Modeling the Throughput of CMT-SCTP

Abstract

Based on the multi-streaming and multi-homing features of SCTP, the researchers proposed Concurrent Multipath Transfer (CMT). In order to aggregate bandwidth and improve the transmission throughput of end-to-end network, many new paradigms, such as Information Centric Network (ICN), are created. These new network architectures contain massive redundant paths, which provide more opportunities for CMT enhancement. However, most previous analytic models of throughput only focus on single path. Although some scenarios take into account multiple paths, the performance parameters of the paths are supposed to be the same, which is hard to achieve in practical circumstance. In this paper, we develop a simple analytic mechanism for CMT-SCTP throughput. Sending rate is selected as a function of loss rate, bandwidth and Round-Trip Time (RTT). Different with previous models, our mechanism considers different performance parameters for multiple paths. The simulation results show that our model is able to predict CMT-SCTP sending rate accurately under various network conditions.