Towards SDN/NFV-enabled satellite networks

Gardikis, Georgios; Koumaras, Harilaos; Sakkas, Chris; Koumaras, Vaios

doi:10.1007/s11235-017-0309-0

Cited by 18 publications

(7 citation statements)

References 4 publications

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“…Assume that the number of VNF in each SFC in the simulation scenario follows the random distribution of Refs. [2,5]. Assume that each satellite node can act as a service provider node and host multiple VNFs in the form of a general-purpose edge server.…”

Section: Environmental Setupmentioning

confidence: 99%

“…For example, the computing capacity of SDSN nodes are set in the range of 200-400 units, and the bandwidth capacity of Inter-Satellite Links (ISLs) and Satellite-Terrestrial Links (STLs) are set in the range of 200-400 units, while the Inter Orbit Link is set in the range of 150-300 units. Suppose the service requests arriving obeys the Poisson distribution; then, the arriving rate is [0.05,0.2], the value range of the service function chain length is [2,5], the demand for node computing and link bandwidth resources obeys uniform distribution, the value range is [2,5], and the value range of lifetime is [30,80]ms.…”

Section: Environmental Setupmentioning

confidence: 99%

“…However, there are some problems such as network management, and control processes are complex; network structures are solidified with low flexibility and poor reusability. In contrast, software defined satellite network (SDSN) [1,2], is a new generation of satellite network architecture based on the idea of software defined network. Its essence is to separate the control function of satellite network from the function of data forwarding, so as to realize the efficient centralized control function and flexible management function of satellite network, which makes SDSN a promising research direction in future.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Service Function Chain Deployment Scheme of the Software Defined Satellite Network

Qiao

et al. 2022

Mobile Information Systems

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The aim of this study was to reduce the influence of highly dynamic substrate network topology and large transmission delay caused by long communication distance between satellites and ground in Software Defined Satellite Networks (SDSNs), and a Partial Observation Markov Decision Process (POMDP)-based service function chain (SFC) deployment scheme of SDSN is proposed. Under this SDSN architecture, the network topology changes could be obtained through the SDN centralized control ability. Due to the topology changes, which may cause inevitable observation errors and transmission delays, the complete actual topology and network states cannot be obtained in real time. Thus, we put forward a POMDP model–based SFC deployment scheme, and an approximate iterative algorithm to solve the problem, aiming at optimizing the end-to-end network delay in the SDSN. The simulation results show that our model can optimize the delay of SFC deployment process, and improve the resource utilization and network throughput of the SDSN.

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Section: Environmental Setupmentioning

confidence: 99%

Section: Environmental Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Service Function Chain Deployment Scheme of the Software Defined Satellite Network

Qiao

et al. 2022

Mobile Information Systems

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“…The network nodes only need to execute the instructions of the controller to verify the performance of the algorithm or protocol. This makes the research and verification of communication network technology more convenient and fast [18,19]. (5) Data plane network equipment in SDN only realizes forwarding function, which can simplify the design of network equipment, facilitate the startup and maintenance of equipment, reduce the cost of equipment, and bring great convenience to on-board equipment.…”

Section: Related Workmentioning

confidence: 99%

Multi-Topology Routing Algorithms in SDN-Based Space Information Networks

Meng

2019

Future Internet

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Aiming at the complex structure of the space information networks (SIN) and the dynamic change of network topology, in order to design an efficient routing strategy, this paper establishes a SIN management architecture based on Software-defined Networking (SDN). A routing algorithm flow of the spatial information network based on a snapshot sequence is designed. For different spatial tasks with different Quality of Service (QoS) requirements, the concept of integrated link weight is proposed. The Warshall–Floyd algorithm is used to design the optimal routing strategy. A Task-oriented Bandwidth Resource Allocation (TBA) algorithm is proposed for multiple spatial tasks in the same link. Simulation results show that the algorithm can effectively guarantee the priority transmission of important tasks and avoid the unnecessary waste of bandwidth resources.

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“…This framework could allow a full virtualization of the satellite delivery chain and its provision "as-a-Service" to multiple tenants contributing to the Satellite Network-as-a-Service (SatNaaS) paradigm [10]. ARTES 1 CLOUDSAT aims to determine the applicability of SDN and NFV technologies in order to define and validate integrated virtualized satellite-terrestrial architectures [11]. The network architecture is composed of the following subsystems:…”

Section: B Research Projectsmentioning

confidence: 99%

Satellite Networking Integration in the 5G Ecosystem: Research Trends and Open Challenges

et al. 2018

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The envisioned 5G ecosystem will be composed of heterogeneous networks based on different technologies and communication means, including satellite communication networks. The latter can help increase the capabilities of terrestrial networks, especially in terms of higher coverage, reliability, and availability, contributing to the achievement of some of the 5G Key Performance Indicators (KPIs). Anyway, technological changes are not immediate. Many current satellite communication networks are based on proprietary hardware, which hinders the integration with future 5G terrestrial networks as well as the adoption of new protocols and algorithms. On the other hand, the two main paradigms that are emerging in the networking scenario-namely, Software Defined Networking (SDN) and Network Functions Virtualization (NFV)-can change this perspective. In this respect, this paper presents first an overview of the main research works in the field of SDN satellite networks, in order to understand the already proposed solutions. Then, some open challenges are described in the light of the network slicing concept by 5G virtualization, along with a possible roadmap including different network virtualization levels. The yet unsolved problems are evidenced toward the development and deployment of a complete integration of satellite components in the 5G ecosystem.

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Towards SDN/NFV-enabled satellite networks

Cited by 18 publications

References 4 publications

A Service Function Chain Deployment Scheme of the Software Defined Satellite Network

A Service Function Chain Deployment Scheme of the Software Defined Satellite Network

Multi-Topology Routing Algorithms in SDN-Based Space Information Networks

Satellite Networking Integration in the 5G Ecosystem: Research Trends and Open Challenges

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