Evaluation of block error probability of trellis codes
Hiroshi Yamamoto, Toru Fujiwara, Toyoo Takata, Tadao Kasami · Electronics and Communications in Japan (Part III Fundamental Electronic Science) · 1995
Abstract An efficient method is proposed to evaluate the block error probability of trellis codes. the notion of correct state on the most likely paths in Viterbi decoding on additive white Gaussian noise (AWGN) channels is introduced. the probability that a state is correct and the probability that the state following a correct state is also correct are evaluated by simulation. These probabilities do not depend on block length. Then the block error probability for any given block length is estimated by simple calculation from the forementioned probabilities. This method is applied for some specific 8‐PSK Ungerboeck codes with 24, 25, and 26 states. the results show that the values obtained by this method are very close to those by simulation. It is concluded that this method is very effective.