Equilibrium bandwidth and buffer allocations for elastic traffics

摘要: Consider a set of users sharing network node under an allocation scheme that provides each user with fixed minimum and random extra amount bandwidth buffer. Allocations prices are adjusted to adapt resource availability demands. Equilibrium is achieved when all optimize their utility demand equals supply for nonfree resources. We analyze two models behavior. show at equilibrium expected return on purchasing variable resources can be higher than Thus must balance the marginal increase in due decrease variability. For first model we further where such tradeoff optimized hold strictly positive amounts second if both buffer scarce then every either holds or none.