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This paper considers the characteristic of highspeed train about precise timing information, such as arrival time, depending duration on station, traveling time and current location of train, to design a video proxy agent for VoD service in train. Based on the information of current active video flows, a burst prefetching scheme is developed when the high-speed train depends on station. The video...
From both technical and social viewpoints there is great value in services that require devices (and therefore people) to be co-located. The very act of co-location brings with it entirely new dynamics and collaboration; furthermore, devices in coalition can render services and provide experiences that a single device might not be able to. In this paper we describe the motivation, design, and uses...
With the emergence of multimode terminals and the deployment of multiple access networks, users are expecting ubiquitous and seamless connectivity across heterogeneous networks when using IP-based applications. For bandwidth intensive IP-based application such as Internet Protocol Television (IPTV), the multimedia contents are usually transmitted via multicast delivery for reason of efficiency. However,...
IPTV is an emerging Internet application, and is revolutionizing the entertainment and media industries. In this paper, we examine the current progress in research and development of IPTV systems. We provide an overview of two major IPTV system architectures, namely, the IP multicast architecture and the P2P architecture, and review various challenges, design issues, and interesting research problems...
Interactive multiview video streaming (IMVS) is an application that streams to a client one out of N available video views for observation, but client can periodically request switches to neighboring views as the video is played back uninterrupted in time. Previous IMVS works focused on the design of a frame structure at encoding time, trading off expected transmission rate with storage, without knowing...
The video streaming in the multimedia resource database,running in the campus network,its core is the video streaming technology application based on the MPEG format (including MPEG-1, MPEG-2, and MPEG-4, etc). By the design and calculation about the video of MPEG format in the multimedia resource database,this article has provided a design method that the video streaming system of MPEG format in...
When a live streaming video is delivered over a peer-to-peer (P2P) network, the chunk delay is always a problem of great concern. A serious chunk delay can produce obvious discontinuity of the streaming video, resulting in low satisfaction of the service. Video on P2P is divided into several chunks and distributed to the peers. Each chunk has its own playback time deadline. The playback time of a...
With the wide acceptance and development of the Internet, it is trend to integrate all of services into Internet. At the same time, the fast development of communication technology that is evolution from narrowband dial-up networks to current broadband networks, from fixed PSTN phone to mobile phone and from wired network to wireless network. In the visible future, the communication will be converged...
The problem of providing an efficient and low-cost video streaming service over wireless access networks is considered in this work. The usage of multicast content delivery combined with popularity-based video caching, enables to provide video-on-demand services over wireless networks. In order to tackle the "last mile" bottleneck for video delivery to the home, we propose a content-aware...
Video surveillance becomes more and more popular as it is a high-tech method to protect personal safety and public property. Recently it is not the privilege of police and common people can view videos of many public places lively or by on-demand way. Traditional client-server based video streaming solutions incur expensive bandwidth provision cost on the server and are not scale well. Peer-to-Peer...
In recent years, Peer-to-Peer (P2P) streaming systems experienced tremendous growth and became one of the largest bandwidth consumer on Internet. PPLive, one of the most popular applications in this category, is serving millions of registered users with hundreds of Live TV channels and millions of other video clips. Compared to the standard file sharing systems, the streaming service shows unique...
Video streaming services using TCP as a transport layer protocol -- represented by YouTube -- are becoming increasingly popular and, accordingly, have come to account for a significant portion of Internet traffic. TCP is greedy, that is, it tries to exhaust the entire bandwidth. Thus, video streaming over TCP tends to unnecessarily take bandwidth from competing traffic. In this paper, we first investigate...
Low cost, high bandwidth Internet connectivity has made Video-on-Demand (VoD) one of the most significant new age technologies being adopted by ever-growing users. Video applications such as online video streaming, video conferencing and many others are being increasingly used. The increased in IP based video applications has resulted in more traffic over IP networks. Hence, there is a need for efficient...
In peer-to-peer video-on-demand (P2P VoD) streaming services, a video server load is reduced by peers who cache data of the viewed videos and send these data to other peers instead of the video server. Although FIFO is typically used as the caching algorithm, it is not efficient for using upload bandwidth of the peers because the peers can cache the data of unpopular videos and cannot be requested...
In this paper, the modules for the conceptual design of an innovative e-learning platform using satellite communications for teaching control systems theory courses are presented. All necessary tools and mechanisms are provided enabling real time text, and audio/video based communication between tutors and learners. The end-user driven services include: virtual classroom, offline operation, sharing...
Mobile TV services are being actively developed for a variety of last hop, broadband wireless technologies. Application layer error control mechanisms such as Broadband Video Streaming seek to reduce packet loss from raw UDP transport. This paper goes further than existing streaming protocols by integrating source-coded error resilience through data-partitioning and intra-refresh macroblocks with...
There are two main scalable methods for streaming live video over the Internet: Content Delivery Networks (CDNs) and Peer-to-Peer (P2P) networks. Though both have their own problems, P2P streaming systems challenge delivering video with constant quality and CDNs approaches require deployment of large number of servers throughout the Internet that is costly. Recently, using hybrid architectures based...
The intrinsic deficiencies of traditional client-server networks lead that P2P networks become scalable successors for video streaming in today networks. However, the performance of P2P networks is deeply dependable on the contribution of peers. In fact, some peers only consume services but provide little or nothing into the network; this phenomenon which is called free riding seriously affects the...
This paper presents a proposal of a new video provisioning scheme that enables numerous multiple users to access any view area with any desired resolution interactively. The basis is that the tile-based encoded multiple streams are joined dynamically and delivered based on the user's view-area position. This paper details a tile-based video coding scheme and a fast tile stream joiner scheme. Simulation...
This paper describes the design and implementation of a multimedia home gateway for three-screen TV service. The proposed in-home wireless network uses scalable video coding (SVC) and unequal error protection with Raptor forward error correction (FEC) for maximizing the quality of experience (QoE) over the variable-bandwidth, error-prone wireless network. The gateway incorporates (a) dynamic SVC layer-switching,...
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