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Transmission parameters optimization and receiver architectures for DVB‐S2X systems
Author(s) -
Cioni Stefano,
Colavolpe Giulio,
Mig Vittoria,
Modenini Andrea,
Morello Alberto,
Ricciulli Michelangelo,
Ugolini Alessandro,
Zanettini Yuri
Publication year - 2015
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.1121
Subject(s) - computer science , baud , digital video broadcasting , transmission (telecommunications) , spectral efficiency , channel (broadcasting) , computer network , electronic engineering , telecommunications , engineering
Summary The second‐generation specification of the digital video broadcasting for satellite (DVB‐S2) was developed in 2003 with the aim of improving the existent broadcasting standard DVB‐S. The main new features introduced by DVB‐S2 included increased baud rates, higher cardinality constellations (up to 32 points), and more efficient binary codes. The extension to DVB‐S2, approved in 2014 with the name DVB‐S2X, together with continuous technological evolution, moves further steps in this direction, with the use of constellations with cardinality up to 256 points, improved granularity of modulation and coding schemes, and the possibility to increase the baud rate. In this scenario, it is important to be able to ascertain what is the best transceiver structure, starting from the choice of the shaping pulse and the baud rate of the transmitted signals and ending with the most promising receiver architectures, with the aim of maximizing the spectral efficiency. In this paper, we will discuss some of the aspects of this investigation, namely, the optimization of transmission parameters and the description of an efficient receiver. We will then assess the performance of the proposed scheme in comparison with a classical DVB‐S2 architecture. Some synchronization aspects will also be discussed, to account for the impairments introduced by the channel. Copyright © 2015 John Wiley & Sons, Ltd.