Speech coding in mobile radio communications

Author

Budagavi, Madhukar ; Gibson, Jerry D.

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

86

Issue

7

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1402

Lastpage

1412

Abstract

Speech coding, the efficient representation of speech in digital form, is one of the key technologies in current and evolving digital cellular and wireless voice communications offerings. The speech coders in existing standards exhibit a level of sophistication and performance unimaginable just 15 years ago. We outline the characteristics of the mobile communications problem with respect to speech coders and point out the principal issues in speech coder design for these applications. Speech coding methods in existing mobile communications standards are described and contrasted. The limitations imposed by the wireless channel and by background impairments are discussed, and approaches to addressing their resulting effects are presented. Suggestions for future research in speech coding for the mobile communications problem are outlined

Keywords

cellular radio; code standards; digital radio; land mobile radio; speech coding; telecommunication standards; background impairments; digital cellular communications; mobile communications standards; mobile radio communications; speech coders; speech coding; wireless channel; wireless voice communications; Communication standards; Delay effects; Digital signal processing; Land mobile radio; Mobile communication; Signal processing algorithms; Speech analysis; Speech coding; Standards development; Wireless communication;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.681370

Filename

681370