Reference : Forward Link Optimization for the Design of VHTS Satellite Networks
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
Forward Link Optimization for the Design of VHTS Satellite Networks
Ortiz Gomez, Flor de Guadalupe mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Martinez, Ramon mailto [Universidad Politecnica de Madrid]
Salas-Natera, Miguel A. mailto [Universidad Politecnica de Madrid]
Cornejo, Andres mailto [Universidad Nacional Autonoma de Mexico]
Landeros, Salvador mailto []
Multidisciplinary Digital Publishing Institute (MDPI)
Yes (verified by ORBilu)
[en] mutibeam satellite ; cost per Gbps in orbit ; Satellite communications
[en] The concept of geostationary VHTS (Very High Throughput Satellites) is based on multibeam coverage with intensive frequency and polarization reuse, in addition to the use of larger bandwidths in the feeder links, in order to provide high capacity satellite links at a reduced cost per Gbps in orbit. The dimensioning and design of satellite networks based on VHTS imposes the analysis of multiple trade-offs to achieve an optimal solution in terms of cost, capacity, and the figure of merit of the user terminal. In this paper, we propose a new method for sizing VHTS satellite networks based on an analytical expression of the forward link CINR (Carrier-to-Interference-plus-Noise Ratio) that is used to evaluate the trade-off of different combinations of system parameters. The proposed method considers both technical and commercial requirements as inputs, including the constraints to achieve the optimum solution in terms of the user G/T, the number of beams, and the system cost. The cost model includes both satellite and ground segments. Exemplary results are presented with feeder links using Q/V bands, DVB-S2X and transmission methods based on CCM and VCM (Constant and Variable Coding and Modulation, respectively) in two scenarios with different service areas.

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