YouTube relies on a massively distributed Content Delivery Network (CDN) to stream the billions of videos in its catalogue. Unfortunately, very little information about the design of such CDN is available. This, combined with the pervasiveness of YouTube, poses a big challenge for Internet Service Providers (ISPs), which are compelled to optimize end-users’ Quality of Experience (QoE) while hav...

We present the design and implementation of a Content-Delivery-Network-as-a-Service (CDNaaS) architecture, which allows a telecom operator to open up its cloud infrastructure for content providers to deploy virtual CDN instances on demand, at regions where the operator has presence. Using northbound REST APIs, content providers can express performance requirements and demand specifications, whi...

CDN (Content Delivery Networks) improves end-user performance by replicating web contents on a group of geographically distributed servers. However, repeatedly keeping the entire replica of the original objects into many content servers consumes too much server resource. This problem becomes more serious for the large-sized objects such as streaming media, e.g. high quality video. In this paper...

In order to improve end users' Web access experiences, today's Internet content providers generally employ Content Delivery Networks (CDNs) provide material users. To comprehend reasons, methods, and amounts of CP-level intelligences may aid distribution, we a measurement-based approach. The largest provider in China, Tencent, constructed CDN, which first offer as measurement study. Contrarily,...

With the increase number of wireless communication environment, content distribution and streaming are became very ease. The Live video streaming over wireless network is very popular nowadays. Due to the popularity of streaming delivery of data contents over wireless networks, the development of live video streaming also has attracted much attention. This technology boosts the distribution of ...

We discuss the design methodology used to achieve commercial-quality reliability in the Akamai content delivery network. The network consists of 15,000+ servers in 1,100+ networks and spans 65+ countries. Despite the scale of the Akamai CDN and the unpredictable nature of the underlying Internet, we seek to build a system of extremely high reliability. We present some simple principles we use t...

YouTube relies on a massively distributed Content Delivery Network (CDN) to stream the billions of videos in its catalogue. Unfortunately, very little information about the design of such CDN is available. This, combined with the pervasiveness of YouTube, poses a big challenge for Internet Service Providers (ISPs), which are compelled to optimize end-users’ Quality of Experience (QoE) while hav...

A conventional Content Distribution Network (CDN) has a static structure, therefore, it is not an effective solution to a flash crowd, that is a rapid increase in server load caused by a sudden access concentration. We have proposed an adaptive CDN, FCAN (Flash Crowds Alleviation Network), which changes its structure dynamically against flash crowds. In this paper, we verify FCAN on a real worl...

Content Distribution Networks (CDN) are fundamental, yet expensive technologies for distributing the content of web-servers to large audiences. The P2P model is a perfect match to build a low-cost and scalable CDN infrastructure for popular websites by exploiting the underutilized resources of their user communities. However, building a P2P-based CDN is not a straightforward endeavor. In contra...

1. Introduction CDN (Content Delivery Networks) improves end-user performance by replicating web contents on a group of geographically distributed servers. However, current replica strategies in CDN are to simply and repeatedly keep the complete replica of the original object on many content servers. Disadvantages of this method are as follows: to repeatedly store the same large-sized object in...