Title :
Characterization of error sequences in UHF digital mobile radio channels
Author :
Semmar, Assia ; Lecours, Michel ; Chouinard, Jean-Yves ; Ahern, John
Author_Institution :
Dept. of Electr. Eng., Laval Univ., Que., Canada
fDate :
11/1/1991 12:00:00 AM
Abstract :
A statistical characterization of transmission errors for digital mobile radio links at 910 MHz in different types of urban areas is presented. Error sequences for messages of 2-s duration at a nominal rate of 20-kb/s for binary-phase-shift-keying (BPSK) demodulated transmissions have been obtained and characterized by Fritchman´s channel model, including one error state and two to four error-free states. In the data analyzed, no trend has been observed in the Fritchman parameter as a function of the type of area or of vehicle speed. Typical Fritchman´s parameters are established for low and intermediate error rate channels (on the order of 10-3 and 10 -2 error rates) and for higher error rate channels. Results are also presented for a limited sample of quadrature-phase-shift-keying (QPSK) demodulated 40-kb/s transmissions
Keywords :
digital radio systems; error statistics; mobile radio systems; phase shift keying; 20 kbit/s; 40 kbit/s; 910 MHz; BPSK; Fritchman´s channel model; QPSK; UHF; binary-phase-shift-keying; digital mobile radio links; error sequences; quadrature-phase-shift-keying; statistical characterization; transmission errors; urban areas; Base stations; Binary phase shift keying; Clocks; Error analysis; Frequency; Land mobile radio; Oscillators; Quadrature phase shift keying; Stability; Urban areas;
Journal_Title :
Vehicular Technology, IEEE Transactions on
