Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 1990 IEEE 40th
Conference_Location :
Orlando, FL
DOI :
10.1109/VETEC.1990.110372
