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IEICE TRANSACTIONS on Information

An Iterative Joint Source-Channel (De-)Coding and (De-)Modulation Algorithm for G.729EV in Ultrashort Wave Communication

Tan PENG, Xiangming XU, Huijuan CUI, Kun TANG, Wei MIAO

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Summary :

Improving the overall performance of reliable speech communication in ultrashort wave radios over very noisy channels is of great importance and practical use. An iterative joint source-channel (de-)coding and (de-)modulation (JSCCM) algorithm is proposed for ITU-T Rec.G.729EV by both exploiting the residual redundancy and passing soft information throughout the receiver while introducing a systematic global iteration process. Being fully compatible with existing transmitter structure, the proposed algorithm does not introduce additional bandwidth expansion and transmission delay. Simulations show substantial error correcting performance and synthesized speech quality improvement over conventional separate designed systems in delay and bandwidth constraint channels by using the JSCCM algorithm.

Publication
IEICE TRANSACTIONS on Information Vol.E91-D No.12 pp.2897-2901
Publication Date
2008/12/01
Publicized
Online ISSN
1745-1361
DOI
10.1093/ietisy/e91-d.12.2897
Type of Manuscript
LETTER
Category
Speech and Hearing

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