표 3. | Table 3. 실제 사례 분석에 활용된 변수 | Variables using the case study.

Factors	Variables	Definition
Output	Coverage	∑Number of spectrum channels used in the area where the radio station is deployed×the range of area where the radio station is deployed (km2)/total number of spectrum channels (bandwidth)×national area (km2)
Input	Radio station	Number of radio station
	Bandwidth	Amount of spectrum
	1 GHz dummy	Dummy variable that takes the value of 1 if the spectrum band is over the 1 GHz
	Public dummy	Dummy variable that takes the value of 1 if the spectrum is for public or non-business use