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Joint channel estimation and data recovery for high-rate underwater acoustic communications with multi-carrier modulation

Published: 30 September 2010 Publication History

Abstract

Multi-carrier modulation (MCM) has a significant potential for achieving high bit rates over multipath-distorted (frequency selective) channels and provides both power and processing efficiency. Each frequency channel has relatively low delay spread when measured in symbol units and can be equalized with low-complexity algorithms and simplified array processing. The reduction of the ISI span in each sub-channel allows for the application of sophisticated soft decision decoders optimal for joint channel estimation and data recovery such as maximum-likelihood sequence detectors (MLSD) and adaptive BCJR MAP algorithm. The combination of pre-processing channel response-shortening equalization and joint channel and data recovery were tested in shallow water acoustic communications experiments and showed very good performance.

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  • (2017)Receiver design for spread-spectrum communications with a small spread in underwater clustered multipath channelsThe Journal of the Acoustical Society of America10.1121/1.4977747141:3(1627-1642)Online publication date: 9-Mar-2017

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  1. Joint channel estimation and data recovery for high-rate underwater acoustic communications with multi-carrier modulation

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    cover image ACM Conferences
    WUWNet '10: Proceedings of the 5th International Workshop on Underwater Networks
    September 2010
    105 pages
    ISBN:9781450304023
    DOI:10.1145/1868812
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 30 September 2010

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    Author Tags

    1. MAP
    2. MLSD
    3. equalization
    4. inter-symbol interference
    5. multi-carrier modulation
    6. signal processing
    7. underwater acoustic communication

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    WUWNET '10: Workshop on Underwater Networks
    September 30 - October 1, 2010
    Massachusetts, Woods Hole

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    • (2017)Receiver design for spread-spectrum communications with a small spread in underwater clustered multipath channelsThe Journal of the Acoustical Society of America10.1121/1.4977747141:3(1627-1642)Online publication date: 9-Mar-2017

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