Consolidating Streams to Improve DASH Cache Utilisation

Stephen McQuistin and Colin Perkins

Poster presented at the ACM CoNEXT Conference, Heidelberg, Germany, December 2015.

Existing HTTP caches interact poorly with multiple Dynamic Adaptive Streaming over HTTP (DASH) streams of the same content: time and quality differences prevent a complete representation from being cached, reducing hit-ratios. We propose to consolidate near-simultaneous streams based on time or quality, where the improved cache performance makes this worthwhile. We estimate that there is a sufficient number of near-simultaneous streams for our proposed techniques to improve cache hit-ratios.

Download: mcquistin2015consolidating.pdf