Special Issue "Novel Cloud-Based Service/Application Platforms and Ecosystems"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Computer Science & Engineering".

Deadline for manuscript submissions: 30 November 2021.

Special Issue Editors

Prof. Dr. Balázs Sonkoly
E-Mail Website
Guest Editor
Department of Telecommunications and Media Informatics, Budapest University of Technology and Economics, 1117 Budapest, Hugary
Interests: NFV; SDN; multi-domain orchestration; SFC control plane
Prof. Dr. László Toka
E-Mail Website
Guest Editor
Department of Telecommunications and Media Informatics, Budapest University of Technology and Economics, 1117 Budapest, Hugary
Interests: computer networking; network communication
Dr. Luis Miguel Contreras-Murillo
E-Mail Website
Guest Editor
Telefónica I+D / CTIO unit, Madrid, Spain
Interests: SDN; NFV; 5G; transport technologies; slicing; interconnection
Special Issues and Collections in MDPI journals
Dr. Róbert Szabó
E-Mail
Guest Editor
Ericsson Research, Torshamnsgatan 21, Stockholm, Sweden
Interests: virtualisation; software defined networking; 5G mobile communication; cloud computing; computer centres; cost reduction; graph theory; monitoring; resource allocation; task analysis; telecommunication services; wide area networks; telecommunication traffic

Special Issue Information

Dear Colleagues,

In the fast approaching 5G era telcos, cloud operators and online application providers will join forces to deliver ICT services to customers globally. Several technologies act as enablers for novel application design: software-defined networking (SDN) along with network function virtualization (NFV) ensure that online services are elastic and resilient, and their deployments are fast and flexible. Besides revolutionizing telco services, virtualization provides us with the possibility of creating online applications that require low latency, e.g., X reality (XR), and tactile Internet applications over edge cloud infrastructure. In this ecosystem, not only infrastructure and platform-level technologies play important roles, but business aspects will also greatly influence the capability and performance of the global system: the collaboration of provider actors will determine the availability and the end user prices of certain services.This Special Issue focuses on recent research results and challenges, as well as novel developments and technologies, related to NFV, SDN, and virtualization in general. We are particularly interested in application level design, system and network management methods, and the control and data plane performance of cloudified platforms. We welcome the latest findings from research, ongoing projects, and review articles that can provide readers with current research trends and solutions. The potential topics include, but are not limited to:

  • Novel telco services, applications enabled by SDN/NFV
  • Ultra-low latency applications, e.g., AR/VR/MR (augmented/virtual/mixed reality), tactile Internet enabled by edge computing
  • SDN, NFV, beyond 5G technologies
  • Cloud native platforms: CaaS (container as a service), FaaS (function as a service), serverless
  • Real-time cloud solutions
  • Network-cloud integration
  • Novel/disrupt network technologies, e.g., NDN (named data networking)
  • AI-based technologies and system components
  • Business aspects of cloudification and cloud/network provider federation

Prof. Dr. Balázs Sonkoly
Prof. Dr. László Toka
Dr. Byung-Seo Kim
Mr. Luis Miguel Contreras-Murillo
Dr. Róbert Szabó
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • SDN
  • NFV
  • Beyond 5G
  • Cloud native
  • Edge computing
  • Real-time cloud
  • AR/VR/MR
  • Tactile Internet
  • NDN
  • AI/ML
  • Business models

Published Papers (5 papers)

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Research

Article
Feature Matching Synchronized Reasoning from Energy-Based Memory Network for Intelligent Data Management in Cloud Computing Data Center
Electronics 2021, 10(16), 1900; https://doi.org/10.3390/electronics10161900 - 08 Aug 2021
Viewed by 381
Abstract
A cloud data center for software-as-a-service (SaaS) was built for the purpose of stably managing these server computers in one place in order to provide an uninterrupted service, not only for a stable power supply and security but also for the efficient data [...] Read more.
A cloud data center for software-as-a-service (SaaS) was built for the purpose of stably managing these server computers in one place in order to provide an uninterrupted service, not only for a stable power supply and security but also for the efficient data management. To manage such a data center efficiently, it is important to build a cloud database with structured storage above all else. In recent decades, many studies have focused on designing cloud data centers and most of the research has focused on communication traffic, routing, topological issues and communication technology. However, in order to build an efficient cloud database that can support user demand, the most sophisticated intelligent system, based on AI technology and considering user convenience, should be designed. From this viewpoint, adopting human brain functions, Energy-Based Memory Network was designed for a knowledge-based frame of an intelligent system. And its event-related synchronized data extraction mechanism was proposed. In particular, a Thinking Thread extraction phase was implemented for the reasoning process using qualia matching and a deep extraction method in a cloud database. The purpose of this approach is to design and implement an intelligent cloud database that has an efficient structure and mechanism for supporting user demand and providing accurate, prompt services. In experiments, the working phase of the functions was simulated with data and analyzed. As a result, it was confirmed that the proposed system works well and intelligently for the design purpose. Full article
(This article belongs to the Special Issue Novel Cloud-Based Service/Application Platforms and Ecosystems)
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Article
A Secure Link-Layer Connectivity Platform for Multi-Site NFV Services
Electronics 2021, 10(15), 1868; https://doi.org/10.3390/electronics10151868 - 03 Aug 2021
Viewed by 413
Abstract
Network Functions Virtualization (NFV) is a key technology for network automation and has been instrumental to materialize the disruptive view of 5G and beyond mobile networks. In particular, 5G embraces NFV to support the automated and agile provision of telecommunication and vertical services [...] Read more.
Network Functions Virtualization (NFV) is a key technology for network automation and has been instrumental to materialize the disruptive view of 5G and beyond mobile networks. In particular, 5G embraces NFV to support the automated and agile provision of telecommunication and vertical services as a composition of versatile virtualized components, referred to as Virtual Network Functions (VNFs). It provides a high degree of flexibility in placing these components on distributed NFV infrastructures (e.g., at the network edge, close to end users). Still, this flexibility creates new challenges in terms of VNF connectivity. To address these challenges, we introduce a novel secure link-layer connectivity platform, L2S. Our solution can automatically be deployed and configured as a regular multi-site NFV service, providing the abstraction of a layer-2 switch that offers link-layer connectivity to VNFs deployed on remote NFV sites. Inter-site communications are effectively protected using existing security solutions and protocols, such as IP security (IPsec). We have developed a functional prototype of L2S using open-source software technologies. Our evaluation results indicate that this prototype can perform IP tunneling and cryptographic operations at Gb/s data rates. Finally, we have validated L2S using a multi-site NFV ecosystem at the Telefonica Open Network Innovation Centre (5TONIC), using our solution to support a multicast-based IP television service. Full article
(This article belongs to the Special Issue Novel Cloud-Based Service/Application Platforms and Ecosystems)
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Article
Extending TOSCA for Edge and Fog Deployment Support
Electronics 2021, 10(6), 737; https://doi.org/10.3390/electronics10060737 - 20 Mar 2021
Viewed by 629
Abstract
The emergence of fog and edge computing has complemented cloud computing in the design of pervasive, computing-intensive applications. The proximity of fog resources to data sources has contributed to minimizing network operating expenditure and has permitted latency-aware processing. Furthermore, novel approaches such as [...] Read more.
The emergence of fog and edge computing has complemented cloud computing in the design of pervasive, computing-intensive applications. The proximity of fog resources to data sources has contributed to minimizing network operating expenditure and has permitted latency-aware processing. Furthermore, novel approaches such as serverless computing change the structure of applications and challenge the monopoly of traditional Virtual Machine (VM)-based applications. However, the efforts directed to the modeling of cloud applications have not yet evolved to exploit these breakthroughs and handle the whole application lifecycle efficiently. In this work, we present a set of Topology and Orchestration Specification for Cloud Applications (TOSCA) extensions to model applications relying on any combination of the aforementioned technologies. Our approach features a design-time “type-level” flavor and a run time “instance-level” flavor. The introduction of semantic enhancements and the use of two TOSCA flavors enables the optimization of a candidate topology before its deployment. The optimization modeling is achieved using a set of constraints, requirements, and criteria independent from the underlying hosting infrastructure (i.e., clouds, multi-clouds, edge devices). Furthermore, we discuss the advantages of such an approach in comparison to other notable cloud application deployment approaches and provide directions for future research. Full article
(This article belongs to the Special Issue Novel Cloud-Based Service/Application Platforms and Ecosystems)
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Article
State Management for Cloud-Native Applications
Electronics 2021, 10(4), 423; https://doi.org/10.3390/electronics10040423 - 09 Feb 2021
Cited by 1 | Viewed by 957
Abstract
The stateless cloud-native design improves the elasticity and reliability of applications running in the cloud. The design decouples the life-cycle of application states from that of application instances; states are written to and read from cloud databases, and deployed close to the application [...] Read more.
The stateless cloud-native design improves the elasticity and reliability of applications running in the cloud. The design decouples the life-cycle of application states from that of application instances; states are written to and read from cloud databases, and deployed close to the application code to ensure low latency bounds on state access. However, the scalability of applications brings the well-known limitations of distributed databases, in which the states are stored. In this paper, we propose a full-fledged state layer that supports the stateless cloud application design. In order to minimize the inter-host communication due to state externalization, we propose, on the one hand, a system design jointly with a data placement algorithm that places functions’ states across the hosts of a data center. On the other hand, we design a dynamic replication module that decides the proper number of copies for each state to ensure a sweet spot in short state-access time and low network traffic. We evaluate the proposed methods across realistic scenarios. We show that our solution yields state-access delays close to the optimal, and ensures fast replica placement decisions in large-scale settings. Full article
(This article belongs to the Special Issue Novel Cloud-Based Service/Application Platforms and Ecosystems)
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Article
On the Mediation Price War of 5G Providers
Electronics 2020, 9(11), 1901; https://doi.org/10.3390/electronics9111901 - 12 Nov 2020
Cited by 1 | Viewed by 845
Abstract
Virtualization guarantees that, moving toward 5G, online services will be versatile and the creation of those will be quick, satisfying the interest of end-clients to a higher degree than what is plausible today. Telcos, cloud administrators, and online application suppliers will unite for [...] Read more.
Virtualization guarantees that, moving toward 5G, online services will be versatile and the creation of those will be quick, satisfying the interest of end-clients to a higher degree than what is plausible today. Telcos, cloud administrators, and online application suppliers will unite for conveying those services to clients around the world. Thus, in order to help their portability, or the simple geographic range of the offered application, the business arrangements among the actors must scale over numerous domains and a guaranteed nature of joint effort among different stakeholders is important. Therefore, the vision of the 5G environment is majorly established on the federation of these partners in which they can consistently strive towards the objective of making reliable resource slices and deploying applications within for a maximal geographic reach of clients. In this environment, business perspectives will significantly impact the technical capacity of the system: the business arrangements of the providers will innately decide the accessibility and the end-client costs of certain services. In this work, we model the business relations of infrastructure providers as a variation of network formation games. We infer conditions under which the current transit-peering structure of network providers stays unblemished, and we also draw the specifics of an envisioned setup in which providers create business links among each other starting with a clean slate. Full article
(This article belongs to the Special Issue Novel Cloud-Based Service/Application Platforms and Ecosystems)
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