we are introduced the cooperative caching in wireless networks ,where the nodes may be mobile and exchange information in apeer-to-peer fashion. We consider both cases of nodes with large-and small-sized caches. For large-sized caches, we devise a strategy where nodes, independent of each other, decide whether to cache some content and for how long. In the case of small-sized caches, we aim to ...

1. Abstract. High speed cache memory is commonly used to address the disparity between the speed of a computer's central processing unit and the speed of a computer's main memory. It is advantageous to maximize the amount of time that data spends in cache. Tiling is a software technique which is often used to do just this. Tiling is not able, however, to handle dynamically changing data structu...

The increasing popularity of network-based multimedia applications poses many challenges for content providers to supply efficient and scalable services. Peer-to-peer (P2P) systems have been shown to be a promising approach to provide large-scale video services over the Internet since, by nature, these systems show high scalability and robustness. In this paper, we propose and analyze an object...

Owing to its advantages of cheaply solving the server-side bottleneck, peer-to-peer (P2P) networking is gaining attention in recent years. At the same time, Video-On-Demand (VOD) is becoming much more popular on the Internet, such as online theatres and news websites. However, VOD consumes large bandwidth and traditional solutions can only serve very limited number of concurrent demands. P2P be...

This paper presents an optimized mapping of pixels into the external SDRAM for H.264/AVC video decoding. The modern SDRAM system usually employs the burst-access mode as well as the multi-bank architecture to improve the utility efficiency. If the accessed video pixels can be placed uniformly and successively across different memory banks, both of them will be used with high efficiency. Based o...

In this paper, we study how to distribute cache sizes into a tree structured server for transmitting video streams through video– on–demand (VoD) way. We use off-line smoothing for videos and our request rates are distributed according to a 24 hour audience curve. For this purpose we have designed a slotted-time bandwidth reservation algorithm, which has been used to simulate our experiments. O...

We focus on the problem of enabling video-on-demand services on the Internet. We propose a cost-effective solution called Caching Agent, an overlay architecture consisting of caching servers placed across the Internet. Unlike conventional proxies, these caching servers act as application-layer routers and cleverly cache data passing by. When a client’s request encounters a cache miss at the loc...

The Scalable Coherent Interface (SCI) is an IEEE standard that defines a hardware platform for scalable shared-memory multiprocessors. SCI consists of three parts. The first is a set of physical interfaces that defines board sizes, wiring and network clock rates. The second is a communication protocol based on unidirectional point to point links. The third defines a cache coherence protocol bas...