Patent ID: 11924084
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A path selection method for a path selection apparatus to select a path in a sensor tree in a wireless sensor network including a plurality of nodes including a sensor node and a relay node, the path selection method comprising:
acquiring information on the nodes; and
determining a path in the sensor tree based on the information on the plurality of nodes,
wherein the determining of a path includes using node costs of the sensor node and the relay node in the wireless sensor network and weighting a path cost of a path passing through the relay node and selecting, continuously, a tree node until all of a plurality of sensor nodes are set as tree nodes in the sensor tree, and if, among a plurality of relay nodes, a relay node that does not transmit or receive a sensor report is present in a generated tree, delete the relay node.