Neighbor node discovery method and system

Abstract

Embodiments of the present invention provide a neighbor node discovery method and system. The method is applied in a sensor network, the sensor network includes a plurality of nodes with limited energy, and the neighbor node discovery method includes: setting the time period of each node; each node according to the time period The specified mode works, the node wakes up in the first wake-up time slot and the second wake-up time slot in the time period, and remains dormant in the other time slots of the time period; the first node and the second node are in one of the time periods Realize that the first wake-up time slot of the first node intersects with the first wake-up time slot of the second node, or the first wake-up time slot of the first node intersects with the second wake-up time slot of the second node, and the first node and the second node The second node implements node discovery during the crossover period of the wake-up time slot, wherein the first node refers to one node in the sensor network, and the second node refers to another node in the sensor network.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a neighbor node discovery method and system. Background technique [0002] In wireless sensor networks, neighbor discovery is the first step in network construction, but the discovery of neighbor nodes needs to realize the transmission and reception of discovery data when the nodes are all awake. However, the nodes in the sensor network are generally powered by batteries, but the battery capacity is limited, and it is troublesome to replace, resulting in very limited energy of the nodes. Therefore, the nodes generally cannot be kept awake to realize the discovery of neighbor nodes. But the nodes keep dormant most of the time, which will lead to low efficiency of node discovery. Therefore, a way to realize neighbor node discovery under the condition of low energy consumption is urgently needed. Contents of the invention [0003] In view of this, the purpose of the emb...

AI Technical Summary

Problems solved by technology

However, the nodes in the sensor network are generally powered by batteries, but the capacity of the battery is limited, and it is troublesome to replace, resulting in very limited energy of the nodes. Therefore, the nodes generally cannot use the state of being awake all the time to realize the discovery of neighbor nodes.

But the node remains dormant most of the time, which will lead to inefficient node discovery

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