Techno economic approach of spectrum sharing between radar bands and LTE cellular system

Spectrum sharing using licensed shared access is one method of spectrum usage to be more optimal and efficient. In this paper we propose techno economic approach to know investment value and economic feasibility of using spectrum sharing at radar 2700–2900MHz band. Coverage area of spectrum sharing decided about 15km outside radar coverage at Soekarno Hatta international airport. By spectrum sharing, the number of site can decreased 25% maximum from total number which must be build. Economic analysis used three indicators i.e. Net Present Value (NPV), Incremental Rate of Return (IRR) and payback period used. From analysis result NPV more than zero, an IRR more than interest rate of Bank Indonesia.