A MAC Centric Cross Layer Approach for H.264 Video Streaming over HSDPA

Abstract

This paper proposes a MAC centric cross-layer approach for H.264 video streaming over HSDPA wireless links. Our solution is based on minimal interactions between the RLC (Radio Link Control layer) and the application layer (i.e. H.264 encoder) in order to give video packets different importance values according to the semantic of their contents. The performance of our proposed solution is evaluated through NS-2/EURANE simulations. The results show the gains achieved by our solution in terms of perceived video quality.