Prioritization-based bandwidth allocation for MOST networks

Abstract

The Media Oriented Systems Transport (MOST) network, the current de-facto standard for in-vehicle multimedia and infotainment, does not provide support for the stream priority and serves bandwidth allocation requests based on their arrival order, irrespective of the stream importance. This work proposes a novel bandwidth allocation approach for multimedia streams on MOST150 networks that introduces the stream priority, which is used to reserve bandwidth for each stream according to its importance. The approach also exploits the ability for dynamically changing the bandwidth needs of multimedia streams through variable bitrate compression and is useful in MOST 150 networks supporting, together with multimedia streams, also bandwidth-greedy applications, such as Advanced Driver Assistance Systems.