Frequency Band Analysis and Spectrum Pricing for High Throughput Satellite in Indonesia

Ku-band and Ka-band are frequency bands that are widely used for high throughput satellites, in Indonesia Ku-band have been used in several types of satellite services to support bandwidth limitations in the C-band. For this reason, a comparative study of Ku-band and Ka-band was carried out to ensure that the two frequency bands can be used in Indonesia's tropical climate and further evaluate the existing regulations for the implementation of HTS in Indonesia. The results of this study show that Ku-band and Ka-band can be used for HTS satellites in Indonesia. All communication links tested showed C/N values higher than the minimum requirements of C/N. Although both frequency bands can use in Indonesia, in terms of economy and efficiency, Ka-band is greater than Ku-band, the availability of wide bandwidth makes the throughput produced by Ka-band more than Ku-band. Capacity measurement simulation is also carried out with two frequency reuse schemes where higher throughput is present at 8 spot beams per cluster scheme. The scenario requires at least nine times frequency reuse to cover the entire region of Indonesia with total throughput on Ka-band 123.02 Gbps under normal sky conditions and 55.56 Gbps under rain sky conditions. The regulation review process resulted in suggestions for changes to the bandwidth cost index to be used in setting spectrum prices for the use of HTS. The need for this change is based on the consideration that bandwidth cost index was previously the base price for satellite transponders with a small bandwidth and HTS satellites are sensitive bandwidth technology.