A Network QoS Framework for Real-time Event Systems in highly Mobile Ad-hoc Environments

Abstract

A new class of applications can now be envisaged with the emergence of both mobile ad hoc computing andubiquitous computing, which imposes a number of new unsolved challenges. Examples of such applications includeautomatic car control systems and air traffic control systems. Applications of such kind have real-time constraints andare characterised by being highly mobile and proactive, i.e. able to operate without human intervention. Moreover, thiskind of applications requires multiple-source multicasting. However, current approaches mainly focus on offeringsupport for continuous flows in low mobile environments where single-source multicasting is assumed. In this paper,we present the QoSMMANET (QoS Management in Mobile Ad hoc Networks) framework, which offers QoS supportfor real-time event systems in highly mobile ad hoc environments. Our approach is validated by a number ofexperiments carried out in the ns-2 network simulator.