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A 2 \times 2 MIMO DVB-T2 System: Design, New Channel Estimation Scheme and Measurements With Polarization Diversity

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4 Author(s)
Gomez-Calero, C. ; Dept. of Signals, Univ. Politec. de Madrid, Madrid, Spain ; Navarrete, L.C. ; de Haro, L. ; Martinez, R.

The increasing interest in MIMO (Multiple-Input Multiple-Output) systems has given rise to a prolific research activity in recent years. Both theoretical and practical issues have been studied. However, so far few MIMO testbeds or prototypes have been built for DVB-T or future standards. In this paper, a novel 2 × 2 MIMO testbed specifically designed for evaluating the performances of a DVB-T2 MIMO system is presented. The description of signal processing is detailed including a new scheme to estimate the MIMO channel matrix. Finally, measurement results with different polarization schemes are presented for typical scenarios, obtaining higher capacity in LoS situations using polarization diversity.

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Broadcasting, IEEE Transactions on  (Volume:56 ,  Issue: 2 )