Design of a layer-based video streaming system over software-defined networks

Kalan, Reza Shokri; Çetinkaya, Cihat; Sayıt, Müge

doi:10.1109/nof.2017.8251213

Cited by 7 publications

(6 citation statements)

References 19 publications

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“…There are many studies in the literature related to scalable video transmission utilizing SDN. These works focus on either routing of the packets [14], [15] or getting assistance from SDN elements [16]. In the studies related to video streaming, SDN and scalable video codec, there is no similar work which focuses on no packet drop at the network layer.…”

Section: Background and Related Workmentioning

confidence: 99%

The Future of Media Streaming Systems: Transferring Video over New IP

Clayman

Tuker

Arasan

et al. 2021

2021 IEEE 22nd International Conference on High Performance Switching and Routing (HPSR)

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Big Packet Protocol (BPP), which is part of New IP, was designed to transfer packets for future networking applications, and aims to overcome obstacles within current networks for high precision services. One of the most important advantages of New IP is that it allows changes to packets during transmission. The strategy of BPP is to reduce the packet size by eliminating specific chunks, cutting out segments from the transferred video, rather than dropping or retransmitting packets. This provides an effective mechanism to enhance the performance of video streaming applications, by obtaining continuous delivery and minimum guaranteed quality at the receiver. In order to make video transmission over BPP effective, we need to select a video codec that can do multiple encodings for the same region, such as scalable video coding (SVC). To support such functionality, we have augmented the BPP packet structure in order to transfer video data. This paper describes the use of BPP for carrying video from servers to clients, and defines the packet structure for this purpose, plus the extensions needed to support SVC encoded video. To evaluate the proposed approach, we use SDN to facilitate BPP operations, with results showing a successful implementation of a system using these combined techniques.

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Section: Background and Related Workmentioning

confidence: 99%

The Future of Media Streaming Systems: Transferring Video over New IP

Clayman

Tuker

Arasan

et al. 2021

2021 IEEE 22nd International Conference on High Performance Switching and Routing (HPSR)

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“…Even for the studies that are related to layered video, the layer dependencies are not considered in the selection of the paths. In our previous work [59], we proposed an optimization model that selects video codec type and the optimal number of layers for the client which newly joined the system, where the codec type and layer selections stay constant during streaming. In this work, we enhanced our previous work [59] by adding a new module to the controller that provides to determine the optimal number of video layers by considering network fluctuations.…”

Section: B Has Architectures Based On Sdn and Sandmentioning

confidence: 99%

“…In our previous work [59], we proposed an optimization model that selects video codec type and the optimal number of layers for the client which newly joined the system, where the codec type and layer selections stay constant during streaming. In this work, we enhanced our previous work [59] by adding a new module to the controller that provides to determine the optimal number of video layers by considering network fluctuations. We also modified the metrics that are used for determining the optimal number of layers and codec type.…”

Section: B Has Architectures Based On Sdn and Sandmentioning

confidence: 99%

“…While (1) gives the expected packet loss ratio for a specific layer, (2) calculates estimated total packet loss ratio for all layers affected by the lost packet. In our previous work, we provided a formula for estimating of packet loss ratio by considering the layer dependencies for the video layers transferred over the same paths [59]. In this current work, we generalize this formula by also considering the layers of the same client, being sent over different paths.…”

Section: B Estimation Of the Packet Loss Ratiomentioning

confidence: 99%

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SDN Assisted Codec, Path and Quality Selection for HTTP Adaptive Streaming

Kalan

Sayıt

2021

IEEE Access

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Adaptive streaming over HTTP is the dominant video streaming technology for more than a decade. HTTP Adaptive Streaming (HAS) systems provide a framework which enables clients to adapt quality with respect to network fluctuations during streaming, hence to optimize the perceived quality on the client side. Recently, network assistance is integrated with HAS in order to improve underlying network conditions and to provide network-related information to the clients. The performance of HAS systems can be further enhanced if the characteristics of the streamed video are considered. In this paper, we propose a HAS system architecture where Software Defined Networking (SDN) technology is utilized for assisting clients to select the most appropriate video codec and bitrate under the constraint of current network conditions as well as routing the video packet over the appropriate paths. In the proposed architecture, layered video is used, where each additional layer improves the quality. The controller estimates the packet loss probability by taking video codec characteristics, the bitrates of the layers and network capacity into account. Based on these estimations, the controller selects the appropriate codec type and video quality for the clients and manage the network. Simulation results show that the performance of the video streaming architecture can be improved significantly when codec, quality and path selection are jointly considered, and combined with SDN flexibility and advantageous.

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“…Nevertheless, CDN server placement and SDN/NFV related solutions was not studied in this work. Although there are several SAND architecture utilizing SDN advantages proposed in the literature [8], [9], our study differs from these studies since virtualization concepts and cache placement problems are not previously considered.…”

Section: Related Workmentioning

confidence: 99%

Virtualized Cache Placement in an SDN/NFV Assisted SAND Architecture

Clayman

Kalan

Sayıt

2018

2018 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)

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Web-caches play an important role in the architecture of a Dynamic Adaptive Streaming over HTTP (DASH) system, which can bring video files near to the clients. In such systems, the placement of the caches affects the performance of the video streaming applications. In this paper we select the optimal network nodes for cache placement by taking into account characteristics such as the bandwidth of the paths, the places, and the number of the online clients, for a given network graph. For this purpose, we use a placement algorithm which is enhanced version of the Pressure algorithm proposed by Clegg which we call PressureCache, in an implementation of virtualized DASH Aware Network Elements (vDANEs). The results show that the proposed approach gives better performance in terms of received quality than random cache placement.

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Design of a layer-based video streaming system over software-defined networks

Cited by 7 publications

References 19 publications

The Future of Media Streaming Systems: Transferring Video over New IP

The Future of Media Streaming Systems: Transferring Video over New IP

SDN Assisted Codec, Path and Quality Selection for HTTP Adaptive Streaming

Virtualized Cache Placement in an SDN/NFV Assisted SAND Architecture

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