Multipath Effects on High-Frequency Coherent Acoustic Communications in Shallow Water SCIE SCOPUS

DC Field Value Language Son, Su-Uk - Kim, Hyeonsu - Joo, Jongmin - Choi, Jee Woong - 2020-04-20T05:40:27Z - 2020-04-20T05:40:27Z - 2020-01-28 - 2013-07 -
dc.identifier.issn 0021-4922 -
dc.identifier.uri -
dc.description.abstract Shallow-water acoustic communication channel, referred to as a multipath-limited channel, produces inter-symbol interference that poses a significant obstacle to reliable communication. Accordingly, signal-to-multipath ratio (SMR), rather than signal-to-noise ratio (SNR), becomes an important factor affecting communication performance. However, it is difficult to estimate SMR from measured communication data, especially at higher frequency (> 10 kHz) because many arrivals scattered from rough ocean boundaries produce a significant intrapath time spreading, which acts as random noise in communication. In this paper, the energy fraction of the channel impulse response existing in one symbol duration is proposed as a parameter for estimating the quality of shallow-water communication channels. This parameter is compared with the bit-error-rate performance for data acquired in shallow water off the south coast of Korea, where the water depth is 45 m and the bottom consists of sandy clay sediment. The results imply that the energy fraction in one symbol duration may be used as a parameter for describing shallow-water communication channels and applied to the quick decision of a symbol or bit rate in a shallow-water field for reliable underwater communication. (c) 2013 The Japan Society of Applied Physics -
dc.description.uri 1 -
dc.language English -
dc.publisher IOP PUBLISHING LTD -
dc.subject CHANNEL -
dc.subject VARIABILITY -
dc.subject SIMULATION -
dc.title Multipath Effects on High-Frequency Coherent Acoustic Communications in Shallow Water -
dc.type Article -
dc.citation.volume 52 -
dc.citation.number 7 -
dc.identifier.bibliographicCitation JAPANESE JOURNAL OF APPLIED PHYSICS, v.52, no.7 -
dc.identifier.doi 10.7567/JJAP.52.07HG03 -
dc.identifier.scopusid 2-s2.0-84880983487 -
dc.identifier.wosid 000322130800078 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus DECISION-FEEDBACK EQUALIZER -
dc.subject.keywordPlus EXPERIMENT KAUAIEX -
dc.subject.keywordPlus CHANNEL -
dc.subject.keywordPlus VARIABILITY -
dc.subject.keywordPlus SIMULATION -
dc.relation.journalWebOfScienceCategory Physics, Applied -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Physics -
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Marine Resources Research Division > Deep-sea Mineral Resources Research Center > 1. Journal Articles
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