The ABR service category of ATM architecture is a best effort service which aims to provide rapid access to unused network bandwidth at up to the link rate whenever the network bandwidth is available. As a result, the transfer characteristics provided by the network may change subsequent to connection establishment, and a congestion control mechanism is required. The ATM Forum has specified a c...

A feedback-based congestion control mechanism is essential to realize an efficient best-effort service in highspeed networks. A window-based flow control mechanism called TCP (Transmission Control Protocol), a sort of feedbackbased congestion control mechanism, has been widely used in the current Internet. Recently-proposed TCP Vegas is another version of TCP mechanism, and achieves much better...

The priority control for specified communication was difficult because the design concept of the Internet was best effort, but QoS technology such as Diffserv has realized the priority control. In this paper, we propose a new priority control mechanism. that the policy of the behavior of the packets is described using metadata. The metadata is structured data about data and is able to describe ...

In this paper we consider TCP based applications that use bandwidth guarantees, but can also benefit from any additional best-effort service offered by the network. We show that default TCP cannot offer such applications the aggregate throughput offered by the two services. We propose an adaptation of TCP called GTCP that uses changes to TCP’s congestion control mechanisms to provide the optima...

Poor performance in goal-oriented sensory motor tasks is a common symptom among depressed individuals. However, it is unclear what the underlying causes of these deficits are. Elucidating the underlying mechanisms is an important first step to develop more targeted behavioral interventions. Here, using simple motor-control tasks, we propose an inverse optimal control approach to analyze and fac...