relation: http://eprints.imtlucca.it/1684/ title: Structural properties of optimal coordinate-convex policies for CAC with nonlinearly-constrained feasibility regions creator: Marchese, Mario creator: Cello, Marco creator: Gnecco, Giorgio creator: Sanguineti, Marcello subject: QA75 Electronic computers. Computer science description: Necessary optimality conditions for Call Admission Control (CAC) problems with nonlinearly-constrained feasibility regions and two classes of users are derived. The policies are restricted to the class of coordinate-convex policies. Two kinds of structural properties of the optimal policies and their robustness with respect to changes of the feasibility region are investigated: 1) general properties not depending on the revenue ratio associated with the two classes of users and 2) more specific properties depending on such a ratio. The results allow one to narrow the search for the optimal policies to a suitable subset of the set of coordinate-convex policies. publisher: IEEE date: 2011 type: Book Section type: PeerReviewed format: application/pdf language: en identifier: http://eprints.imtlucca.it/1684/1/IEEE-INFOCOM_11_Gnecco.pdf identifier: Marchese, Mario and Cello, Marco and Gnecco, Giorgio and Sanguineti, Marcello Structural properties of optimal coordinate-convex policies for CAC with nonlinearly-constrained feasibility regions. In: Proceedings IEEE of INFOCOM 2011. IEEE, pp. 466-470. ISBN 978-1-4244-9919-9 (2011) relation: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5935205&isnumber=5934870 relation: 10.1109/INFCOM.2011.5935205