Loss Differentiation Algorithms (LDA) are currently used to determine the cause of packet losses with an aim of improving TCP performance over wireless networks. In this work, we propose a cross-layer solution based on two LDA in order to classify the loss origin on an 802.11 link and then to react consequently. The first LDA scheme, acting at the MAC layer, allows differentiating losses due to...

The source of innovation is most often a matter of combining things in a new and unexpected way. To be able to do this, a cross-disciplinary understanding and ability to draw broader perspectives is underlined. This capability is underlined, as industries increasingly focus on developing end-to-end solutions. This also means that collaborative research projects will increasingly be such that th...

One of the major problems in networked multimedia is the playout synchronization of continuous media streams. The sink of a set of transmitted media streams has to reestablish the presentation timing of samples within each stream (intra-stream synchronization) and among streams (inter-stream synchronization). In applications that include live human-to-human conversation there is the additional ...

Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract The end-to-end principle is the core architectural guideline of the Internet. In this document, we briefly examine the development of the end-to-end principle as it has been applied to the Internet architecture over...

Within the North American freight railroad industry, there is currently an effort to enable more intelligent telemetry for freight trains. By enabling greater visibility of their rolling stock, including locomotives and railroad cars, railroad companies hope to improve their asset utilization, operational safety, and business profitability. Different communication and sensing technologies are b...

background: cirrhinus mrigala, one of the important fish widely consumed in india, was used for karyological observations and to evaluate the toxic effect of butachlor, an extensively used herbicide in rice fields in terms of chromosomal aberration test. methods: fishes were collected from “national fish seed farm” jyotisar with mean body weight of 20-50g. the experimental fishes were kept in t...

An interdisciplinary team of scientists is collaborating to enhance the understanding of the uncertainty in the ocean environment, including the sea bottom, and characterize its impact on tactical system performance. To accomplish these goals quantitatively an end-to-end system approach is necessary. The conceptual basis of this approach and the framework of the end-to-end system, including its...

The overall goals of this research are: 1. To define and characterize the variabilities and uncertainties in the components and linkages of the general physical-geo-acoustical system relevant to the support of naval operations. 2. To transfer quantitatively the spatial-temporal environmental variabilities and uncertainties through the interdisciplinary system, including coupled interactions, in...