Title :
High performance coder: a possible candidate for the GSM half-rate system
Author :
Wu, Yuhang ; Hansen, Henrik B. ; Larsen, Knud J. ; Nielsen, Henrik ; Sorensen, John Aa
Author_Institution :
Telecom Denmark, Tastrup, Denmark
Abstract :
The authors describe their contribution to the ETSI (European Telecommunications Standards Institute) effort for a definition of a GSM (Group Special Mobile) standard half-rate coding system for the pan-European digital mobile cellular radio system. The system consists of a speech coder and a channel coder. An overview of the speech coding algorithm is given. The results from a study of the different versions of the speech coder are described. A two-stage channel coding scheme is presented, and the performance test results are shown. An overview of the DSP implementation, computational requirements, and memory usage is also presented
Keywords :
cellular radio; digital radio systems; digital signal processing chips; encoding; speech analysis and processing; standards; telecommunications computing; vocoders; DSP; ETSI; European Telecommunications Standards Institute; GSM standard; Group Special Mobile; channel coder; channel coding; computational requirements; digital mobile cellular radio system; half-rate coding system; memory usage; pan-European system; performance test results; speech coder; speech coding algorithm; Bit rate; Channel coding; Code standards; Digital signal processing; GSM; Speech analysis; Speech coding; Speech synthesis; Telecommunication standards; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150414
