Thomson Licensing

International Business Machines Corporation

Augustin Chaintreau

Joshua Reich

Zhen Liu

Anton Viktorovich Riabov

Francois Baccelli

Sambit Sahu

Mary-Luc Champel

Christophe Diot

Christoph Neumann

Pierre Houeix

Laurent Massoulie

Efstratios Ioannidis

Ali Boudani

Augustin Soule

Kyoungwon Suh

Stratis Ioannidis

Anton Riabov

A method is intended for controlling dissemination of content in a peer-to-peer mode between peers having wireless communication capacities. This method consists, each time a peer receives a content item it had requested and which is associated to a request counter, in creating at least one set of instructions intended for allowing replication of this content item by this peer, and in authorizing this peer to generate at most N replications of this content item for other peers it will meet and which does not possess it, where N is an integer value depending on the current value of this request counter and of an impatience reaction function which is representative of the mean time these peers are ready to wait for obtaining this content item.

Device and method for controlling dissemination of contents between peers having wireless communication capacities, depending on impatience reaction functions

A method is intended for controlling dissemination of data in a peer-to-peer mode between peers having wireless communication capacities. This method consists i) in creating N sets of instructions in a first peer each set being intended to be used for carrying out an action relative to these data and to be deleted after having been used, and ii) when this first peer cannot use locally remaining sets of instructions relative to these data, in transferring at least one of these remaining sets of instructions from this first peer to at least one second peer in order that this remaining set of instructions could possibly be used by this second peer.

Device and method for controlling dissemination of data by transfer of sets of instructions between peers having wireless communication capacities

A method is intended for controlling dissemination of content in a peer-to-peer mode between peers having wireless communication capacities and comprising a cache memory for storing contents. This method consists, each time a peer, having a group of variable values each associated to a content it can store into its cache memory and representative of utility that storing of this content represents for it and for other peers, accesses to a wireless network or to another peer offering access to these contents, in downloading N contents having the N highest variable values into its group, N being a number depending on the storage capacity the peer is ready to use into its cache memory to store contents to be downloaded.

Device and method for controlling dissemination of contents between peers having wireless communication capacities, depending on vote vectors

A communication device in a communication network and method for communicating between two or more different devices in the communication network. One implementation includes a means for storing for each (source, destination) pair of communication devices of the communication network, paths in the form of lists of (LD, EA) pairs, where EA is an earliest arrival time to a first communication device and LD is a last departure time from a second communication device for any sequence of contacts between pairs of communication devices linking the source communication device and the destination communication device. Data is transmitted to another communication device by a node selected using a history of observed previous observed paths.

Representation of a delay path in mobile networks

A method for group communication over a network of processors comprises determining an overlay spanning tree comprising an origin node and at least one receiving node, and controlling a source communication rate to be less than or equal to a bottleneck rate of the overlay spanning tree.

Apparatus for scalable reliable group communication

The present invention relates to a method for the distribution of multimedia content, comprising:

Multimedia content delivery method and system

The present invention addresses scalability and end-to-end reliability in overlay multicast networks. A simple end-system multicast architecture that is both scalable in throughput and reliable in an end-to-end way is used. In this architecture, the transfers between nodes use TCP with backpressure mechanisms to provide data packet transfers between intermediate nodes having finite-size forwarding buffers. There is also a finite-size backup buffer in each node to store copies of packets which are copied out from the receiver window to the forwarding buffers. These backup buffers are used when TCP connections are re-established to supply copies of data packets for the children nodes after their parent node fails, maintaining a complete sequence of data packets to all nodes within the multicast overlay network. The architecture provides end-to-end reliability, tolerates multiple simultaneous node failures and provides positive throughput for any group size and any buffer size.

Growing community of inventors

Paris, France

Augustin Chaintreau