Method for Broadcasting Alert Message in Mobile Multi-Hop Networks Using Inferred Distance Prioritization
First Claim
1. A method for broadcasting an alert packet in a wireless multi-hop network of nodes, comprising:
- sensing an event in a source node of the network;
broadcasting an alert packet in response to sensing the event;
receiving the alert packet in a set of candidate nodes within a broadcast range of the source node;
inferring, in each candidate node, a distance between the candidate node and the source node based on a receive power of the received alert packet;
determining, in each candidate node, a priority for rebroadcasting the alert packet, wherein the priority is based on the distance to minimizing a probability of collisions while rebroadcasting the alert packet and extend a range of the rebroadcasting.
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Abstract
A method and system broadcasts an alert packet in a wireless multi-hop network of nodes. An event is sensed in a source node of the network, and an alert packet is broadcast in response to sensing the event. The alert packet is received in a set of candidate nodes within a broadcast range of the source node. Each candidate node infers a distance between the candidate node and the source node based on a receive power of the received alert packet, and determines a priority for rebroadcasting the alert packet, wherein the priority is based on the distance to minimizing a probability of collisions while rebroadcasting the alert packet and extend a range of the rebroadcasting.
15 Citations
19 Claims
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1. A method for broadcasting an alert packet in a wireless multi-hop network of nodes, comprising:
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sensing an event in a source node of the network; broadcasting an alert packet in response to sensing the event; receiving the alert packet in a set of candidate nodes within a broadcast range of the source node; inferring, in each candidate node, a distance between the candidate node and the source node based on a receive power of the received alert packet; determining, in each candidate node, a priority for rebroadcasting the alert packet, wherein the priority is based on the distance to minimizing a probability of collisions while rebroadcasting the alert packet and extend a range of the rebroadcasting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for broadcasting an alert packet in a wireless multi-hop network of nodes, comprising:
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a source node configured to sense an event and to broadcast an alert packet in response to sensing the event; a set of candidate nodes, wherein each candidate node is configured to receive the alert packet when within a broadcast range of the source node, and wherein each candidate node further comprises; means for inferring a distance between the candidate node and the source node based on a receive power of the received alert packet; and means for determining a priority for rebroadcasting the alert packet, wherein the priority is based on the distance to minimizing a probability of collisions while rebroadcasting the alert packet and extend a range of the rebroadcasting.
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Specification