ABSTRACT

This chapter presents the novel virtual price FAST transmission control protocols (TCPs) congestion control approach termed REM-FAST. It discusses a new algorithm termed as Generalized FAST TCP. The chapter provides a new FAST TCP flow-level model, leading to a new FAST TCP variant to deal with packet loss. Based on the REM pricing mechanism, this scheme still works under the framework of FAST TCP. In REM-FAST, the chapter suggests the link algorithm uses a virtual price method to develop the link price to avoid large backlog in the network. The chapter evaluates the aggregate link price be used in the source window updating as congestion indication. It examines the source algorithm adopts a modified FAST TCP window-updating mechanism, at which equilibrium flows satisfy (a, n)-proportional fairness. The chapter analyses the simulation results which confirms that in both single-bottleneck and multi-bottleneck link networks, good fairness is achieved and backlog is reduced.