Radio communication system, radio relay device, and storage medium

A radio relay device in a radio communication system including a radio communication device configured to request connection to a network, and a plurality of radio relay devices configured to relay the connection request to the network, the radio relay device comprising:

• an adjacent node information management unit configured to manage an index value related to a communication quality of a radio relay device adjacent to the radio relay device;
• a response waiting time calculation unit configured to receive, from the radio communication device, an adjacence discovery packet for discovering a radio relay device serving as a connection destination among the plurality of the radio relay devices, and then calculates a response waiting time to transmission of a response packet in response to the adjacence discovery packet by comparing the index value of the radio relay device and the index value of the adjacent radio relay device with a threshold;
• and
• a response packet transmission unit configured to transmit the response packet to the radio communication device after elapse of the response waiting time calculated by the response waiting time calculation unit.

A non-transitory computer-readable storage medium having a radio relay program stored therein, the radio relay program causing a computer installed in a radio relay device in a radio communication system including a radio communication device configured to request connection to a network and a plurality of radio relay devices configured to relay the connection request to the network, to function as:

• an adjacent node information management unit configured to manage an index value related to a communication quality of a radio relay device adjacent to the radio relay device;
• a response waiting time calculation unit configured to receive, from the radio communication device, an adjacence discovery packet for discovering a radio relay device serving as a connection destination among the plurality of the radio relay devices, and then calculates a response waiting time to transmission of a response packet in response to the adjacence discovery packet by comparing the index value of the radio relay device and the index value of the adjacent radio relay device with a threshold;
• and
• a response packet transmission unit configured to transmit the response packet to the radio communication device after elapse of the response waiting time calculated by the response waiting time calculation unit.