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Video distribution

description13 papers
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lightbulbAbout this topic
Video distribution refers to the processes and methods used to deliver video content to audiences through various platforms, including traditional broadcast, cable, and digital streaming services. It encompasses the technologies, strategies, and channels involved in making video accessible to viewers across different devices and locations.
lightbulbAbout this topic
Video distribution refers to the processes and methods used to deliver video content to audiences through various platforms, including traditional broadcast, cable, and digital streaming services. It encompasses the technologies, strategies, and channels involved in making video accessible to viewers across different devices and locations.

Key research themes

1. How can hybrid broadcasting protocols optimize bandwidth and waiting time in Video-on-Demand (VoD) services?

This research area focuses on the development of broadcasting protocols that reduce the bandwidth requirements for delivering popular video content simultaneously to multiple viewers, while minimizing user waiting time. It addresses the trade-offs between the number of data streams managed by the server and the total bandwidth consumed, as well as challenges related to client storage and implementation complexity. The role of hybrid protocols that combine benefits of low-bandwidth segmented streams with high-bandwidth shared streams is emphasized as a means to enhance system scalability and cost-effectiveness.

Key finding: Introduces the 'pagoda broadcasting protocol,' a hybrid broadcasting method that partitions videos into fixed-size segments broadcast over a limited number of high-bandwidth streams using time-division multiplexing. This... Read more
Key finding: Proposes a reactive video distribution approach cooperating with clients who forward video data to subsequent clients, substantially reducing server bandwidth load while not requiring multicast capabilities. This scheme... Read more
Key finding: Presents a three-layer architecture incorporating a main multimedia server, trackers, and proxy servers that dynamically cache video prefixes according to regional popularity to minimize client waiting times. The prefix... Read more

2. How does peer-to-peer (P2P) assistance improve scalability, traffic distribution, and user experience in Video-on-Demand systems?

This theme explores peer-assisted VoD systems where client devices contribute uplink bandwidth and storage to distribute video content, alleviating server and core network load. It investigates popularity-based content distribution schemes on peers, the challenges of peers' reliability, as well as caching strategies to maximize content availability and reduce network traffic. The theme highlights how P2P improves system scalability, adaptability to heterogeneous user access, and reduces costs in telecom-managed IPTV environments.

Key finding: Describes the GridCast P2P VoD system deployed on CERNET that leverages client caching and peer collaboration to significantly reduce server load. Evaluates two caching algorithms demonstrating multivideo caching increases... Read more
Key finding: Proposes a VoD streaming model that distributes popular and unpopular content between servers and peers based on content popularity, aiming to minimize core network traffic and improve system responsiveness. Shows that... Read more
Key finding: Develops an optimal bit allocation algorithm for fine-grained scalable (FGS) video streams transmitted from multiple heterogeneous senders in P2P or distributed multi-server environments. Demonstrates that FGS encoding... Read more
Key finding: Presents an end-to-end system architecture within the SARACEN project enabling real-time video capture from mobile devices and distribution over a P2P network using super node proxies that transcode and distribute scalable... Read more

3. How can scalable video coding (SVC) and adaptive streaming optimize video quality, network resource usage, and quality of experience in IPTV and HTTP adaptive streaming services?

This theme covers scalable video coding techniques such as the H.264/SVC extension and HTTP Adaptive Streaming (HAS) protocols that dynamically adapt video bitrates, spatial and temporal resolutions, or encoding layers in response to changing network conditions and heterogeneous client devices. It investigates methods to gracefully degrade video quality under constraints, optimize bit allocation for scalable streams, and implement traffic shaping algorithms to balance server load, improve user QoE, and enhance fairness in resource-constrained IPTV and HTTP streaming environments.

Key finding: Provides a comprehensive overview of the H.264/SVC extension, highlighting its improved coding efficiency and complexity trade-offs compared to previous scalable codecs. Demonstrates how SVC enables graceful quality... Read more
Key finding: Proposes a server-side HAS traffic shaping algorithm that incorporates video complexity metrics to optimize quality level selection under network and server constraints. Simulation results show the approach can serve up to... Read more
Key finding: Proposes an optimal bit allocation framework for fine-grained scalable video streams enabling precise quality adaptation in distributed streaming environments. By enabling bit-level scalability and flexible sender... Read more

All papers in Video distribution

For many journalists and scholars, what distinguishes binge-watching from garden variety television viewing is the number of episodes viewed in one sitting. However, the question of what viewers define as 'bingeing' is likely to shift... more
For many journalists and scholars, what distinguishes binge-watching from garden variety television viewing is the number of episodes viewed in one sitting. However, the question of what viewers define as 'bingeing' is likely to shift... more
Silencio. Ciudad. Sonido público: contar el oxímoron. La Fonoteca de Sevilla es un centro de arte dedicado a las prácticas sonoras, la indagación sobre otras ideas de ciudad a partir del pensamiento sobre el sonido y el silencio, la... more
RESUMEN: Un niño mira por la ventana de un coche en movimiento. Trata de enfocar algún punto en el paisaje que lo cautive, alguna rareza, un gesto. Nada de lo que observa lo emociona, y se enfada. El presente ha perdido interés, es ahora... more
RESUMEN La conservación de los formatos originales de una disciplina artística como el videoarte es motivo de estudio desde hace pocos años. Distribuidoras de vídeo y museos de arte contemporáneo son los principales organismos encargados... more
This paper presents the Dynamic Adaptive Streaming over CoAP (DASCo), a solution for adaptive media streaming in the Internet of Things (IoT) environment. DASCo combines DASH (Dynamic Adaptive Streaming over HTTP), the widespread open... more
In a video on demand system, the main video repository may be far away from the user and generally has limited streaming capacities. Since a high quality video’s size is huge, it requires high bandwidth for streaming over the internet. In... more
Dynamic adaptive video streaming over HTTP (DASH) has been developed as one of the most suitable technologies for the transmission of live and on-demand audio and video content over any IP network. In this work, we propose a machine... more
The increasing demand for video content and the fast adoption of HTTP Adaptive Streaming (HAS) has led to the need for sophisticated streaming optimization solutions. One of the main drawbacks of HAS is that the user is responsible for... more
Dynamic Adaptive Streaming over HTTP (DASH) is a new and promising streaming protocol, based on the Media Presentation Description (MPD) specification. With the increasing demand for Internet video streaming, methods for profiting from... more
Reinforcement Learning is an important class of optimization which has recently been used in the area of dynamic adaptive streaming over HTTP (DASH). Though DASH is very popular method of video delivery in recent years it is plagued with... more
Celem niniejszej refleksji jest rekonstrukcja atmosfery towarzyszącej domowemu odbiorowi filmowemu w latach 90. Przedmiotem zainteresowania stanie się – po pierwsze – kaseta wideo w kontekście zasady odwzajemnionego altruizmu – ekonomii... more
O presente trabalho introduz uma pesquisa sobre as animações de horror brasileiras que participaram do festival Animaldiçoados, criado em 2010, e que já teve desde então seis edições. O objetivo deste primeiro levantamento é caracterizar... more
European Network for Cinema and Media Studies (NECS) Conference is one of the biggest and the most prestigious academic events dedicated to the audiovisual culture in Europe. Each year, it takes place in a different country. The 2015... more
Este artigo propõe a possibilidade da aplicação de um modelo de conteúdo aberto baseado nas intenções e propostas do modelo do software livre que aproxime produto, processo e espectador. Descrevemos os principais conceitos que direcionam... more
Video streaming is now responsible for the majority of Internet traffic and is expected to keep growing over the coming years. Dynamic Adaptive Streaming over HTTP (DASH) [1] is an ISO/IEC MPEG multiquality layer streaming solution that... more
The recent introduction of video streaming services into the Australian television industry has already had a significant impact on the local broadcast and subscription ecology. Undoubtedly, the sudden influx of foreign content and... more
The increasing demand for video content and the fast adoption of HTTP Adaptive Streaming (HAS) has led to the need for sophisticated streaming optimization solutions. One of the main drawbacks of HAS is that the user is responsible for... more
How does algorithmic information processing affect the meaning of the word culture, and, by extension, cultural practice? We address this question by focusing on the Netflix Prize (2006–2009), a contest offering US$1m to the first... more
How does algorithmic information processing affect the meaning of the word culture, and, by extension, cultural practice? We address this question by focusing on the Netflix Prize (2006–2009), a contest offering US$1m to the first... more
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