Mark Baugher

Watching Video over the Web: Part 1: Streaming Protocols

The average US consumer watches TV for almost five hours a day. While the majority of viewed content is still broadcast TV programming, the share of the time-shifted content is on the rise. One-third of US viewers currently use a digital video recorder like device, but trends indicate that more consumers are migrating to the Web to watch their favorite shows and movies. Increasingly, the Web is coming to digital TV, which incorporates movie downloads and streaming via Web protocols. In this first part of a two-part article, the authors describe both conventional and emerging streaming solutions using Web and non-Web protocols.

Self-verifying names for read-only named data

Information-centric networks must ensure the authenticity and integrity of named data. ICN designs such as Content-Centric Networking apply a digital signature to a collection of packets for this purpose. This paper shifts the mode of ICN authentication: Self-verifying names ensure data authenticity for read-only named data; signatures or other means ensure name authenticity. The paper considers how self-verifying names might be used in CCN.

Watching Video over the Web: Part 2: Applications, Standardization, and Open Issues

Many video streaming applications and services exist on the Internet, and we covered several of them in part 1 of this article.1 The most important applications argu ably fall into the mobile and home entertainment categories, which span the range of video presentation formats for portable (PD), standard (SD), and high-definition (HD) video, and these applications include both walled-garden and Internet applications. They also operate on diverse networks, and use both managed and unmanaged end-to-end network services. Here, we identify mobile and home-streaming use cases, and consider the suitability of pull-based versus push-based adaptive streaming for each use case.