Modeling and Evaluation of Web Services in Mobile Networks using Stochastic Colored Petri Nets

Subject Areas : B. Computer Systems Organization

Homayun  Motameni ¹ (Department of Computer Engineering, Islamic Azad University, Sari Branch, sari, Iran)
Mohammad  Vahidpour ² (Department of Computer Engineering, University of Science and Technology of Mazandaran, Babol, Iran)
Babak  Shirazi ³ (Department of Computer Engineering, University of Science and Technology of Mazandaran, Babol, Iran)
Behnam  Barzegar ⁴ (Department of Computer Engineering, Islamic Azad University, nowshahr Branch, nowshahr, Iran)

Received: 2013-12-01 Accepted : 2013-12-01 Published : 2013-11-01

Keywords: Evaluation, Mobile Environment, Petri Nets, Markov Chain,

Abstract :

With recent developments in communication technologies, it is possible to access information any time and in any place; however, mobile environments bring forward certain requirements and exclusive challenges including low connection speeds and bandwidth limitations. Thus, we need to consider mobile limitations when using web services. Providing services and limited resource allocation to users and at the same time maintaining performance and quality is a challenging and somewhat difficult task. In this paper, an architecture is introduced and described for showing the mobile agent request process in mobile environments. A mathematical model is introduced for performance analysis; however, the main challenge is the state space explosion in Markov Chain, which complicates the relations. Hence, a model has been suggested using Stochastic Colored Petri Nets that encompasses two sections. A case study performed on mobile networks and the results of implementation are compared with the proposed method. Therefore, by using the proposed method, it is easy to analyze the effect of network limitations and connection methods on performance.