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EnglishMulticarrier modulations have several advantages, allowing them to be adopted in a large number of communication systems; one of their drawbacks is that they are particularly affected by non-linear distortion, typical of power-constrained systems. Among several multicarrier communication systems, the single-carrier frequency division multiple access (SC-FDMA) is gaining an increasing interest in the satellite area due to its usage in the DVB-NGH, and the research efforts in DVB-TM-RCS2 and DVB-TM-S2. In this paper we consider the application of single-carrier frequency division multiple access (SC-FDMA) to satellite communications, by investigating the effect of different mapping schemes in terms of both in-band distortion and out-of-band spectral regrowth when a non-linear amplifier is present in the transmit equipment. The outcomes of this analysis demonstrate that a mapping based on Minimum Shift Keying (MSK) outperforms the conventional QPSK mapping in terms of resilience to non-linear distortion.
| Titolo: | Robust SC-FDMA subcarrier mapping for non-linear channels | |
| Autore/i: | CANDREVA, ENZO ALBERTO; TARCHI, DANIELE; VANELLI CORALLI, ALESSANDRO; CORAZZA, GIOVANNI EMANUELE | |
| Autore/i Unibo: | ||
| Anno: | 2014 | |
| Titolo del libro: | 2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC) | |
| Pagina iniziale: | 360 | |
| Pagina finale: | 365 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/ASMS-SPSC.2014.6934568 | |
| Abstract: | Multicarrier modulations have several advantages, allowing them to be adopted in a large number of communication systems; one of their drawbacks is that they are particularly affected by non-linear distortion, typical of power-constrained systems. Among several multicarrier communication systems, the single-carrier frequency division multiple access (SC-FDMA) is gaining an increasing interest in the satellite area due to its usage in the DVB-NGH, and the research efforts in DVB-TM-RCS2 and DVB-TM-S2. In this paper we consider the application of single-carrier frequency division multiple access (SC-FDMA) to satellite communications, by investigating the effect of different mapping schemes in terms of both in-band distortion and out-of-band spectral regrowth when a non-linear amplifier is present in the transmit equipment. The outcomes of this analysis demonstrate that a mapping based on Minimum Shift Keying (MSK) outperforms the conventional QPSK mapping in terms of resilience to non-linear distortion. | |
| Data stato definitivo: | 15-ott-2016 | |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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http://hdl.handle.net/11585/514550
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