| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packet relay system establishing an up route to a sink node without increasing a communication information amount in a network. <P>SOLUTION: In each node included in this packet relay system, link cost is calculated based on an arrival factor of packets from adjacent nodes; a cumulative value of the link cost calculated by the respective nodes from a sink node to one of the adjacent nodes are acquired; path cost for the one adjacent node is calculated by adding the cumulative value to the link cost calculated for the one adjacent node; and a data packet is relayed to the one adjacent node selected from the adjacent nodes based on the path cost on an adjacent node basis. <P>COPYRIGHT: (C)2010,JPO&INPIT |
