Orange S.A.

About: Orange S.A. is a company organization based out in Paris, France. It is known for research contribution in the topics: Terminal (electronics) & Signal. The organization has 6735 authors who have published 9190 publications receiving 156440 citations. The organization is also known as: Orange SA & France Télécom.

On Stochastic Bounds for Monotonic Processor Sharing Networks

Abstract: We consider a network of processor sharing nodes with independent Poisson arrival processes Nodes are coupled through their service capacity in that the speed of each node depends on the number of customers present at this and any other node We assume the network is monotonic in the sense that removing a customer from any node increases the service rate of all customers Under this assumption, we give stochastic bounds on the number of customers present at any node We also identify limiting regimes that allow to test the tightness of these bounds The bounds and the limiting regimes are insensitive to the service time distribution We apply these results to a number of practically interesting systems, including the discriminatory processor sharing queue, the generalized processor sharing queue, and data networks whose resources are shared according to max–min fairness

An Online Public Auction Protocol Protecting Bidder Privacy

Abstract: On-line auctioning is one of the fundamental services for the new Internet economy. Most current auction services are public auction where all bids are made available to any party. User privacy is a primary concern in electronic world because electronic environment facilitates the gathering of personal data. This paper proposes a public auction protocol that achieves bidder privacy using binding group signatures. A concrete solution for preventing defaults in auctions is also presented.

Using mobile phone geolocalisation for ‘socio‐geographical’ analysis of co‐ordination, urban mobilities, and social integration patterns

Abstract: We report here on research aiming to reconstruct urban mobilities and communication practices through mobile phone base data. We have developed a software probe that can be implemented on a user's mobile phone, and which allows the joint recording and collection of the successive locations experienced by the user (through the identification of the cell in which the mobile phone is located) and all types of communicative acts performed through the mobile phone. This has been combined to indepth interviews with subjects over one week of their mobility and mobile communication behaviour. The method has been tested over a sample of 24 adults living in Paris, all in the 30–45 age range, half male and half female, with varying histories of mobility and professional flexibility constraints, in order to reconstruct their mobility and their communication-based activity spaces. We show how such a method enables the construction of a long time perspective on mobilities, and particularly on the articulation of displacements and mobile communication, which is an important issue in the ‘new mobilities paradigm’. We show how, over longer periods, mobility and communication practices combine into patterns marking social integration (or disintegration). We also show how our method allows us to construct new types of indicators, such as the propensity to communicate from a given type of place per unit of time, that reveal underlying patterns such as a higher propensity to call in mobile situations and transitory locations. This type of approach may be particularly relevant to the ongoing convergence of transport and communication studies, and to bridge the gap between communication research and mobility studies.

Packet radio network and method

Abstract: A packet radio network provides a facility for communicating internet packets to and/or from a mobile user equipment. In response to a packet data protocol activation request message requesting a common packet data protocol context, the serving support node is operable in combination with the gateway support node to establish a common packet data protocol context in association with a common packet communications bearer. The common packet data protocol context is established to communicate internet protocol packets via the common packet communications bearer. The common packet communications bearer is shared with at least one other communications session and is formed by the gateway support node and the serving support node using a common tunnelling protocol bearer. Therefore a packet radio network is provided which can provide a common communications bearer which can be shared between different communications sessions.