OpenSAN

Bao, Jinzhen; Zhao, Baokang; Yu, Wanrong; Zhang, Feng; Wu, Chunqing; Zhang, Gong

doi:10.1145/2740070.2631454

Cited by 74 publications

(16 citation statements)

References 2 publications

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“…For example, in OpenSAN proposed in Ref. [18] SDN controllers were placed in GEO satellites because of their reliable links and wide coverage. In Ref.…”

Section: Nep In Sdn/nfv Based Sagin Bnmentioning

confidence: 99%

“…In some cases such as OpenSAN in Ref. [18], the management plane was proposed to be in charge of the resource allocation, mobility management, routing policy calculation and so on. The management plane makes decisions based on information collected from the data plane via the control plane.…”

Section: Nep In Sdn/nfv Based Sagin Bnmentioning

confidence: 99%

“…In Ref. [17], it was pointed out that mmWave could fulfill the requirements of high data rates and low transmission latency due to its wide spectrum. SDN/NFV can bring flexibility in NEP, and flexible NEP can further support the intelligent service provision scheme in 5G.…”

Section: Sagin Physical Architecturementioning

confidence: 99%

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Network Element Placement for Space‐Air‐Ground Integrated Network: A Tutorial

Geng

Cao

Cui

et al. 2022

Chinese J of Electronics

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With the demand for Internet connectivity in remote areas, the space‐air‐ground integrated network (SAGIN) was proposed to achieve ubiquitous coverage and enhance service capabilities of extant terrestrial networks. The paradigm of virtual network element placement (NEP) is applied into SAGIN. It can save energy and operating costs by placing specific network elements (NEs) as software instances. In addition, it helps to provide services in end‐to‐end networks with its ability to allocate and manage resources flexibly. However, NEP faces some challenges in SAGIN. The network topologies can be dynamic, and links such as the satellite‐to‐ground and air‐to‐ground ones are prone to fail. These will make NEP management more complicated. Moreover, the static NEP schemes are hard to accommodate the time‐varying traffic. In this context, this work explains the NEP problem in SAGIN from three aspects, i.e., the SAGIN radio access network (RAN), the SAGIN core network (CN), and the SAGIN barrier network (BN). First, the physical and networking architectures of SAGIN are introduced. Then the status of the network element placement and corresponding challenges are described from these two aspects. Finally, this paper discusses future research directions and key technical challenges.

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“…For example, in OpenSAN proposed in Ref. [18] SDN controllers were placed in GEO satellites because of their reliable links and wide coverage. In Ref.…”

Section: Nep In Sdn/nfv Based Sagin Bnmentioning

confidence: 99%

Section: Nep In Sdn/nfv Based Sagin Bnmentioning

confidence: 99%

See 1 more Smart Citation

Network Element Placement for Space‐Air‐Ground Integrated Network: A Tutorial

Geng

Cao

Cui

et al. 2022

Chinese J of Electronics

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“…At present, some scholars at home and abroad have proposed to apply SDN technology to the SIN, mainly focusing on the architecture and controller deployment strategy. Document [14] proposes an OpenSAN model, which is a typical SDN-based satellite network structure. Document [15] presents a space integrated multi-layer satellite communication network based on software definition network and virtualization of network functions.…”

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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“…In this regard, communications play an important role, since their overheads may not be negligible. Different satellite network architectures have been proposed taking into account efficiency and flexibility regarding new technologies, rendering overheads in the order of nanoseconds [36,37]. Moreover, satellite communications have been also envisioned for FPGA usage [38], being flexibility, reconfigurability and reliability the main parameters assessed.…”

Section: Distributed On-board Processingmentioning

confidence: 99%

A Runtime-Scalable and Hardware-Accelerated Approach to On-Board Linear Unmixing of Hyperspectral Images

et al. 2018

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Space missions are facing disruptive innovation since the appearance of small, lightweight, and low-cost satellites (e.g., CubeSats). The use of commercial devices and their limitations in cost usually entail a decrease in available on-board computing power. To face this change, the on-board processing paradigm is advancing towards the clustering of satellites, and moving to distributed and collaborative schemes in order to maintain acceptable performance levels in complex applications such as hyperspectral image processing. In this scenario, hybrid hardware/software and reconfigurable computing have appeared as key enabling technologies, even though they increase complexity in both design and run time. In this paper, the ARTICo3 framework, which abstracts and eases the design and run-time management of hardware-accelerated systems, has been used to deploy a networked implementation of the Fast UNmixing (FUN) algorithm, which performs linear unmixing of hyperspectral images in a small cluster of reconfigurable computing devices that emulates a distributed on-board processing scenario. Algorithmic modifications have been proposed to enable data-level parallelism and foster scalability in two ways: on the one hand, in the number of accelerators per reconfigurable device; on the other hand, in the number of network nodes. Experimental results motivate the use of ARTICo3-enabled systems for on-board processing in applications traditionally addressed by high-performance on-Earth computation. Results also show that the proposed implementation may be better, for certain configurations, than an equivalent software-based solution in both performance and energy efficiency, achieving great scalability that is only limited by communication bandwidth.

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OpenSAN

Cited by 74 publications

References 2 publications

Network Element Placement for Space‐Air‐Ground Integrated Network: A Tutorial

Network Element Placement for Space‐Air‐Ground Integrated Network: A Tutorial

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

A Runtime-Scalable and Hardware-Accelerated Approach to On-Board Linear Unmixing of Hyperspectral Images

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