In this paper, we introduce a scalable Video-on-Demand (VoD) system called GloVE (Global Video Environment) in which active clients cooperate to create a shareable video cache that is used as the primary source of video content for subsequent client requests. In this way, GloVE server’s bandwidth does not limit the number of simultaneous clients that can playback a certain video since that as l...

Rarely do users watch online contents entirely. We study how to take this into account to improve the performance of cache systems for video-on-demand and video-sharing platforms in terms of traffic reduction on the core network. We exploit the notion of “Audience retention rate”, introduced by mainstream online content platforms and measuring the popularity of different parts of the same video...

This paper considers the multiaccess coded caching systems formulated by Hachem et al. , including a central server containing $N$ files connected to notation="LaTeX">$K$ cache-le...

Mobile Ad hoc Network provide an attractive solution for networking in the situations where network infrastructure or service subscription is not available. Its usage can further be extended by enabling communications with external networks such as Internet or cellular networks through gateways. However, data access applications in MANETs suffer from dynamic network connections and restricted e...

The proxy technique is originally developed for WWW system, but we expect it is useful to improve the performance and quality of video streaming applications. Especially, if each proxy is capable of adapting incoming or cached video data to user’s demand, user’s QoS requirements on video streams can be fully satisfied. On receiving a request from a user, the proxy first checks the cache. If a c...

The performance of streaming caches is not only affected by cache management but also determined by cache cooperation. If caches cooperate together, the desired video may be obtained from other caches thus reducing server load. However, such process increases network traffic between caches. It must be done carefully. This paper proposes a cooperative cache framework to automatically select appr...

In situations where establishing a network infrastructure is impossible, Ad-hoc networks are considered particularly important. Most of the previous research in Ad-hoc networks concentrated on the development and enhancement of dynamic routing protocols, which could efficiently discover routes between two communicating nodes. Although routing strategies is an important topic in MANETs, other to...

Multihop ad hoc wireless networks consist of mobile nodes that communicate with each other without any fixed infrastructure. The nodes in these networks are power constrained, since they operate in limited battery energy. Cooperative caching is an attractive solution for reducing network traffic and bandwidth demands in mobile ad hoc networks. Deploying caches in mobile nodes can reduce the ove...

SwitchKV is a new key-value store system design that combines high-performance cache nodes with resourceconstrained backend nodes to provide load balancing in the face of unpredictable workload skew. The cache nodes absorb the hottest queries so that no individual backend node is over-burdened. Compared with previous designs, SwitchKV exploits SDN techniques and deeply optimized switch hardware...