WIRELESS COMMUNICATION SYSTEM, CENTRALIZED CONTROL DEVICE, CENTRALIZED CONTROL METHOD AND CENTRALIZED CONTROL PROGRAM
A wireless communication system according to an embodiment includes: a plurality of access points that perform wireless communication with wireless terminals; and a centralized control device that centrally controls each of the access points and relay devices, and the centralized control device calculates a ratio of a transmittable traffic volume to an accommodated traffic volume based on an allocated channel and bandwidth as a utility function, sets a value corresponding to a transmittable traffic volume of a higher-level device in a relay configuration as an accommodated traffic volume of a lower-level device on the basis of each of the calculated utility functions, and performs control to change the channel and the bandwidth of each of the plurality of access points and the plurality of relay devices such that a sum of the utility functions calculated after setting the accommodated traffic volume is maximized.
1 . A wireless communication system comprising:
a plurality of access points that perform wireless communication via a plurality of relay devices that accommodate wireless terminals; and
a centralized control device that centrally controls each of the access points and the relay devices,
wherein the centralized control device includes:
utility function calculation circuitry configured to calculate, for each of the plurality of access points and the plurality of relay devices, a ratio of a transmittable traffic volume to an accommodated traffic volume based on an allocated channel and bandwidth as a utility function;
setting circuitry configured to set a value corresponding to a transmittable traffic volume of a higher-level device in a relay configuration as an accommodated traffic volume of a lower-level device on the basis of each of the utility functions calculated by the utility function calculation circuitry; and
change control circuitry configured to perform control to change the channel and the bandwidth of each of the plurality of access points and the plurality of relay devices such that a sum of the utility functions calculated by the utility function calculation circuitry after the setting circuitry set the accommodated traffic volume is maximized.
2 . A wireless communication system comprising:
a plurality of access points that perform wireless communication via a plurality of relay devices that accommodate wireless terminals; and
a centralized control device that centrally controls each of the access points and the relay devices,
wherein the centralized control device includes:
utility function calculation circuitry configured to calculate, for each of the plurality of access points and the plurality of relay devices, a ratio of a transmittable traffic volume to an accommodated traffic volume based on an allocated channel and bandwidth as a utility function;
setting circuitry configured to set a value corresponding to a sum of transmittable traffic volumes of lower-level devices in a relay configuration as an accommodated traffic volume of a higher-level device on the basis of each of the utility functions calculated by the utility function calculation circuitry; and
change control circuitry configured to perform control to change the channel and the bandwidth of each of the plurality of access points and the plurality of relay devices such that a sum of the utility functions calculated by the utility function calculation circuitry after the setting circuitry set the accommodated traffic volume is maximized.
3 . A wireless communication system comprising:
a plurality of access points that perform wireless communication via a plurality of relay devices that accommodate wireless terminals; and
a centralized control device that centrally controls each of the access points and the relay devices,
wherein the centralized control device includes:
utility function calculation circuitry configured to calculate, for each of the plurality of access points and the plurality of relay devices, a ratio of a transmittable traffic volume to an accommodated traffic volume based on an allocated channel and bandwidth as a utility function;
setting circuitry configured to set, for each of the plurality of access points and the plurality of relay devices, a sum of accommodated traffic volumes of each of the wireless terminals and the relay devices that are connectable as an accommodated traffic volume of its own device on the basis of each of the utility functions calculated by the utility function calculation circuitry; and
change control circuitry configured to perform control to change the channel and the bandwidth of each of the plurality of access points and the plurality of relay devices such that a sum of the utility functions calculated by the utility function calculation circuitry after the setting circuitry set the accommodated traffic volume is maximized.
4 .- 8 . (canceled)