TY - JOUR UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6189815&isnumber=6214955 VL - 16 A1 - Cello, Marco A1 - Gnecco, Giorgio A1 - Marchese, Mario A1 - Sanguineti, Marcello SP - 862 JF - IEEE Communications Letters KW - Intermittently connected networks KW - Markov chains KW - ad-hoc networks congestion control epidemic routing ID - eprints1725 Y1 - 2012/// AV - none IS - 6 PB - IEEE TI - A Model of Buffer Occupancy for ICNs SN - 1089-7798 N2 - In this letter, an analytical framework to model nodes in Intermittently Connected Networks (ICNs) is proposed. A relationship is derived in the z-domain between the discrete probability densities of their buffer state occupancies and the sizes of the arriving bulks. Under a fixed epidemic-routing-based forwarding strategy, expressions are obtained for the average buffer occupancy and its standard deviation with immediate protocol advantages. EP - 865 ER -