Relay station installation position calculation device, installation position calculation method, and installation position calculation program

An installation position calculation device of a relay station comprising:

• first identification circuitry configured to identify a position of an installed station candidate point at which an line of sight (LOS) region from a relay station is maximized, as an installation position of a first relay station, based on a relayable range of a radio wave by the relay station within an installed station candidate range in which the relay station relaying the radio wave is installable or among a plurality of installed station candidate points determined in advance as installation position candidates of the relay station;
• next candidate point extraction circuitry configured to regard an installation position of the first relay station identified by the first identification circuitry as a transmission point of the radio wave, and extract two or less top installed station candidate point at which a next relay station maximizes an LOS region based on a relayable range of the radio wave by the next relay station;
• correction circuitry configured to correct a position of each of the next installed station candidate points extracted by the next candidate point extraction circuitry based on a Fresnel zone for the next relay station;
• second identification circuitry configured to identify, as an installation position of the next relay station, a position of a next installed station candidate point at which a reflection angle of the radio wave toward the next installed station candidate point extracted by the next candidate point extraction circuitry or the next installed station candidate point of which the position is corrected by the correction circuitry is minimized;
• and
• a controller configured to perform control such that a total number of installation positions of the relay stations identified by the first and second identification circuitries becomes a predetermined number.