Method for distributing data packets in a mobile node network and associated node
AssigneeFrance Telecom
InventorsMoez Jerbi, Sidi-Mohammed Senouci, Yacine Ghamri-Doudane
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Abstract
A method of broadcasting a data packet (D) in an ad hoc network comprising a plurality of groups of mobile nodes traveling along traffic lanes in a road network. The data packet (D) is broadcast within a group (G) during an intragroup broadcasting phase during which the data packet (D) propagates simultaneously in two opposing directions of movement (A1, A2), such that the packet (D) is received by peripheral nodes (B1, B2) of the group (G). During an intergroup broadcasting phase, a peripheral node (B) transmits the data packet (D) to another group.
Claims9
A method of broadcasting at least one data packet in a network including a set of groups of mobile nodes, said method including an intragroup broadcast phase during which said at least one data packet is broadcast to the mobile nodes of the same group, said intragroup broadcast phase including an initial broadcast during which a source node broadcasts said at least one data packet to a set of neighbor nodes wherein said intragroup broadcast phase further includes electing two propagation nodes moving in opposite directions away from each other during which a first neighbor node of said source node is elected as a first propagation node on condition that it is located ahead of the source node relative to the direction of movement of the source node and is moving in the same direction as the source node and during which a second neighbor node of said source node is elected as a second propagation node on condition that it is located behind the source node relative to the direction of movement of the source node and is moving in the direction opposite to the direction of movement of said source node.
A system for broadcasting at least one data packet including a set of groups of mobile nodes forming a network, wherein a group of nodes includes:
- a source node broadcasting said at least one data packet to a set of neighbor nodes within said group of nodes;
- and
- two propagation nodes moving in opposite directions away from each other, a first neighbor node of said source node being elected as a first propagation node on condition that it is located ahead of the source node relative to the direction of movement of the source node and is moving in the same direction as the source node and a second neighbor node of said source node being elected as a second propagation node on condition that it is located behind the source node relative to the direction of movement of the source node and is moving in the direction opposite the direction of movement of said source node, each propagation node broadcasting the at least one data packet.
A network for broadcasting at least one data packet, said network including a set of groups of mobile nodes, said network being programmed to perform an intragroup broadcast phase during which said at least one data packet is broadcast to the mobile nodes of the same group, said intragroup broadcast phase including an initial broadcast during which a source node broadcasts said at least one data packet to a set of neighbor nodes wherein said intragroup broadcast phase further includes electing two propagation nodes moving in opposite directions away from each other during which a first neighbor node of said source node is elected as a first propagation node on condition that it is located ahead of the source node relative to the direction of movement of the source node and is moving in the same direction as the source node and during which a second neighbor node of said source node is elected as a second propagation node on condition that it is located behind the source node relative to the direction of movement of the source node and is moving in the direction opposite to the direction of movement of said source node.
Dependencies are inferred from the claim text.