We study a flow-level model where elastic flows compete with fixed-rate streaming flows. We assume that streaming flows are served with priority, the remaining bandwidth being shared by elastic flows according to Balanced Fairness. We derive exact performance results for streaming flows, and propose performance approximations for elastic flows. Simulation results show that the relevant performa...

A major characteristic of dynamic regions or sets of dynamic regions is that external exports and imports are very significant in comparison with internally generated flows. Yet, it is precisely these flows of external exports and imports that are not evaluated in conventional regional input-output (I-O) analysis. The conventional approach merely determines internal flows of intermediate inputs...

We study a simplistic model of instationary gas flows consisting of a sequence of k stationary gas flows. We present efficiently solvable cases and NP-hardness results, establishing complexity gaps between stationary and instationary gas flows (already for k = 2) as well as between instationary gas s-t-flows and instationary gas b-flows.

This paper examines the interaction among short-lived and long-lived TCP flows in a test network that can be operated as an ordinary best effort or as a Differentiated Services (DS) enabled network, and shows how TCP service can be improved by isolating TCP flows based on their different characteristics. The target of the measurements was to investigate the interaction among TCP flows having si...

intra-industry trade (iit) comprises of instantaneous imports and exports of goods and services which are handled in a same industry. the importance of iit between trading partners refers to those tradable products that provide them with diversity and high technology. to expand its foreign trade relations, iran indeed requires such trade patterns that include diversification of goods and servic...