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In autonomic networks, the self-configuration of network entities is one of the most desirable properties. In this paper, we show how formal verification techniques can verify the correctness of self-configuration. As a case study, we describe the configuration of physical cell identifiers (PCIs), a radio configuration parameter in cellular base stations. We provide formal models of PCI assignment algorithms and their desired properties. We then demonstrate how the potential for conflicting PCI assignments can be detected using model checking and resolved in the design stage. Through this case study, we argue that both simulation and verification should be adopted and highlight the potential of runtime verification approaches in this space.
Date of Conference: March 29 2010-April 2 2010