We present in this article a multimedia content replica management system, able to satisfy users' constraints and preferences, while limiting the load of the servers and the proxy-caches. Our goal is to optimize the placement of a limited number of replicas via mechanisms of duplication and migration. Our system allows owners to keep control over their multimedia contents even with large scale ...

The replica strategy in distributed cache can effectively reduce user access delay and improve system performance. However, developing a replica strategy suitable for varied application scenarios is still quite challenging, owing to differences in user access behavior and preferences. In this paper, a replication strategy for spatiotemporal data (RSSD) based on a distributed caching system is p...

Peer-to-Peer networks have gained a lot of popularity in the past few years. Each participant offers own resources and occupies resources of other peers. This paper proposes an architecture for a P2P streaming network that considers structured data placement strategies of replicated multimedia content and QoS routing (RSVP). We consider point to point streaming within an autonomous system. So c...

Many service providers distribute various kinds of content over the internet. Content Distribution Networks (CDNs) use replication of either entire website or most used objects to bring content close to the users and improve communication delay. In order to deliver web contents, CDNs should decide where to place replica servers and how many replicas are needed. In this paper, a linear programmi...

This paper shows a novel cache architecture, called SCache, to detect and prevent buffer-overflow attacks at run time. A number of malicious codes exploit buffer-overflow vulnerability to alter a return-address value and hijack the program-execution control. In order to solve the security issue, SCache generates replica cache lines on each return-address store, and compares the original value l...

The large scale content distribution systems were improved broadly using the replication techniques. The demanded contents can be brought closer to the clients by multiplying the source of information geographically, which in turn reduce both the access latency and the network traffic. The system scalability can be improved by distributing the load across multiple servers which is proposed by r...