Error protection to IS-96 variable rate CELP speech coding

Author

Li, Sue-Jean ; Yang, Min-Chin ; Chang, Pao-Chi ; Wang, Hong Shen

Author_Institution

Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan

Volume

3

fYear

1996

fDate

15-18 Oct 1996

Firstpage

1014

Abstract

IS-96 describes a variable rate code-excited linear prediction (CELP) speech coder in code division multiple access (CDMA) digital cellular environment. In this work we focus on the study of the error protection methods in CDMA cellular environments. We find that although the error protection technique described in IS-96 can improve the speech quality in noisy channels considerably, the error concealment effect in IS-96 can be further improved by a better bit protection pattern without increasing the processing complexity

Keywords

BCH codes; cellular radio; code division multiple access; digital radio; error correction codes; error detection codes; forward error correction; linear predictive coding; speech coding; variable rate codes; CDMA; CELP speech coding; IS-96; bit protection pattern; code division multiple access; digital cellular radio; error concealment effect; error protection; noisy channels; speech quality; variable rate code-excited linear prediction; Bit error rate; Electronics industry; Error correction; Forward error correction; Multiaccess communication; Protection; Speech analysis; Speech codecs; Speech coding; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on

Conference_Location

Taipei

Print_ISBN

0-7803-3692-5

Type

conf

DOI

10.1109/PIMRC.1996.568435

Filename

568435