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

Ribas Oliva, Jordi

Softcover

ISBN 10: 3843388970 ISBN 13: 9783843388979

Publisher: 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.

About this title

About the Author

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.

Edition details

• Publisher: LAP LAMBERT Academic Publishing
• Publication date: 2011
• Language: English
• ISBN 10: 3843388970
• ISBN 13: 9783843388979
• Binding: Paperback
• Number of pages: 132