Simplified Metrics Calculation for Soft Bit Detection in DVB-T2
Abstrakt
The constellation rotation and cyclic quadrature component delay (RQD) technique has been adopted in the second generation terrestrial digital video broadcasting (DVB-T2) standard. It improves the system performance under severe propagation conditions, but introduces serious complexity problems in the hardware implementation of the detection process. In this paper, we present a simplified scheme that greatly reduces the complexity of the demapper by simplifying the soft bit metrics computation having a negligible overall system performance loss.
Klíčová slova
Demapper, DVB-T2, OFDM, rotated constellationTrvalý odkaz
http://hdl.handle.net/11012/36432Typ dokumentu
Recenzovaný dokumentVerze dokumentu
Finální verze PDFZdrojový dokument
Radioengineering. 2014, vol. 23, č. 1, s. 399-404. ISSN 1210-2512http://www.radioeng.cz/fulltexts/2014/14_01_0399_0404.pdf
Kolekce
- 2014/1 [64]