NDLI: Adaptive acoustic underwater communications based on generalized multi-carrier interleave-division multiplexing

Content Provider	IEEE Xplore Digital Library
Author	Hoeher, P.A.
Copyright Year	2009
Description	Author affiliation: ComSupport GbR, D-24226 Heikendorf, Germany (Hoeher, P.A.)
Abstract	In this contribution, an adaptive underwater acoustic modem with high bandwidth and power efficiency is proposed. Key features include interleave-division multiplexing (IDM) in time and frequency domain (and optionally in the spatial domain) in conjunction with generalized (non-orthogonal) multi-carrier (MC) transmission. IDM is a special form of superposition coded modulation. At the receiver side, joint intersymbol interference (ISI) and adjacent channel interference (ACI) cancellation is performed, in addition to iterative decoding. Adaptation (with respect to variable data rates, variable signal power, variable signal bandwidth, variable range, variable channel conditions, variable service requirements, etc.) is supported to an extend, which is currently unknown in the area of underwater communications. The communication signal can be used for navigation/positioning purposes without modification at the transmitter side. The system design is easily applicable in underwater networks, and extendable to an arbitrary number of transducers (MIMO processing). The modem is implemented by means of software-defined radio. A wide range of potential applications is targeted.
Starting Page	1
Ending Page	7
File Size	637757
Page Count	7
File Format	PDF
ISBN	9781424425228
DOI	10.1109/OCEANSE.2009.5278334
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-11
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Underwater acoustics Underwater communication Modems Bandwidth Intersymbol interference Frequency domain analysis Modulation coding Interchannel interference Interference cancellation Iterative decoding
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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