| 摘要 |
In ad hoc systems using OLSR, when a mobile node moves out of the fixed node's communication area, communication is impossible in the period from leaving the communication area until the time-out, even if there is a node to relay communications between the fixed node and mobile node. Switching from direct communication to 2-hop communication without interruption is therefore important for achieving continuous communication. Each node reports its position information and speed information to a neighbor mode. The fixed node compares that information with its own communication area, detects mobile node movement to outside the communication area from the mobile node's position and speed information, and switches beforehand to 2-hop communication via a relay node.
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