Underwater acoustic receiver employing direct-sequence spread spectrum and spatial diversity combining for shallow-water multiaccess networking

This paper proposes an underwater adaptive-array receiver structure that utilizes direct-sequence code division multiple access and spatial diversity combining in order to achieve reliable low-data rate multiuser communication in an asynchronous shallow-water network. The performance of the proposed...

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Bibliographic Details
Published inIEEE journal of oceanic engineering Vol. 26; no. 4; pp. 594 - 603
Main Authors Tsimenidis, C.C., Hinton, O.R., Adams, A.E., Sharif, B.S.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2001
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bandwidth
Channels
Computational efficiency
Computer architecture
Diversity reception
Information rates
Marine
Mobile communication
Multiaccess communication
Networks
North Sea
Phased arrays
Receivers
Sea trials
Spread spectrum communication
Spreads
Summer
Underwater acoustics
Underwater communication
ANE, North Sea
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Summary:This paper proposes an underwater adaptive-array receiver structure that utilizes direct-sequence code division multiple access and spatial diversity combining in order to achieve reliable low-data rate multiuser communication in an asynchronous shallow-water network. The performance of the proposed receiver architecture has been verified by means of offline processing of data acquired during sea trials in the summer of 1999 in the North Sea. Results show that this computationally efficient structure is near-far resistant and provides successful multiuser operation in the shallow-water channel.
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ISSN:0364-9059
1558-1691
DOI:10.1109/48.972099