A hybrid C/Ku-band high throughput satellite systems as an optimal design for Indonesia

the internet and data traffic in Indonesia is still expected to grow [5]. As an archipelagic country this will be a demand for satellite broadband. Next generation satellite system needs to have both higher throughput and availability, whilst trying to reduce the cost per Mbps. To fulfill the demands and performance, a multi beam satellite system has to be implemented over the coverage area. The most manufactured High Throughput Satellite (HTS) are dominated by Ka-band and several systems provided with Ku-band solutions. Most of these systems use straight configuration such as Kasat [4] and Viasat or combination of Ka-Ku band for example IPStar. In Indonesia, as one of tropical countries, working on high frequency has to deal with propagation issue caused by rain attenuation. To keep the performance of the link, it is necessary to employ appropriate frequency. This paper presents the advantage of using C-band system station on the gateway site and the use of Ku-band spot beam on the user site, the combination of which will offer better performance and more economics than straight configuration ones. The system will be made by using Ku-band on the user site and a combination of C and Ku-band on the gateway site to improve the performance compared to an existing available HTS systems. This study has a significant impact for existing FSS operators, existing Ku-band user will enjoy the benefit of prodigious improvements in performance when this C/Ku-band HTS becomes available, then FSS operators in Indonesia will have an assurance to deploy in their network today with no worry of facing difficulties in upgrading their system.