The increasing demand for general broadband Digital Broadcasting Services brings the need for more efficient transmission techniques, both in power and spectrum. Advanced decoding techniques allow more efficient resources utilisation without the need to modify the existing systems.
The main objective of the Advanced Decoding Algorithms for Satellite Broadcasting project was to validate a new decoding algorithm for the DVB-S standard and to check its practical feasibility and possible implementation alternatives.
Improvement of link budgets without modifying DVB-S standard by means of advanced decoding techniques based on soft decision information handling and iterativeness. More efficient resource utilisation.
The test modules and the decoder implemented consist of the following elements:
The project is split into:
Channel coding stage performances analysis to assess theoretical upper bounds (BER and WER) of the concatenated code and improvement margin estimation.
Trade-offs about performance versus implementation complexity. Selection of architecture and components for the iterative decoder.
VHDL models generation, simulation and implementation in FPGA test boards.