One of the main characteristics of on demand computing in general and of utility computing services in particular is the “pay-as-you-go” model. To implement this model, one needs a flexible way to meter the services and resources being used. The UMI (Universal Management Infrastructure) architecture, designed to provide common functions that are needed by most, if not all, of the utilities in a...

A metering scheme is a method by which an audit agency is able to measure the interaction between servers and clients during a certain number of time frames. Naor and Pinkas 7] considered schemes in which any server is able to construct a cryptographically secure proof if and only if it has been visited by at least a number, say h, of clients in a given time frame. In this paper we construct me...

A new ramp metering strategy implemented on the Twin Cities freeway system to reduce ramp waiting times was evaluated through microsimulation of freeway activity. The study compared Stratified Ramp Metering strategy with the previous Zone Metering Strategy and with no control strategy. Comparison with Zone, which was designed to favor freeway flow, showed the new strategy succeeded in greatly r...

Since the advent of the law 86/14 concerning the exploitation of the national territory by foreign companies in partnership with the Algerian oil and gas company, the problem of hydrocarbons metering in the sharing production come out. More generally, good management counting hydrocarbons can provide data on the production wells, the field and the reservoir for medium and long term planning, pa...

We consider an environment in which many servers serve an even larger number of clients (e.g. the web), and it is required to meter the interaction between servers and clients. More speciically, it is desired to count the number of clients that were served by a server. A major possible application is to measure the popularity of web pages in order to decide on advertisement fees. The metering p...

The Diameter of Things (DoT) protocol is intended to provide a near real-time metering framework for IoT applications in resource-constraint gateways. Respecting resource capacity constraints on edge devices establishes a firm requirement for a lightweight protocol in support of fine-grained telemetry of IoT deployment units. Such metering capability is needed when lack of resources among compe...

The paper characterizes the behavior of the cell transmissionmodel of a freeway, divided intoN sections or cells, each with one on-ramp and one off-ramp. The state of the dynamical system is theN-dimensional vector n of vehicle densities in theN sections. A feasible stationary demand pattern induces a unique equilibrium flow in each section. However, there is an infinite set—in fact a continuum...

In this paper we deal with model predictive control for ramp metering on motorways. A discussion of the way ramp metering tries to prevent, or postpone, congestion on a motorway is presented. As an example, a real-life motorway in Belgium is presented. We discuss a traffic flow model that is used in a receding horizon framework and we argue that the quality of the fit of the traffic flow model ...