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arXiv · 1103.0484

Algebraic Hybrid Satellite-Terrestrial Space-Time Codes for Digital Broadcasting in SFN

Camilla Hollanti·Roope Vehkalahti·Youssef Nasser
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Abstract

Lately, different methods for broadcasting future digital TV in a single frequency network (SFN) have been under an intensive study. To improve the transmission to also cover suburban and rural areas, a hybrid scheme may be used. In hybrid transmission, the signal is transmitted both from a satellite and from a terrestrial site. In 2008, Y. Nasser et al. proposed to use a double layer 3D space-time (ST) code in the hybrid 4 x 2 MIMO transmission of digital TV. In this paper, alternative codes with simpler structure are proposed for the 4 x 2 hybrid system, and new codes are constructed for the 3 x 2 system. The performance of the proposed codes is analyzed through computer simulations, showing a significant improvement over simple repetition schemes. The proposed codes prove in addition to be very robust in the presence of power imbalance between the two sites.

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Camilla Hollanti, Roope Vehkalahti, Youssef Nasser. 2011-03-02. Algebraic Hybrid Satellite-Terrestrial Space-Time Codes for Digital Broadcasting in SFN. https://doi.org/10.1109/sips.2011.6088980

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