In this paper we analyse congestion in TCP over ATM-UBR, in particular the association between the congestion measures at the ATM physical and TCP transport layers. In addition to the commonly used metrics, cell loss ratio (CLR) and packet retransmission ratio (PRR) two new indicators, protocol level congestion association factor (PLCAF) and CLR-PRR correlation coe cient are used. CLR and PRR a...

We introduce a model of the Relentless Congestion Control proposed by Matt Mathis. Relentless Congestion Control (RCC) is a modification of the AIMD (Additive Increase Multiplicative Decrease) congestion control which consists in decreasing the TCP congestion window by the number of lost segments instead of halving it. Despite some on-going discussions at the ICCRG IRTF-group, this congestion c...

Patients with acute heart failure syndromes (AHFS) typically present with signs and symptoms of systemic and pulmonary congestion at admission. However, elevated left ventricular (LV) filling pressures (hemodynamic congestion) may be present days or weeks before systemic and pulmonary congestion develop, resulting in hospital admission. This "hemodynamic congestion," with or without clinical co...

The future of Internet transport is unreliable: fast-growing applications like streaming media and telephony prefer timeliness to reliability, and thus prefer UDP to TCP. Unfortunately, UDP lacks congestion control, so these applications are unsafe for use on underprovisioned best-effort networks unless they implement congestion control themselves—a difficult task. They might, however, happily ...

Congestion in a network or internet creates obvious problems for the end system: reduced availability and throughput and lengthened response times. When a packet is dropped before it reaches its destination, all of the resources it has consumed in transit are wasted. Improving the congestion control and queue management algorithms in the Internet has been one of the most active areas of researc...

This research assesses how U.S. transit agencies have taken advantage of congestion pricing projects and answers two questions: (1) what role has transit played in U.S. congestion pricing projects, and (2) how have transit agencies responded to congestion pricing projects through service planning, operating practices, capital investment, and institutional arrangements. First, transit is seen as...

We propose a robust end-to-end loss differentiation scheme to identify the packet losses due to congestion for TCP connections over wired/wireless networks. We use the measured RTT values in determining whether the cause of packet loss is due to congestion over wired path or regular bit errors over wireless paths. The classification should be as accurate as possible to achieve high throughput a...

This paper is based upon the concept of improving the novel congestion control scheme in Wireless Sensor Network. In WSN Congestion is an important issue. Congestion occurs at the transport layer of the OSI model. The Novel Congestion Control Scheme proposed a rate-based Fairness-Aware Congestion Control Protocol (FACC), which controls congestion and achieves approximately fair bandwidth alloca...

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As well as suffering from the same congestion causes as fixed networks wireless ad hoc-networks introduce several new congestion factors due to both the medium used and the mobility of the user. Unlike in fixed networks, which utilise predominately end-to-end transport layer solutions, congestion control in an ad-hoc network must be local, fast and adaptive. Congestion management attempts to pr...