach was used to design, develop and evaluate a prototype that implemented a three-tier architecture using blockchain. Formative evaluations of the prototype revealed that the system could successfully support patient-managed healthcare. The implications of this project would be changing the way patients and healthcare practitioners interact with each other by improving the quality of clinical encounters by allowing patients access to their health information, sharing the information with healthcare practitioners and both parties collaborating in the development of a treatment plan.

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Section: System Architecturementioning

confidence: 99%

Blockchain Technology for Empowering Patient-Centred Healthcare: A Pilot Study

Makubalo

Scholtz

Tokosi

2020

Lecture Notes in Computer Science

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“…In [48], Elgendi et al transfer the concept of SDN to the control and management of cellular and wireless network infrastructure, making it easier for a BS 26 (Base Station) to perform packet transport functions under the command of applications that are executed from a logically centralized controller. It is also argued that, due to the growing demand for greater capacity and coverage by mobile network users, a DenseNets architecture is proposed that increases the number of femto-cells in places where the number of subscribers is high, enabling significant interoperability with heterogeneous devices, thus achieving convergence to networks such as 5G.…”

Section: Gmentioning

confidence: 99%

State of the art in software defined networking (SDN)

Pérez¹,

Losada²,

Rojas³

et al. 2019

Vis. Electron.

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The growth of networks at a global level is inevitable due to the increase of users, devices and applications, such as: Internet of Things (IoT), processing and analysis of large amounts of information (Big Data), or streaming audio and video, which has demanded from the systems, greater storage resources and bandwidth. To this purpose, diverse paradigms have emerged for the centralized management of all the components of a network through fully administrable, centralized and dynamic technological platforms; among these is SDN (Software-Defined Networks). This document, consequently, establishes the state-of-art from a documentary research of a categorical type to be used as a frame of reference for research in the area of SDN by the Research Group of New Technologies of Social Application GIDENUTAS ascribed to the University Francisco Jose de Caldas. This is chronologically limited to a review, from 2007 until today, focused on the countries that have promoted the development and implementation of this new paradigm, using databases such as IEEE Xplore, Google Scholar, as well as documents from standardization organizations such as ONF and ITU.

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“…1) Hierarchical/Distributed Control Plane: Different proposals are put forward which define domains or clusters for each controller to resolve the scalability issue [81], [113], [117]- [119], [122]- [124]. The controllers can be connected to each other in a distributed manner or there could be a higher level controller to coordinate between the lower level controllers.…”

Section: B Control Planementioning

confidence: 99%

“…The size of the domain or clusters can be chosen to satisfy the delay constraints. Hierarchical control plane proposals suggest 2 or 3-tier architectures for scalability [113], ease in management specially in heterogeneous networks [122], and for fulfilling delay requirements [117], [122].…”

Section: B Control Planementioning

confidence: 99%

“…Popular Ideas References Key Issues/Solutions/Ideas [4], [56] 1-S/P-GW split in C/U planes, [2], [109]-[111] Application 1-EPC control nodes [81], [109] 2-S/P-GW CP part is used as application layer as applications/functions [112], [113] 3-CP/UP split is economically optimal [114]. [110], [115] 4-Centralized control may create bottlenecks [116] Control layer 1-Distributed control [113], [117] 1-Delay limit determines cluster size [118], [119] 2-Handover between clusters [118] 3-Optimal controller placement [111], [120] 4-Local controllers for time-critical tasks [3], [121] 2-Hierarchical control [81], [122] 1-Different controller for core, RAN, orchestration, etc. [123], [124] 2-Fine-grained control difficult for OpenFlow [119] 3-Global Network View [125], [126] 1-Store/update network state information (GNV) [115] 2-Local storage for delay-sensitive data 4-HetNets/multiRAT [62], [122] 1-Handover via virtual switches [127] and through virtualization [124], [128] [127], [129] 2-Joint resource allocation [9], [103], [129] 3-Traffic offloading [130] 4-End-to-end QoS [129] 5-Energy efficiency …”

Section: Sdn Layermentioning

confidence: 99%

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Will SDN Be Part of 5G?

Zaidi¹,

Friderikos

Yousaf³

et al. 2018

IEEE Commun. Surv. Tutorials

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For many, this is no longer a valid question and the case is considered settled with SDN/NFV (Software Defined Networking/Network Function Virtualization) providing the inevitable innovation enablers towards the realization of a virtualized, flexible, programmable and flexible 5G network. As SDN along with other technology enablers (including NFV) are still in the process of evolution, the first commercial deployment of 5G may take few years. However, some companies are claiming the availability of 5G solutions, but considering the monumental task of softwarization of mobile cellular networks there are genuine concerns that we may only see some point solutions involving SDN technology instead of a fully virtualized SDN-enabled 5G mobile network. In order to determine the technology readiness of SDN solutions in the context of 5G networks, this survey paper attempts to identify all important obstacles in the way, and looks at the state of the art of the relevant research. This survey is different from the previous surveys on SDN-based mobile networks as it focuses on the salient problems and discusses solutions proposed within and outside SDN literature. Our main focus is on fronthaul, backward compatibility, supposedly disruptive nature of SDN deployment, business cases and monetization of SDN related upgrades, latency of general purpose processors (GPP), and additional security vulnerabilities that softwarization brings along to the mobile network. We have also provided a summary of the architectural developments in SDN-based mobile network landscape, including deployment options for SDN within NFV framework, as not all work can be covered under the focused issues. This paper provides a comprehensive survey on the state of the art of SDNbased mobile networks and clearly points out the gaps in the technology.

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A three-tier SDN architecture for DenseNets

Cited by 15 publications

References 27 publications

Blockchain Technology for Empowering Patient-Centred Healthcare: A Pilot Study

Blockchain Technology for Empowering Patient-Centred Healthcare: A Pilot Study

State of the art in software defined networking (SDN)

Will SDN Be Part of 5G?

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