| 摘要 |
A gateway apparatus (5) that connects a multi-hop network (2) of tree structure formed of node apparatuses (6) to other network (3), comprising, a grouping unit (24) that groups, for each representative node apparatus (6) having a direct link to the gateway apparatus (5) in the tree structure, the nodes belonging to a subtree having same representative node as a root, into a node group (7), an interference group specifying unit (27) that specifies a node group (7) in which packet communication in the node group (7) is subjected to an interference of a degree exceeding a threshold as an interference group, and a slot allocation unit (31) that allocates one time slot among a plurality of time slots included in a frame which is a packet transmission period of the node apparatus (6) to one interference group among a plurality of interference groups as a packet transmission period, and allocates another time slot among the plurality of time slots to another interference group among the plurality of interference groups as a packet transmission period. |
