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Journal ArticleDOI

Network function virtualization: Challenges and opportunities for innovations

TLDR
A brief overview of NFV is provided, its requirements and architectural framework are explained, several use cases are presented, and the challenges and future directions in this burgeoning research area are discussed.
Abstract
Network function virtualization was recently proposed to improve the flexibility of network service provisioning and reduce the time to market of new services. By leveraging virtualization technologies and commercial off-the-shelf programmable hardware, such as general-purpose servers, storage, and switches, NFV decouples the software implementation of network functions from the underlying hardware. As an emerging technology, NFV brings several challenges to network operators, such as the guarantee of network performance for virtual appliances, their dynamic instantiation and migration, and their efficient placement. In this article, we provide a brief overview of NFV, explain its requirements and architectural framework, present several use cases, and discuss the challenges and future directions in this burgeoning research area.

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Citations
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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.
Proceedings ArticleDOI

A Survey of Fog Computing: Concepts, Applications and Issues

TL;DR: The definition of fog computing and similar concepts are discussed, representative application scenarios are introduced, and various aspects of issues the authors may encounter when designing and implementing fog computing systems are identified.
Journal ArticleDOI

Applications of Deep Reinforcement Learning in Communications and Networking: A Survey

TL;DR: This paper presents a comprehensive literature review on applications of deep reinforcement learning (DRL) in communications and networking, and presents applications of DRL for traffic routing, resource sharing, and data collection.
Book

Unmanned Aerial Vehicles: A Survey on Civil Applications and Key Research Challenges

TL;DR: The use of unmanned aerial vehicles (UAVs) is growing rapidly across many civil application domains, including real-time monitoring, providing wireless coverage, remote sensing, search and rescue, delivery of goods, security and surveillance, precision agriculture, and civil infrastructure inspection.
Journal ArticleDOI

Resource Allocation in NFV: A Comprehensive Survey

TL;DR: This paper presents a comprehensive state of the art of NFV-RA by introducing a novel classification of the main approaches that pose solutions to solve the NFV resource allocation problem.
References
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Journal ArticleDOI

The cost of a cloud: research problems in data center networks

TL;DR: This work examines the costs of cloud service data centers today and proposes (1) joint optimization of network and data center resources, and (2) new systems and mechanisms for geo-distributing state.
Proceedings ArticleDOI

Making middleboxes someone else's problem: network processing as a cloud service

TL;DR: APLOMB solves real problems faced by network administrators, can outsource over 90% of middlebox hardware in a typical large enterprise network, and, in a case study of a real enterprise, imposes an average latency penalty of 1.1ms and median bandwidth inflation of 3.8%.
Proceedings ArticleDOI

ClickOS and the art of network function virtualization

TL;DR: This work introduces ClickOS, a high-performance, virtualized software middlebox platform, and implements a wide range of middleboxes including a firewall, a carrier-grade NAT and a load balancer and shows that ClickOS can handle packets in the millions per second.
Proceedings ArticleDOI

The Impact of Virtualization on Network Performance of Amazon EC2 Data Center

TL;DR: The results show that even though the data center network is lightly utilized, virtualization can still cause significant throughput instability and abnormal delay variations.
Proceedings ArticleDOI

OpenNF: enabling innovation in network function control

TL;DR: This work designs a control plane called OpenNF that uses carefully designed APIs and a clever combination of events and forwarding updates to address race conditions, bound overhead, and accommodate a variety of NFs.
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