Modeling and performance evaluation of mobile VHF radio channels employing FSK, DPSK, QPSK and 8-ary PSK as modulation scheme

The authors present the results of experiments undertaken to find suitable models for mobile VHF channels. The experiments were carried out using four different modulation schemes at different signaling rates. The experiments were undertaken for urban as well as freeway driving. Fritchman partitioned Markov chain models were applied throughout and from the models, block error probability distributions were derived. These block error probability distributions, or P(m,n), given the probability that a block of n transmitted bits will contain exactly m errors. P(m,n)´s are presented for 7-, 15-, and 31-b blocks for the four modulation schemes