Using powerful “turbo” codes for 14.4 kbit/s data service in GSM or PCS systems

Author

Hindelang, Thomas ; Haller, Norbert ; Riedel, Sven ; Xu, Wen

Author_Institution

Dept. of Commun. Eng., Tech. Univ. Munchen, Germany

Volume

2

fYear

1997

fDate

3-8 Nov 1997

Firstpage

649

Abstract

The current maximum user data rate in GSM is 9.6 kbit/s per time slot. To increase the rate to 14.4 kbit/s by puncturing the code bits which are generated by the same convolutional coding scheme used for GSM 12.0 kbit/s, may result in a loss of about 2 dB and is not practicable in many situations. In this paper, a scheme based on “turbo” codes is introduced for the GSM 14.4 kbit/s data service. Our study indicates that the new approach can achieve almost the same performance as the GSM 12.0 kbit/s standard. Contrary to the common belief we have shown that the complexity increases less, if a new decoding algorithm for high code rates is used. Furthermore, this new coding scheme can be implemented in a currently available DSP for mobile communication

Keywords

cellular radio; computational complexity; concatenated codes; convolutional codes; data communication; decoding; interleaved codes; personal communication networks; 14.4 kbit/s; GSM data service; PCS systems; convolutional coding; decoding algorithm; high code rates; mobile communication; turbo codes; Convolution; Convolutional codes; Data communication; Delay; Frequency; GSM; Iterative decoding; Mobile communication; Personal communication networks; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-4198-8

Type

conf

DOI

10.1109/GLOCOM.1997.638410

Filename

638410