The implementation of the mobile channel simulator in the baseband and its application to the quadrature type GMSK modem design

Author

Lim, Myoung ; Park, Han

Author_Institution

Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

1990

fDate

6-9 May 1990

Firstpage

496

Lastpage

500

Abstract

The baseband fading channel simulator configuration implemented using the TMS320C25 digital signal processor, ADC and DAC, is described. The Rayleigh envelope statistics, such as power spectrum, level crossing rate (LCR), cumulative distribution function (CDF), and probability density function (PDF), are compared respectively to the theoretical prediction at several varying vehicle speeds. When channel simulation is applied to the quadrature-type Gaussian minimum shift-keying (GMSK) with a data transmission rate of 16 kbit/s, the bit error rate (BER) is measured and compared with the theoretical value of the GMSK with the discriminator detection method

Keywords

fading; minimum shift keying; mobile radio systems; modems; telecommunication channels; 16 kbit/s; ADC; BER; DAC; PDF; Rayleigh envelope statistics; TMS320C25 digital signal processor; baseband fading channel simulator; bit error rate; cumulative distribution function; data transmission rate; level crossing rate; mobile channel simulator; power spectrum; probability density function; quadrature GMSK modem; vehicle speeds; Additive noise; Baseband; Bit error rate; Doppler shift; Frequency; Mobile communication; Modems; Rayleigh channels; Signal design; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1990 IEEE 40th

Conference_Location

Orlando, FL

ISSN

1090-3038

Type

conf

DOI

10.1109/VETEC.1990.110372

Filename

110372