Abstract: This method, executed in a group of nodes of the ad hoc network (1) including a source (10), first and second relays (11, 12) and an addressee (13), the relays being neighbors of the source, the addressee being a neighbor of the relays, the source having useful data to be retransmitted towards a final addressee (15) through a routing path passing through the first relay (11), and then the addressee (13), consist of: computing a first characteristic quantity of an elementary path between the source (10) and the addressee (13), via the first relay (11) and a second characteristic quantity of an elementary path between the source (10) and the addressee (13), via the second relay (11); verifying the observance of a criterion for the first characteristic quantity; and, in case of negative verification, using the second relay (12) for relaying the useful data from the source (10), towards the addressee (13).

Abstract: This method, executed in a group of nodes of the ad hoc network (1) including a source (10), first and second relays (11, 12) and an addressee (13), the relays being neighbors of the source, the addressee being a neighbor of the relays, the source having useful data to be retransmitted towards a final addressee (15) through a routing path passing through the first relay (11), and then the addressee (13), consist of: computing a first characteristic quantity of an elementary path between the source (10) and the addressee (13), via the first relay (11) and a second characteristic quantity of an elementary path between the source (10) and the addressee (13), via the second relay (11); verifying the observance of a criterion for the first characteristic quantity; and, in case of negative verification, using the second relay (12) for relaying the useful data from the source (10), towards the addressee (13).

Abstract: The transmission method according to the invention includes transmitting a message from a source transmitting node to a final receiving node through a series of hops from a transmitter node to an immediately following receiver node, using: a) a reliability management mechanism including applying a retransmission law of the message on the hop, from the transmitting node to the receiving node, said law including message non-retransmission rules leading to the non-retransmission of the message, b) a mechanism for managing congestion of the nodes providing for a limitation of the throughput (?) for sending from a transmitting node to a receiving node following congestion information from the receiving node sent to the transmitting node, said mechanism being applied only hop-by-hop, the congestion information only being transmitted from a receiving node to a transmitting node over a same hop to limit the throughput of only the transmitting node toward only the receiving node.

Abstract: The invention relates to a method for transmission of messages from a sender node to multiple destination nodes in a network in which: The same message is sent from the sender node to multiple destination nodes, and the destination node of a message returns an acknowledgment message to the sender node after receiving the message it comprises a step of the distribution, by the sender node, of the destination nodes into at least two groups of destination nodes according to a predetermined distribution criterion taking into account the to and fro travel time between the sending of the message and the receiving of the acknowledgment message from the destination node, and a step of sending of messages to destination nodes in the same group with a latency period between the sending of two successive messages to the same destination nodes of the same group, the latency periods, each specific to a group and defining the throughput rate of the group being different from one group to another.

Abstract: The transmission method according to the invention includes transmitting a message from a source transmitting node to a final receiving node through a series of hops from a transmitter node to an immediately following receiver node, using: a) a reliability management mechanism including applying a retransmission law of the message on the hop, from the transmitting node to the receiving node, said law including message non-retransmission rules leading to the non-retransmission of the message, b) a mechanism for managing congestion of the nodes providing for a limitation of the throughput (A) for sending from a transmitting node to a receiving node following congestion information from the receiving node sent to the transmitting node, said mechanism being applied only hop-by-hop, the congestion information only being transmitted from a receiving node to a transmitting node over a same hop to limit the throughput of only the transmitting node toward only the receiving node.

Abstract: The invention relates to a method for transmission of messages from a sender node to multiple destination nodes in a network in which: The same message is sent from the sender node to multiple destination nodes, and the destination node of a message returns an acknowledgment message to the sender node after receiving the message it comprises a step of the distribution, by the sender node, of the destination nodes into at least two groups of destination nodes according to a predetermined distribution criterion taking into account the to and fro travel time between the sending of the message and the receiving of the acknowledgment message from the destination node, and a step of sending of messages to destination nodes in the same group with a latency period between the sending of two successive messages to the same destination nodes of the same group, the latency periods, each specific to a group and defining the throughput rate of the group being different from one group to another.