TY - JOUR VL - 15 Y1 - 2011/// JF - IEEE Communications Letters IS - 4 PB - IEEE A1 - Cello, Marco A1 - Gnecco, Giorgio A1 - Marchese, Mario A1 - Sanguineti, Marcello SP - 467 ID - eprints1718 EP - 469 KW - Call admission control KW - coordinate convex policies KW - feasibility region AV - none TI - CAC with Nonlinearly-Constrained Feasibility Regions UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5734793&isnumber=5749432 SN - 1089-7798 N2 - Two criteria are proposed to characterize and improve suboptimal coordinate-convex (c.c.) policies in Call Admission Control (CAC) problems with nonlinearly-constrained feasibility regions. Then, a structural property of the optimal c.c. policies is derived. This is expressed in terms of constraints on the relative positions of successive corner points. ER -