CONTENT-AWARE BITRATE ADAPTATION FOR ROBUST MOBILE VIDEO SERVICES

Mobile video services are gaining popularity as the preferred means of communication in our daily lives due to its flexibility and portability. Wireless channel facilitates delivery and consumption of media content at "anytime" and "anywhere''. However, the current growth in wireless video services driven by users with insatiable perceived video quality stretches the limited resources beyond nominal limit and deteriorates further on severe congestion. Such scenarios present challenges which include how to efficiently share the constrained-bandwidth among competing media streams to meet the increasing insatiable video quality demand by viewers. This work investigates the effect of content characteristic on received video quality and proposes a scheme for media bitrates adaptation based on the content characteristic. The aim of the study is to devise a strategy for efficient distribution of the limited shared bandwidth resources among competing media streams for improved mobile video services within a fixed limited bandwidth network. Simulations have been carried out in order to evaluate the performance of the proposed scheme. The results obtained, demonstrate the capability and efficiency of the proposed scheme.