On-demand scheduling for concurrent multipath transfer using the stream control transmission protocol

摘要

Disparate path characteristics and a constrained receive buffer can frustrate the promised performance gains of concurrent multipath transfer (CMT). Known as the receive buffer blocking problem, out-of-order arrivals disrupt the sender's ability to transmit new packets while buffering delays ensue at the multihomed receiver. To mitigate this effect, earlier work used scheduling algorithms that assigned new packets to the receiver's destination address with the lowest delay. Unfortunately, this approach is not always successful; and in some cases, even a simpler method will achieve better results.