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A novel Multiple Input Multiple Output (MIMO) transmitting scheme is presented for multi-beam satellite systems, where the objective is to increase the system sum rate, availability and variance performance. One of the fundamental problems in the satellite scenario for the applicability of the Multiple Input Multiple Output (MIMO) technology relates to the difficulty for generating independent fading profiles at the space segment. Placing multiple antennas in a single satellite does not seem a valid option in order to exploit the capabilities of the MIMO channel. Indeed, the absence of scatters in the vicinity of the satellite leads to an inherent rank deficiency of the MIMO channel matrix (i.e. all the antennas at the satellite are essentially seen from the same elevation at the terrestrial segment).
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