Bowman, H. and Faconti, G. and Katoen, J-P. and Latella, D. and Massink, M. (1998) Automatic Verification of a Lip Synchronisation Protocol using UPPAAL. Formal Aspects of Computing, 10 (5-6). pp. 550-575. ISSN 1433-299X .
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We present the formal specification and verification of a lip synchronisation algorithm using the real-time model checker UPPAAL. A number of specifications of this algorithm can be found in the literature, but this is the first automatic verification. We take a published specification of the algorithm, code it up in the UPPAAL timed automata notation and then verify whether the algorithm satisfies the key properties of jitter and skew. The verification reveals some flaws in the algorithm. In particular, it shows that for certain sound and video streams the algorithm can timelock before reaching a prescribed error state.
|Additional information:||Special Issue on Formal Methods for Industrial Critical Systems.|
|Uncontrolled keywords:||multimedia, model checking, lip-synchronisation, timed automata|
|Subjects:||Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Computing > Theoretical Computing Group
Faculties > Science Technology and Medical Studies > School of Computing > Systems Architecture Group
|Depositing User:||Mark Wheadon|
|Date Deposited:||22 Aug 2009 22:39|
|Last Modified:||24 Jul 2012 14:47|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/21620 (The current URI for this page, for reference purposes)|
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