A novel speech-like symbol design for data transmission through GSM voice channel

Author

Shahbazi, Ali ; Rezaie, Amir Hossein ; Sayadiyan, Abolghasem ; Mosayyebpour, Saeed

Author_Institution

Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran

fYear

2009

fDate

14-17 Dec. 2009

Firstpage

478

Lastpage

483

Abstract

This paper introduces a new approach to design speech-like (SL) symbols in order to transmit digital data through global system for mobile communications (GSM) voice channel. Using these symbols leads to design a GSM voice channel data modem to modulate and demodulate data on enhanced full rate voice codec. Designing a set of time-symbols is an offline procedure with the aim of minimizing symbol detection error. This modem could be useful in the situations where real-time data communication with high priority is needed. Data is encoded into SL symbols to be transmitted through GSM voice channel. At the receiver side, the received SL symbols are decoded back to data. We present a full procedure of symbols design and implement it in a real system. We achieved a bit rate of 2 kbps with 1.5 Ã— 10^-5 symbol error rate (SER) using the proposed method.

Keywords

cellular radio; codecs; data communication; error statistics; mobile communication; GSM voice channel; data transmission; mobile communications; real-time data communication; receiver side; speech like symbol design; symbol error rate; voice codec; Bandwidth; Bit rate; Codecs; Data communication; Delay; GSM; Ground penetrating radar; Modems; Quality of service; Speech synthesis; Enhanced full rate codec; GSM voice channel data modem; speech-like symbol;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology (ISSPIT), 2009 IEEE International Symposium on

Conference_Location

Ajman

Print_ISBN

978-1-4244-5949-0

Type

conf

DOI

10.1109/ISSPIT.2009.5407541

Filename

5407541