A4 Vertaisarvioitu artikkeli konferenssijulkaisussa
Algebraic Hybrid Satellite-Terrestrial Space-Time Codes for Digital Broadcasting in SFN
Tekijät: Hollanti Camilla, Vehkalahti Roope, Nasser Youssef
Julkaisuvuosi: 2011
Journal: IEEE Workshop on Signal Processing Systems (SiPS)
Kokoomateoksen nimi: Signal Processing Systems (SIPS), 2011 IEEE Workshop on
Tietokannassa oleva lehden nimi: 2011 IEEE WORKSHOP ON SIGNAL PROCESSING SYSTEMS (SIPS)
Lehden akronyymi: IEEE WRK SIG PRO SYS
Aloitussivu: 234
Lopetussivu: 238
ISBN: 978-1-4577-1920-2
ISSN: 2162-3562
Tiivistelmä
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.
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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