PETRI NET PERFORMANCE AND RELIABILITY MODELS FOR WIRELESS NETWORKS
Ahmed Samir Koriem, Ibrahim F. Tarrad, Hassan Farahat · International journal of intelligent computing and information sciences/International Journal of Intelligent Computing and Information Sciences · 2014
Since the dynamic behavior of wireless networks inherits different communication patternsfor the execution processes of the desired parallel tasks and the occurrence processes of handoffoperations, the available reliability metrics are not applicable to study and analyze such networks.Therefore, in this paper, we propose a novel Petri net modeling methodology for accurately calculatingthe reliability of wireless networks that incorporate theses aspects, such as wireless CORBA network.The proposed reliability methodology is developed based on using the End-to-End ExpectedInstantaneous Reliability (EIR) measure. The EIR has the capability to measure the reliability ofwireless networks that incorporate the handoff processes as well as the service processes. In theproposed technique, we firstly build Generalized Stochastic Petri Net (GSPN) performance model fordescribing the different communication pattern that can occur among the various network resourcesunder the execution of parallel tasks. Secondly, we build GSPN performance model for describing thehandoff communication processes among the various network resources. Finally, we build genericreliability model consists of the following parts: the first part describes the execution of the desiredparallel tasks, the second part illustrates the mobility characteristic introduced by handoff processes,and the third part describes the dynamic behavior of failure processes of network resources. We studyand analyze the various reliability results as well as the performance results obtained from thedeveloped GSPN models under the effect of communication distance among the CORBA networkresources.