Caching and Mobility Support in a Publish-Subscribe Internet Architecture

The Internet is straining to meet demands that its design had never anticipated, such as supporting billions of mobile devices and transporting huge amounts of multimedia content. The Publish-Subscribe Internet (PSI) architecture, a clean slate Information Centric Networking approach for the Future Internet, was designed to satisfy the current and emerging user demands for pervasive content delivery that the Internet can no longer handle. This paper provides an overview of the PSI architecture, explaining its operation from bootstrapping to information delivery, focusing on its support for network layer caching and seamless mobility, which make PSI an excellent platform for ubiquitous information delivery.