Overcomplete source expansion aided, soft-bit assisted speech transceiver
Channel coding; Decoding; Discrete Fourier transforms; Expansion; Redundancy; Speech communication; Turbo codes; White noise; Additive white Gaussian noise channel; Channel decoding; Frame expansion; Joint source-channel coding; Overcomplete expansions; Residual redundancy; Soft decoding; Soft-input...
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Institute of Electrical and Electronics Engineers Inc.
2023
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my.uniten.dspace-222652023-05-29T13:59:55Z Overcomplete source expansion aided, soft-bit assisted speech transceiver Arifin N.F.B.T. Othman N.S. Ahmed A.M. 56950360400 56426823300 56949636200 Channel coding; Decoding; Discrete Fourier transforms; Expansion; Redundancy; Speech communication; Turbo codes; White noise; Additive white Gaussian noise channel; Channel decoding; Frame expansion; Joint source-channel coding; Overcomplete expansions; Residual redundancy; Soft decoding; Soft-input soft-output decoders; Gaussian noise (electronic) This paper presents a scheme that invokes jointly optimized source and channel decoding, which exploits the redundancy imposed by the overcomplete expansion scheme. More explicitly, a structured redundancy based on discrete Fourier transform (DFT) is inserted to the speech signal prior to source encoding. At the receiver the soft-input soft-output (SISO) decoder exploits the source index correlation for error protection. Furthermore, the explicit redundancy introduced in the speech signal is exploited to reconstruct the received voice signal with the aid of pseudo-inverse of the overcomplete block transform. The performance of the proposed scheme is evaluated when communicating over Additive White Gaussian Noise (AWGN) channel. The specific scheme using an overall code rate of 1/2 benefitted from the exploitation of the residual redundancy with about 0.4 dB Eb/N0 gain to its corresponding hard speech decoding based counterpart. � 2014 IEEE. Final 2023-05-29T05:59:55Z 2023-05-29T05:59:55Z 2015 Conference Paper 10.1109/ISTT.2014.7238229 2-s2.0-84946594129 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946594129&doi=10.1109%2fISTT.2014.7238229&partnerID=40&md5=424c4247b067d81197fd130fa4ebb6e0 https://irepository.uniten.edu.my/handle/123456789/22265 7238229 326 329 Institute of Electrical and Electronics Engineers Inc. Scopus |
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| description |
Channel coding; Decoding; Discrete Fourier transforms; Expansion; Redundancy; Speech communication; Turbo codes; White noise; Additive white Gaussian noise channel; Channel decoding; Frame expansion; Joint source-channel coding; Overcomplete expansions; Residual redundancy; Soft decoding; Soft-input soft-output decoders; Gaussian noise (electronic) |
| author2 |
56950360400 |
| author_facet |
56950360400 Arifin N.F.B.T. Othman N.S. Ahmed A.M. |
| format |
Conference Paper |
| author |
Arifin N.F.B.T. Othman N.S. Ahmed A.M. |
| spellingShingle |
Arifin N.F.B.T. Othman N.S. Ahmed A.M. Overcomplete source expansion aided, soft-bit assisted speech transceiver |
| author_sort |
Arifin N.F.B.T. |
| title |
Overcomplete source expansion aided, soft-bit assisted speech transceiver |
| title_short |
Overcomplete source expansion aided, soft-bit assisted speech transceiver |
| title_full |
Overcomplete source expansion aided, soft-bit assisted speech transceiver |
| title_fullStr |
Overcomplete source expansion aided, soft-bit assisted speech transceiver |
| title_full_unstemmed |
Overcomplete source expansion aided, soft-bit assisted speech transceiver |
| title_sort |
overcomplete source expansion aided, soft-bit assisted speech transceiver |
| publisher |
Institute of Electrical and Electronics Engineers Inc. |
| publishDate |
2023 |
| _version_ |
1806428495287418880 |