A New Approach to Manage QoS in Distributed Multimedia Systems

TL;DR

This paper introduces a scalable (m,k)-frame method for managing QoS in distributed multimedia systems by selectively discarding frames based on network congestion, adapting to system load and client dynamics.

Contribution

The paper presents a novel (m,k)-frame technique that improves QoS management scalability in multimedia systems by controlling frame discarding based on real-time network conditions.

Findings

(m,k)-frame method effectively adapts QoS to network load.

Simulation results show minimal performance degradation.

Method handles dynamic client arrivals efficiently.

Abstract

Dealing with network congestion is a criterion used to enhance quality of service (QoS) in distributed multimedia systems. The existing solutions for the problem of network congestion ignore scalability considerations because they maintain a separate classification for each video stream. In this paper, we propose a new method allowing to control QoS provided to clients according to the network congestion, by discarding some frames when needed. The technique proposed, called (m,k)-frame, is scalable with little degradation in application performances. (m,k)-frame method is issued from the notion of (m,k)-firm realtime constraints which means that among k invocations of a task, m invocations must meet their deadline. Our simulation studies show the usefulness of (m,k)-frame method to adapt the QoS to the real conditions in a multimedia application, according to the current system load. Notably, the system must adjust the QoS provided to active clients1 when their number varies, i.e. dynamic arrival of clients.