We study the content placement problem for cache delivery video-on-demand systems under static random network topologies with fixed heavy-tailed video demand. The performance measure is the amount of server load; we wish to minimize the total download rate for all users from the server and maximize the rate from caches. Our approach reduces the analysis for multiple videos to consideration of d...

In this paper, we will address the problem of designing an interactive video server employing multiprocessors. An interactive video server needs to provide quick response to user’s requests. When the video stream is a sequence of short video clips and if the order in which these clips are played out is determined by the user, the video clips need to be started up fairly quickly to give an impre...

In the next generation network (NGN) environment specific consideration is on bandwidth minimization, because this reduces the cost of network. In response to the growing market demand for multimedia traffic transmission, NGN concept has been produced. The next generation network provides multimedia services over high speed networks, which supports DVD quality video on demand. Although it has n...

A video server guarantees the I/O bandwidth required for the smooth playback of a video access request once it has been admitted into the system. To ensure that new video access requests will not jeopardize the bandwidth guarantees promised to existing streams, an admission control module that decides whether a new request should be granted based on the resource usage is essential in the design...

Various types of information are available on the Internet via the WWW, FTP servers, and so on. But most data are downloaded in “batch mode,” which is not suitable for large-volume multimedia data such as video because it does not allow instant playback. This paper proposes a new video-transfer scheme, named “VideoProxy,” for very low-latency playback of Internet video data. A VideoProxy server...

Real-time distribution of stored video over wide-area networks is a crucial component of many emerging distributed multimedia applications. The heterogeneity in the underlying network environments is an important factor that must be taken into consideration when designing an end-to-end video delivery system. In this paper, we present a novel network-conscious approach to the problem of end-to-e...

We propose a peer-to-peer (P2P) streaming system that multicasts live video as well as provides the live video as Video-on-Demand (VoD) during the live session. The proposed system allows users to individually pause and resume a live video stream, and to view video that was streamed before the particular user joined the session. Since live video content naturally results in many users watching ...

| Real-time distribution of stored video over wide-area networks is a crucial component of many emerging distributed multimedia applications. The heterogeneity in the underlying network environments is an important factor that must be taken into consideration when designing an end-to-end video delivery system. In this paper, we present a novel approach to the problem of end-to-end video deliver...

Mirroring-based reliability as compared to parity-based reliability signi cantly simpli es the design and the implementation of video servers, since in case of failure mirroring does not require any synchronization of reads or decoding to reconstruct the lost video data. While mirroring doubles the amount of storage volume required, the steep decrease of the cost of magnetic disk storage makes ...

Multimedia streaming applications consume significant amounts of server and network resources due to the high bandwidth requirements and long durations of audio and video clips. For popular videos, periodic broadcast techniques exploit the client’s buffer space and network reception bandwidth capabilities to reduce server and network transmission bandwidth requirements. In this paper, we system...