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Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/72614
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dc.titleEstimating unreliable packets in subband coded speech
dc.contributor.authorWong, W.C.
dc.contributor.authorSeshadri, N.
dc.contributor.authorSundberg, C.-E.W.
dc.date.accessioned2014-06-19T05:10:02Z
dc.date.available2014-06-19T05:10:02Z
dc.date.issued1990
dc.identifier.citationWong, W.C.,Seshadri, N.,Sundberg, C.-E.W. (1990). Estimating unreliable packets in subband coded speech. IEEE Global Telecommunications Conference and Exhibition 3 : 1979-1983. ScholarBank@NUS Repository.
dc.identifier.isbn0879426322
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/72614
dc.description.abstractA robust digital mobile radio communication system using 12-kb/s embedded subband speech coding and rate-compatible punctured convolutional (RCPC) codes with generalized Viterbi decoding for combined error detection and correction is examined. Unreliable subband-coded speech side-information is identified and replaced using various estimation strategies. By using a realistic simulation model with 4-DPSK (differential phase-shift keying) modulation over a mobile channel, improvements of 1 to 4.4 dB in recovered speech segmental SNR (signal-to-noise ratio) are obtained compared to a system with only channel-based error correction. Informal subjective tests support these gains.
dc.sourceScopus
dc.typeConference Paper
dc.contributor.departmentELECTRICAL ENGINEERING
dc.description.sourcetitleIEEE Global Telecommunications Conference and Exhibition
dc.description.volume3
dc.description.page1979-1983
dc.description.codenCRIEE
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Staff Publications

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