%0 Journal Article %@ 1089-7798 %A Cello, Marco %A Gnecco, Giorgio %A Marchese, Mario %A Sanguineti, Marcello %D 2012 %F eprints:1725 %I IEEE %J IEEE Communications Letters %K Intermittently connected networks, Markov chains, ad-hoc networks congestion control epidemic routing %N 6 %P 862-865 %T A Model of Buffer Occupancy for ICNs %U http://eprints.imtlucca.it/1725/ %V 16 %X 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.