Chapter

Performance Evaluation of Computer and Communication Systems. Milestones and Future Challenges

Volume 6821 of the series Lecture Notes in Computer Science pp 73-86

Modeling Wireless Sensor Networks Using Finite-Source Retrial Queues with Unreliable Orbit

  • Patrick WüchnerAffiliated withFaculty of Informatics and Mathematics, University of Passau
  • , János SztrikAffiliated withFaculty of Informatics, University of Debrecen
  • , Hermann de MeerAffiliated withFaculty of Informatics and Mathematics, University of Passau

Abstract

Motivated by the need for performance models suitable for modeling and evaluation of wireless sensor networks, we introduce a retrial queueing system with a finite number of homogeneous sources, unreliable servers, orbital search, and unreliable orbit. All random variables involved in model construction are assumed to be independent and exponentially distributed. Providing a generalized stochastic Petri net model of the system, steady-state analysis of the underlying continuous-time Markov chain is performed and steady-state performance measures are computed by the help of the MOSEL-2 tool. The main novelty of this investigation is the introduction of an unreliable orbit and its application to wireless sensor networks. Numerical examples are derived to show the influence of sleep/awake time ratio, message dropping, and message blocking on the senor nodes’ performance.

Keywords

performance evaluation unreliable finite-source retrial queue wireless sensor network energy efficiency self-organization