Estimate of Passive Time Reversal Communication Performance in Shallow Water
DC Field | Value | Language |
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dc.contributor.author | Kim, Sunhyo | - |
dc.contributor.author | Son, Su-Uk | - |
dc.contributor.author | Kim, Hyeonsu | - |
dc.contributor.author | Choi, Kang-Hoon | - |
dc.contributor.author | Choi, Jee Woong | - |
dc.date.accessioned | 2021-06-22T12:22:45Z | - |
dc.date.available | 2021-06-22T12:22:45Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2018-01 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/6908 | - |
dc.description.abstract | Time reversal processes have been used to improve communication performance in the severe underwater communication environment characterized by significant multipath channels by reducing inter-symbol interference and increasing signal-to-noise ratio. In general, the performance of the time reversal is strongly related to the behavior of the q-function, which is estimated by a sum of the autocorrelation of the channel impulse response for each channel in the receiver array. The q-function depends on the complexity of the communication channel, the number of channel elements and their spacing. A q-function with a high side-lobe level and a main-lobe width wider than the symbol duration creates a residual ISI (inter-symbol interference), which makes communication difficult even after time reversal is applied. In this paper, we propose a new parameter, E-q, to describe the performance of time reversal communication. E-q is an estimate of how much of the q-function lies within one symbol duration. The values of E-q were estimated using communication data acquired at two different sites: one in which the sound speed ratio of sediment to water was less than unity and one where the ratio was higher than unity. Finally, the parameter E-q was compared to the bit error rate and the output signal-to-noise ratio obtained after the time reversal operation. The results show that these parameters are strongly correlated to the parameter E-q. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.title | Estimate of Passive Time Reversal Communication Performance in Shallow Water | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Jee Woong | - |
dc.identifier.doi | 10.3390/app8010023 | - |
dc.identifier.scopusid | 2-s2.0-85039543619 | - |
dc.identifier.wosid | 000424388800023 | - |
dc.identifier.bibliographicCitation | Applied Sciences-basel, v.8, no.1, pp.1 - 9 | - |
dc.relation.isPartOf | Applied Sciences-basel | - |
dc.citation.title | Applied Sciences-basel | - |
dc.citation.volume | 8 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Engineering, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | UNDERWATER ACOUSTIC COMMUNICATIONS | - |
dc.subject.keywordPlus | EXPERIMENT KAUAIEX | - |
dc.subject.keywordPlus | PHASE CONJUGATION | - |
dc.subject.keywordPlus | DATA-TRANSMISSION | - |
dc.subject.keywordPlus | CHANNELS | - |
dc.subject.keywordPlus | VARIABILITY | - |
dc.subject.keywordPlus | EQUALIZATION | - |
dc.subject.keywordPlus | DIVERSITY | - |
dc.subject.keywordAuthor | underwater acoustic communication | - |
dc.subject.keywordAuthor | passive time reversal | - |
dc.subject.keywordAuthor | q-function | - |
dc.subject.keywordAuthor | E-q | - |
dc.identifier.url | https://www.mdpi.com/2076-3417/8/1/23 | - |
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