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Abstract
Large variability of communication properties of underwater acoustic channels, and especially strongly varying instantaneous conditions in shallow waters, is a tough challenge for the designers of underwater acoustics communication (UAC system. There is a need for developing adaptive signaling schemes that would dynamically optimize signal parameters in both physical and link layers of communication protocols. The orthogonal frequency division multiplexing (OFDM) being a multi-carrier modulation technique applied successfully in the latest standards of wireless communications, seems to be the most promising. The paper reviews general features of UAC channels, describes their statistics-based transmission model applied in wireless system design, and presents communication test performed by the authors with the use of a laboratory model of an OFDM data transmission system in both static and moving configurations of a receiver in a shallow lake. The effectiveness of matching the OFDM signaling schemes, channel coding, and transmission frame structure to current channel conditions was tested.
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- Category:
- Monographic publication
- Type:
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Title of issue:
- Hydroacoustics of Shallow Water strony 209 - 226
- Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Kochańska I., Lasota H.: Testing OFDM Transmission Schemes for Shallow Water Acoustic Communications// Hydroacoustics of Shallow Water/ ed. Eugeniusz Kozaczka, Grażyna Grelowska Warszawa: Polish Academy of Sciences, Institute of Fundamental Technological Research, 2013, s.209-226
- Verified by:
- Gdańsk University of Technology
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