TCP’s congestion window controls the number of packets a TCP flow may have in the network at any time. However, long periods when the sender is idle or application-limited can lead to the invalidation of the congestion window, in that the congestion window no longer reflects current information about the state of the network. In this paper we propose a simple modification to TCP’s congestion co...

As traffic patterns and network topologies become more and more complicated in current enterprise data centers and TOP500 supercomputers, the probability of network congestion increases. If no countermeasures are taken, network congestion causes long communication delays and degrades network performance. A congestion control mechanism is often provided to reduce the consequences of congestion. ...

This paper presents a history of congestion control research and an analysis of a specific rate-based congestion control protocol, TCP-friendly rate control (TFRC). Two taxonomies of congestion control mechanisms are presented, and later used to classify general end-to-end congestion control schemes including window-based and rate-based methods. The classic TCP congestion control mechanisms are...

Last decade has witnessed wide growth of Mobile ad-hoc networks (MANETs). Mobile ad-hoc network is self-configurable and adaptive. MANETs use wireless connections to connect various networks. There are number of issues and challenges in a mobile ad hoc network. Due to many number of nodes transmitting packets over the network, the chances of losing the packets over the network increases to a gr...