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.

Process and device for allocating resources in a packet transmission digital network

Abstract: In a packet data transmission digital network, a data receiver node dispatches to an adjacent data sender node packets of credits containing information about its capacity to receive data packets; the sender dispatches the data packets which it needs to transmit so long as it has sufficient credits; when its credits are exhausted, it continues to dispatch, in advance, the waiting data packets and preserves each data packet sent in advance until reception thereof is confirmed by the arrival of specific packets originating from the receiver; the receiver dispatches to the sender information indicating the lost data packets; the sender retransmits the data packets whose loss has been signalled by the receiver and destroys the data packets which were sent in advance and preceding the lost data packets.

A 60 GHz Wireless Home Area Network With Radio Over Fiber Repeaters

Abstract: Home area networks will have to deal with the future multigigabit wireless systems that are emerging or are under development . These millimeter-wave radio systems achieve data rates up to several Gb/s per channel, but over short distance. So, to expand the radio coverage, we propose to introduce a radio-over-fiber (RoF) infrastructure at home. This paper presents a complete study of a RoF system: the 60 GHz radio coverage is extended using a RoF link working at intermediate frequency with two hops in the air. An experimental setup of such an infrastructure has been realized and characterized. A low-cost solution, working at 850 nm, was chosen using multimode fiber and off-the-shelf millimeter-wave and photonic components. Finally, a real-time transmission between two commercial WirelessHD devices working at 3 Gb/s has been carried out.

Cost optimization of optical in-building networks

Abstract: Optical fiber-based in-building network solutions can outperform in the near future copper- and radio-based solutions both regarding performance and costs. POF solutions are maturing, and can already today be cheaper than Cat-5e solutions when ducts are shared with electricity power cabling. We compare the CapEx and OpEx of in-building networks for fiber and Cat-5E solutions. For residential homes, our analysis shows that total network costs during economic lifetime are lowest for a point-to-point duplex POF topology.

Identification of participant in a teleconference

Abstract: The invention concerns a method for identifying a speaker among participants distributed in groups (G1 to GI) in the proximity of telephone terminals (T1 to TI) by his/her voice during a teleconference managed by a conference device (PCT) connected to the terminals. After the speaker's voice has been identified in reception by the conference device, an identifier of the speaker's voice is broadcast from the conference device to the terminals and reproduced in the terminals. The speaker is introduced to the other participants, automatically or on request, for instance, by a voice or visual message comprising his/her name. The conference device may be included in one of the terminals; for example, the identifier identifies a speaker other than the communicating telephone or radiotelephone station owner.

Discovering and exploiting 802.11 wireless driver vulnerabilities

Abstract: 802.11 Wireless local area networks are unfortunately notoriously infamous due to their many, critical security flaws. Last year, world-first 802.11 wireless driver vulnerabilities were publicly disclosed, making them a critical and recent threat. In this paper, we expose our research results on 802.11 driver vulnerabilities by focusing on the design and implementation of a fully featured 802.11 fuzzer that enabled us to find several critical implementation bugs that are potentially exploitable by attackers. Lastly, we will detail the successful exploitation of the first 802.11 remote kernel stack overflow under Linux (madwifi driver).