Being the network system which constructs network topology with the network system,

摘要

PROBLEM TO BE SOLVED: To obtain a network system in which each sensor node having a mobile function forms an autonomous distributed network topology without utilizing the positional information.;SOLUTION: Each sensor node transmits a HELLO message periodically and exchanges information with neighboring nodes. In a high density node region, the nodes are classified into node of Expand state and nodes of Bridge state. The node of Expand state shifts to Stay when it is connected only with a single neighboring node and becomes a component of topology. The node of Bridge state shifts to Stay state together with neighboring nodes having a predetermined number of hidden terminals mutually and becomes a component of topology.;COPYRIGHT: (C)2006,JPO&NCIPI