-In mobile ADHOC networks have limited bandwidth and are more prone to error than wired networks which further impose limits on the amount of data that can be sent. In order to conserve the limited resources, it is highly desirable that transmission should be as efficient as possible with minimal loss. The objective of congestion control is to limit the delay and buffer overflow caused by netwo...

In recent years a considerable amount of research [1-14] has been undertaken in the area of congestion control and avoidance of available bit rate(ABR) service. Both the International Telecommunication Union (ITU) and the ATM Forum have accepted the rate based feedback scheme as the framework for ABR traffic control [1, 6, 8 & 15]. In the ABR traffic management scenario, each source attempts to...

This document contains the profile for Congestion Control Identifier 2 (CCID 2), TCP-like Congestion Control, in the Datagram Congestion Control Protocol (DCCP). CCID 2 should be used by senders who would like to take advantage of the available bandwidth in an environment with rapidly changing conditions, and who are able to adapt to the abrupt changes in the congestion window typical of TCP’s ...

he first generation of telecommunication networks were circuit-switched. In such networks, each circuit is allocated resources along a path for its exclusive use; there is no uncertainty about the bandwidth or delays along the path. Packet switching introduced a very different mode of communication. In most packet-switched networks,l sources send their data packets into the network without any ...

Here in this paper A MAC layer level congestion detection mechanism has been proposed. The proposed model aims to deliver an energy efficient mechanism to quantify the degree of congestion at victim node with maximal accuracy. This congestion detection mechanism is integrated with a Two-Step Cross Layer Congestion Control Routing Protocol. The proposed model involves controlling of congestion i...

TCP Westwood (TCPW) is a recently proposed sender side modification of TCP congestion control. TCPW relies on bandwidth share estimation techniques to enhance congestion control over high speed and/or wireless networks. The bandwidth share estimation methods turn out to be critical to guarantee both throughput improvement and friendliness towards widely used TCP protocols such as NewReno. In th...

Abstracrt Asynchronous Transfer Mode (ATM) has emerged as most promising technology in supporting broadband multimedia communications. Congestion control plays important role in the effective and stable operation of ATM networks. In this paper, we described several existing rate based congestion control schemes namely, Explicit Forward Congestion Indication (EFCI), Enhanced Proportional Rate Co...

The paper evaluates the statistical properties of two different matching estimators in the case of continuous treatment, using a Montecarlo experiment. The traditional generalized propensity score matching estimator is compared whit a new two steps matching estimator for the continuous treatment case, recently developed [1]. It compares treatment and control units similar in terms of their obse...

The popularity of matching techniques has increased considerably during the last decades. They are mainly used for matching treatment and control units in order to estimate causal treatment effects from observational studies or for integrating two or more data sets that share a common subset of covariates. In focusing on causal inference with observational studies, we discuss multivariate match...