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.

Regulation and innovation in the telecommunications industry

Abstract: This paper aims to introduce issues that relate regulation and innovation in the telecommunications industry. We try to address the following question: which types of regulatory schemes are likely to promote innovation in a fast-growing telecommunications industry? Section 2 analyses ex ante control by sector-specific regulation and ex post control by competition policies. Section 3 deals with the importance of compatibility hence regulation of standards in the telecommunications industry. Section 4 discusses the major issues pertaining to the relation between innovation and pricing on the one hand, and innovation and unbundling on the other. (This abstract was borrowed from another version of this item.)

Integrated Admission Control for Streaming and Elastic Traffic

Abstract: It is proposed to apply an integrated admission control scheme to both streaming flows and elastic flows. It is assumed that streaming flowpac kets are served with priority in network queues so that admission control ensures minimal delay for audio and video applications while preserving the throughput of document transfers. An implicit measurementbased implementation is proposed where admissibility is based on an estimation of the bandwidth a newelastic floww ould acquire. An analytical fluid flowmo del provides insight and guides the choice of admission thresholds. Detailed packet level simulations of TCP and UDP connections showthat the proposed algorithms work satisfactorily in the range of admission thresholds predicted by the fluid model.

Analytical Analysis of the Coverage of a MBSFN OFDMA Network

Abstract: In this paper, we develop a novel analytical model to examine the coverage and capacity of MBSFN (MBMS over a single frequency network) OFDMA, proposed to deliver TV services to mobile users in forthcoming 3G LTE networks. First, analytical expression for SINR at a given point in a cell is derived, which takes into account the SFN gain and propagation delay values. Next, the shadowing effect of propagation on MBSFN is considered. In addition, dynamic MBSFN, an advanced MBSFN technique, in which the network cells are dynamically activated based on user traffic, is modelled. Finally, the performance of MBSFN is evaluated based on the proposed analytical model. This includes the investigation of MBSFN related parameters such as the modulation and coding scheme (MCS) values and the length of cyclic prefix, as well as the verification on the accuracy of the proposed model and the impact of shadowing. Dynamic MBSFN is also analyzed and we show its effect on the coverage for different traffic scenarios.

Channel estimation with scattered pilots in OFDM/OQAM

Abstract: OFDM/OQAM is a multi-carrier modulation scheme that can be considered as an alternative to conventional OFDM with cyclic prefix (CP) for transmission over multi-path fading channels. As it requires no CP, it has the advantage of a theoretically higher spectral efficiency. Furthermore, efficient pulse shaping can also be easily implemented. However, the classical channel estimation methods used for OFDM cannot be directly applied to OFDM/OQAM. In this paper, we present an analysis of this problem and we introduce a channel estimation method using scattered pilots. The performance results are evaluated for a slow varying multi-path channel model. For both scenarios, the results of OFDM/OQAM, using 2 different pulse shaping, are compared to those of CP-OFDM.

Auto adaptive quality of service architecture & associated method of provisioning customer premises traffic

Abstract: A customer premises device is provided for monitoring quality of service (QOS) metrics between a network edge and a customer. The device includes a memory which stores at least one user profile, and, information regarding active sessions of traffic flow through the customer premises device. A hardware and/or software/firmware based controller monitors traffic flow between the customer and the network edge and receives requests for new active sessions. The processor accesses the at least one user profile stored in memory to identify a policy hierarchy with respect to active sessions of traffic flow upon receipt of a request to establish a new active session. The processor selects a candidate active session to be terminated based upon the policy hierarchy and terminates the selected session in accordance with information stored in memory regarding the selected session. In this manner, the processor enforces quality of service, for both upstream and downstream sessions, based upon the policy hierarchy of the user profile.