On the Connection-Level Stability of Congestion-Controlled Communication Networks

Date Added: Jan 2011
Format: PDF

The authors are interested in the connection-level stability of a network employing congestion control. In particular, they study how the stability region of the network (i.e., the set of offered loads for which the number of active users in the network remains finite) is affected by congestion control. Previous works in the literature typically adopt a time-scale separation assumption, which assumes that, whenever the number of users in the system changes, the data rates of the users are adjusted instantaneously to the optimal and fair rate allocation. Under this assumption, it has been shown that such rate assignment policies can achieve the largest possible stability region.