ETD system

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Tesi etd-04092015-182704


Thesis type
Tesi di dottorato di ricerca
Author
MARCHETTI, LEONARDO
URN
etd-04092015-182704
Title
Physical Layer Techniques for Wireless Communication Systems
Settore scientifico disciplinare
ING-INF/03
Corso di studi
INGEGNERIA "L. DA VINCI"
Commissione
tutor Prof. Reggiannini, Ruggero
tutor Prof. Morelli, Michele
tutor Dott. Sanguinetti, Luca
Parole chiave
  • CFO
  • multicarrier
  • synchronization
  • underwater communications
Data inizio appello
03/05/2015;
Consultabilità
completa
Riassunto analitico
The increasing diffusion of mobile devices requiring, everywhere and every time, reliable connections able to support the more common applications, induced in the last years the deployment of telecommunication networks based on technologies capable to respond effectively to the ever-increasing market demand, still a long way off from saturation level.<br>Multicarrier transmission techniques employed in standards for local networks (Wi-Fi) and metropolitan networks (WiMAX) and for many years hot research topic, have been definitely adopted beginning from the fourth generation of cellular systems (LTE). The adoption of multicarrier signaling techniques if on one hand has brought significant advantages to counteract the detrimental effects in environments with particularly harsh propagation channel, on the other hand, has imposed very strict requirements on sensitivity to recovery errors of the carrier frequency offset (CFO) due to the resulting impact on correct signal detection.<br>The main focus of the thesis falls in this area, investigating some aspects relating to synchronization procedures for system based on multicarrier signaling. Particular reference will be made to a network entry procedure for LTE networks and to CFO recovery for OFDM, fltered multitone modulation and direct conversion receivers.<br>Other contributions pertaining to physical layer issues for communication systems,<br>both radio and over acoustic carrier, conclude the thesis.
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