Abstract
Despite efforts to increase access to broadband Internet services
nationally and globally, a large number of households remains connected
using lower bandwidth connections. At the same time, however, a connected
household’s demands for data services (including the typical triple-play
services) increases continuously. One of the main drivers in the
triple-play service domain is Video-on-Demand (VoD). VoD services
today mix realtime streaming (or watching) of content with pre-selection
and personal library-building for later consumption. In this contribution,
we evaluate the extensive caching of video sequences that were pre-ordered
(e.g., added to a personal library with a VoD service provider) under
the constraints of low-bandwidth links commonly encountered in rural
communities. We find that by combining extensive client-side caching,
video coding patterns, and stream-level smoothing at the time of
media consumption, our approach enables the delivery of full HD resolution
content to connections under 1 Mbps given enough time for pre-caching.
Additionally, utilizing the inter-frame dependencies and coding properties
of H.264/AVC encodings, our approach disables broad decoding of content
from the client-side cache and hence preserves copyrights.
| Original language | English |
|---|---|
| Title of host publication | Proc. of the IEEE International Conference on Electro/Information Technology (EIT) |
| Pages | 1–4 |
| State | Published - May 2012 |