NDLI: Discrete multi-tone loading algorithms for underwater acoustic communication

Content Provider	IEEE Xplore Digital Library
Author	Saraswathi, K. Ravishankar, S.
Copyright Year	2014
Description	Author affiliation: Dept. of ECE, R.V.Coll. of Eng., Bangalore, India (Saraswathi, K.; Ravishankar, S.)
Abstract	Underwater acoustic (UWA) channel is characterized as a severe multipath propagation channel due to signal reflections from the surface and bottom of the sea, that is affected by a variety of ambient noise profiles unique to underwater environment. Further the motion of water introduces a Doppler. Multicarrier modulation schemes can be adapted to meet a given Quality of service (QoS) in such environments. In this paper the underwater acoustic channel is modelled using the Thorp and Ainslie-McColm models for absorption and their limitations are analyzed. Signal to noise ratio (SNR) profiles at various distances employing Discrete Multitone Modulation (DMT) are obtained considering different types of ambient noise sources such as shipping, wind, thermal, bubble and turbulence. To meet the QoS different Rate Adaptive and Margin Adaptive Tone loading algorithms are simulated and compared based on system margin, utilizing these SNR profiles.
Starting Page	821
Ending Page	827
File Size	2127667
Page Count	7
File Format	PDF
ISBN	9781479930784
e-ISBN	9781479930807
DOI	10.1109/ICACCI.2014.6968508
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-24
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Algorithm design and analysis Adaptation models Underwateracousticcommunication(UWAC) Signal-to-Noise Ratio(SNR) Rateadaptive(RA) Bismuth Discrete Multitone(DMT) Acoustics Marginadaptive(MA)
Content Type	Text
Resource Type	Article

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