Technology
Mobile CDNs should integrate mobile delivery services that optimize the delivery of any kind of content including live video streaming, on demand video and the delivery of other content assets. In the case of video content, these services include device detection, image rendering, video transcoding and bit-rate adaptation. For the optimization of the delivery of other content, mobile CDNs use technologies such as caching.
With currently available mobile CDN solutions, nodes are deployed at the edge of the network and in multiple locations, often over multiple backbones directly connected or peered with Mobile Network Operators (MNOs). These nodes cooperate with each other to satisfy requests for content by end users, transparently moving content to optimize the delivery process. The benefits of optimization can take the form of reduced bandwidth usage, improved end-user performance, or increased global availability of content over a mobile network.
Industry experts speculate whether mobile CDNs will take off due to technical and market issues. CDNs are important for mobile operators as they can lead to significant savings and avoid network congestion. However, a number of network-centric alternatives have been proposed including fast dormancy, increasing bandwidth capacity with upgrades to 4G/LTE, and offloading traffic to other networks such as Wi-Fi.
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