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Time Diversity in Mobile DVB-T2 Systems

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4 Author(s)
David Gozalvez ; Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM) of the Universidad Politécnica de Valencia ; David Gomez-Barquero ; David Vargas ; Narcís Cardona

DVB-T2 implements a very flexible time interleaving that allows multiple tradeoffs in terms of time diversity, latency and power saving. In this paper, we study in detail these tradeoffs in the context of mobile reception. Together with time diversity, we also investigate the impact of reduced time de-interleaving memory and Alamouti-based MISO in the mobile reception of DVB-T2 services. In addition, we propose the utilization of upper layer FEC protection in order to overcome the limitations of the DVB-T2 physical layer for the provision of long time interleaving, and enable fast zapping. The performance is evaluated by means of simulations in mobile channels that include the presence of fast fading and shadowing in the received signal.

Published in:

IEEE Transactions on Broadcasting  (Volume:57 ,  Issue: 3 )