Performance Analysis of Future Mobile Interactive Networks using an Advanced Air Interface Demonstrator

The shortage in the spectrum for mobile satellite services (MSS) motivated the idea to utilize fixed satellite services such as high throughput satellites (HTS) as support. In this paper, a flexible air interface demonstrator was developed in software and hardware on a SDR platform that enables the performance analysis of GEO satellites for future broadband mobile interactive networks. The demonstrator covers the forward and return link with DVB-S2x and DVB-RCS2 respectively, a full modem implementation as well as high power amplifier (HPA) non-linearities, phase noise, Doppler effects and tropospheric attenuation to create realistic system conditions. The investigated mobile scenarios include vehicular, train and aeronautic use-cases. The individual scenario performance using Adaptive coding and modulation (ACM) was measured in terms of frame error rate (FER), service availabilities and spectral efficiency