| 摘要 |
There is disclosed a technique which provides a node discovery method and others capable of detecting a TA allowing a quasi-optimized data route for the achievement of a quasi-optimized data route while guarding the location privacy of an MN. This technique comprises a step in which a mobile node 101 transmits a first message, which is a message with a predetermined format, for the discovery of a processing node to a communication node 102, a step in which a relay node capable of processing the message with the predetermined format makes a judgment on the basis of the first message, received, as to whether the relay node itself is the processing node, and a step in which, when the judgment shows that the relay node itself is the processing node, the relay node which has made the judgment and which is capable of processing the message with the predetermined format transmits a second message, indicating that it becomes the processing node, to the mobile node.
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