Underwater Wireless Video Transmission using Acoustic OFDM: An experimental approach to the transmission and reception of OFDM signals for real-time video communication - Couverture souple

Ribas Oliva, Jordi

 
9783843388979: Underwater Wireless Video Transmission using Acoustic OFDM: An experimental approach to the transmission and reception of OFDM signals for real-time video communication
Couverture souple
ISBN 10 : 3843388970 ISBN 13 : 9783843388979
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

The feasibility of underwater wireless video transmission using an acoustic multicarrier system for applications such as deep-sea supervisory control and inspection is discussed and proved. Such a system is of interest over short distance links, with short delays and high available bandwidth, as near real time imagery can be transmitted to monitor targeted underwater spots. This work includes three parts: (1) underwater channel study to determine necessary power levels and frequency allocation, (2) video compression to reduce the amount of data to be transmitted through the channel, and (3) OFDM modulation to achieve high bit rates over the underwater link. Experimental testing was conducted at the MIT Sailing Pavilion premises, in the Charles River, Boston. The results demonstrate the usefulness of the coupled MPEG-4 compression and OFDM modulation, reaching bit rates on the order of 90 kbps in a 115 kHz acoustic band over a 200-meter link under a variety of channel conditions.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

The feasibility of underwater wireless video transmission using an acoustic multicarrier system for applications such as deep-sea supervisory control and inspection is discussed and proved. Such a system is of interest over short distance links, with short delays and high available bandwidth, as near real time imagery can be transmitted to monitor targeted underwater spots. This work includes three parts: (1) underwater channel study to determine necessary power levels and frequency allocation, (2) video compression to reduce the amount of data to be transmitted through the channel, and (3) OFDM modulation to achieve high bit rates over the underwater link. Experimental testing was conducted at the MIT Sailing Pavilion premises, in the Charles River, Boston. The results demonstrate the usefulness of the coupled MPEG-4 compression and OFDM modulation, reaching bit rates on the order of 90 kbps in a 115 kHz acoustic band over a 200-meter link under a variety of channel conditions.

Biographie de l'auteur

Jordi Ribas Oliva received his M.S. and B.S. degrees in Electrical Engineering from the Politechnical University of Catalonia in 2009. He completed his Master?s thesis at the Massachusetts Institute of Technology, where his work focused on designing and implementing software to be used by the next generation of autonomous underwater vehicles.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
3843388970
ISBN 13 
9783843388979
Reliure
Broché
Nombre de pages
132
Coordonnées du fabricant
non disponible
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