Proceedings ArticleDOI
Redundant placement of virtualized network functions for LTE evolved Multimedia Broadcast Multicast Services
Hernani D. Chantre,Nelson L. S. da Fonseca +1 more
- pp 1-7
TLDR
A redundancy seriesparallel model is introduced to improve reliability of LTE eMBMS E2E services via redundancy, virtualized network functions (VNF), and autonomic service placement.Abstract:
Mobile Operators have experienced a growth of demand of new services with strict requirements and features which imposes challenges to operate the mobile wireless network. To tackle these challenges, Telcos must provide flexible, dynamic network architecture, furnishing resiliency to ensure end-to-end (E2E) service continuity in case of resource failures. Virtualization of the core network elements of cellular Long-Term Evolution (LTE) and LTE evolved Multimedia Broadcast Multicast Service (eMBMS) technology has been proposed as a key solution to cope with these new demands. By employing point-to-multipoint services to any wireless device, the LTE eMBMS, allows Mobile Operators (MOs) to send a single stream of data to all mobile users in a specific area. The LTE eMBMS is a potential E2E service technology to leverage costumer experience as well as to optimize use of network resources. We propose to improve the reliability of LTE eMBMS E2E services via redundancy, virtualized network functions (VNF), and autonomic service placement. In this paper, we introduce a redundancy seriesparallel model to improve reliability of LTE eMBMS services. The model is formulated as a VNF redundancy allocation problem (RAP). We employed the particle swarm optimization (PSO) technique to solve the RAP problem to evaluate the performance of the proposed model.read more
Citations
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Book ChapterDOI
A Single-Hop Selection Strategy of VNFs Based on Traffic Classification in NFV
TL;DR: This paper proposes a single-hop VNFs selection strategy based on the results of traffic classification which utilizes Multi-Grained Cascade Forest (gcForest) to distinguish user behaviors on the internet.
Dissertation
On the design of a cost-efficient resource management framework for low latency applications
TL;DR: The proposed framework achieves 80% of deployment cost reduction for the design of low latency communication infrastructures; continuously saves up to 33% of operational cost through dynamic resource management while always achieving low latencies; and succeeds in providing fault tolerance to low latency communications with a guaranteed operational cost.
Journal ArticleDOI
Performance-aware placement and chaining scheme for virtualized network functions: a particle swarm optimization approach
TL;DR: In this article, the authors solve the VNF placement and chaining problem as an optimization problem based on the particle swarm optimization (PSO) algorithm, aiming to minimize the required number of used servers, the average propagation delay of paths, and the average utilization of links while meeting network demands and constraints.
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APVNFC: Adaptive Placement of Virtual Network Function Chains
TL;DR: In this paper , an adaptive model for placing VNF chains to overcome the constant bandwidth and flow processing requirements while deploying the VNFs in the network is presented. And the experimental evaluation shows that the adaptive model can deliver stable network services.
References
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Proceedings ArticleDOI
Particle swarm optimization
TL;DR: A concept for the optimization of nonlinear functions using particle swarm methodology is introduced, and the evolution of several paradigms is outlined, and an implementation of one of the paradigm is discussed.
Journal ArticleDOI
Network Function Virtualization: State-of-the-Art and Research Challenges
TL;DR: In this article, the authors survey the state-of-the-art in NFV and identify promising research directions in this area, and also overview key NFV projects, standardization efforts, early implementations, use cases, and commercial products.
Journal ArticleDOI
NFV: state of the art, challenges, and implementation in next generation mobile networks (vEPC)
TL;DR: In order to reduce signaling traffic and achieve better performance, this article proposes a criterion to bundle multiple functions of a virtualized evolved packet core in a single physical device or a group of adjacent devices.
Proceedings ArticleDOI
Software Reliability Engineering: A Roadmap
TL;DR: The history of software reliability engineering, the current trends and existing problems, and specific difficulties are reviewed and possible future directions and promising research subjects inSoftware reliability engineering are addressed.