In this paper, we discuss the “free-riding”traffic problem in routing overlay networks, which is mainly caused by policy mis-match between the overlay routing and the underlay IP routing. We first define the free-riding problem in routing overlay network, and construct mathematical models for the amount of the free-riding traffic. We next present the numerical examples on the effectiveness of t...

In this paper we will analyze the relations between outbound email and inbound email traffic. We consider outbound traffic being sending email using the SMTP and inbound traffic being receiving or retrieving email using POP or IMAP. IMAP appears to be less used than POP. In corporate networks it is likely to have more SMTP than POP/IMAP traffic and in residential networks the situation is rever...

the current internet inherently has a degree of survivability due to the connection less ip protocol. dynamic routing protocols are designed to react to faults by changing routes when routers learn about topology changes via routing information updates (e.g., link status advertisements). loss of quality of service (qos) has not been an issue because current internet traffic is the best-effort. ...

We consider a grid network where nodes contain small buffers. A packet that faces a crowded buffer in its route will get extra latency and may be dropped. In this paper, we propose a novel flow control protocol called RFCC for grid networks. RFCC tries to reroute delayed packets and utilizes network coding to introduce a configurable amount of redundant information in the network, thereby incre...

introduction: disabled-adjusted life year (daly) makes it possible to calculate the time and duration of the disease and its non-fatal consequences along with the time lost due to premature death. this study was aimed to estimate the burden of road traffic accidents (rta) in kermanshah province. methods: to determine the mortality related to road-traffic accidents as well as years of life lost ...

Cypress tree with blue green foliage and scaly reddish brown bark is planted throughout world as an ornamental plant. One of the newest ways for determining amount and kind of environmental pollutants is natural biomonitoring. The samples were obtained from three sites (heavy traffic, moderate traffic and control) in Isfahan during August-September and November-December 2013 and February-March ...

We consider a grid network where nodes contain small buffers. A packet that faces a crowded buffer in its route will get extra latency and may be dropped. In this paper, we propose a novel flow control protocol called RFCC for grid networks. RFCC tries to reroute delayed packets and utilizes network coding to introduce a configurable amount of redundant information in the network, thereby incre...

The question of women‘s rights in Islam generates huge interest among Muslims and non-Muslims alike. Scholars of feminism are sharply divided on the question of women‘s status in Islam. One group associates Islam with misogyny and gender oppression, while the other celebrates the religion as a liberatory force for women. Remarkably, despite a surge in female educational attainment and conscious...

T o what extent does the separation of powers affect congressional roll call voting behavior? To answer this question, I offer a strategic model of congressional decision making that asserts members of Congress pursue public policy goals when casting roll call votes. From the equilibrium predictions of a formal model, I generate testable hypotheses by computing the expected net amount of sophis...