Abstract: The invention relates to a method of transmitting a data unit over a plurality of transmission paths of a wireless communication system that is adapted to minimize bandwidth usage and energy consumption while maintaining transmission robustness. A method of transmitting K data blocks of a data unit comprises the steps of encoding the data unit into an encoded data unit comprising N encoded blocks, with N>K, using an error correction code having a minimum distance d; and transmitting the N blocks of the encoded data unit over a set of NP transmission paths, where NP?2, wherein at least N?d+1 different encoded blocks are transmitted over at least one subset of NP?M transmission paths, where M is representative of the number of transmission paths that can be blocked without preventing the receiver from recovering the K data blocks of the data unit.

Abstract: The invention pertains to a method for determining a sequence of access (300) to a communications network (100) by a plurality of nodes (101, 102, 103, 5 104, 107) of said communications network (100) in the context of the broadcasting of a data content by a transmitter node (101) to a set of receiver nodes (103, 107, 104, 102), at least one receiver node (102, 104) having to receive said content by means of another receiver node (103, 107), called a relay receiver node.

Abstract: The invention relates to a method of determining the instant of consideration of a modification of at least one reception condition for signals in a communication system comprising at least two communication devices. The method comprises the steps, executed by a communication device, of detecting (E702) at least one modification of the reception conditions for signals in the communication system, determining (E703) the instant at which at least one other communication device will have detected the modification of the reception conditions for the signals, and establishing (E704) an operating mode of the first communication device as a function of the instant determined. The invention also relates to an associated determining device.

Abstract: A method provides for building a network coding scheme for the transmission of data between multiple source nodes and multiple destination nodes in a communications network having multiple nodes. The method includes the steps of: for each destination node, determining a first set of source nodes from which there exist disjointed paths, in the communications network, to reach the destination node; determining a second set of source nodes which is the intersection of the first determined sets for the destination nodes; and determining a sub-network for implementing the network coding. The sub-network includes source nodes which belong only to the second set of source nodes, the multiple destination nodes, and nodes included in the disjointed paths connecting the source nodes of the second set of source nodes and the destination nodes. The method also includes the step of building a network coding scheme based on the determined sub-network.

Abstract: A data stream is transmitted from a transmitting device to a receiving device via a communication network. Data of the data stream is transmitted to the receiving device by using a transport protocol without data acknowledgement. In a transmission method, parity-encoding parameters for parity encoding a data set of the data stream is determined via the transmitting device. The transmitting device also generates parity data from the data set by using the determined parity-encoding parameters. The transmitting device further transmits the generated parity data to the receiving device via the communication network by using a transport protocol with data acknowledgement.

Abstract: The invention pertains to a method for determining a sequence of access (300) to a communications network (100) by a plurality of nodes (101, 102, 103, 5 104, 107) of said communications network (100) in the context of the broadcasting of a data content by a transmitter node (101) to a set of receiver nodes (103, 107, 104, 102), at least one receiver node (102, 104) having to receive said content by means of another receiver node (103, 107), called a relay receiver node.

Abstract: The invention relates to a method for transmitting a plurality of data packets to a receiver in a data communication system. The method comprises the steps of transmitting one or more data packets from a list of data packets to be transmitted (300); determining whether an acknowledgment is received for each transmitted data packet (301), and further comprises the following steps executed when it is determined at the determining step that an acknowledgement has not been received for at least one data packet, referred to as an unacknowledged data packet: selecting one or more additional data packets from the list of data packets to be transmitted (302); generating one or more parity packets by encoding a block of data containing a combination of the selected one or more additional data packets and at least one unacknowledged data packet using a forward error correction scheme (304); and transmitting at least one of the generated parity packets (305).

Abstract: A method is proposed for building a network coding scheme adapted to the transmission of data between a plurality of source nodes and a plurality of destination nodes in a communications network comprising a plurality of nodes, the method comprising the following steps: for each destination node, determining a first set of source nodes from which there exist disjointed paths, in the communications network, to reach the destination node; determining a second set of source nodes which is the intersection of the first determined sets for the destination nodes; determining a sub-network for implementing the network coding comprising: source nodes which belong only to the second set of source nodes, the plurality of destination nodes, and nodes included in the disjointed paths connecting the source nodes of the second set of source nodes and the destination nodes; and building a network coding scheme based on the determined sub-network.

Abstract: The invention relates to a method of determining the instant of consideration of a modification of at least one reception condition for signals in a communication system comprising at least two communication devices. The method comprises the steps, executed by a communication device, of: detecting (E702) at least one modification of the reception conditions for signals in the communication system, determining (E703) the instant at which at least one other communication device will have detected the modification of the reception conditions for the signals, establishing (E704) an operating mode of the first communication device as a function of the instant determined. The invention also relates to an associated determining device.