摘要 : Estimation of Viterbi decoder performance over channels withtime-varying received signal levels is the subject of this paper. Thiswork is motivated by a desire to obtain good estimates of the frameerror rate (FER) for convolutiona... 展开 Estimation of Viterbi decoder performance over channels withtime-varying received signal levels is the subject of this paper. Thiswork is motivated by a desire to obtain good estimates of the frameerror rate (FER) for convolutional codes with bit-level interleavingover fading channels subject to practical power control algorithms. Theconvolutional code performance is quantified through the FER andeffective Eb/N0. where the latter is defined asthe Eb/N0 on an additive white Gaussian noise(AWGN) channel that results in the same FER. Given a received vector of(time-varying) Eb/N0 values, we compute analyticestimates for the probability of frame error and the effective Eb/N0 for a Viterbi decoder and interleaver combination.In particular, we validate our analysis using the R=1/3 convolutionalcode and interleaver used on the IS-95 CDMA reverse channel. Comparisonswith simulations show that even for Eb/N0 vectorswith very large variations, our proposed estimates are good to within0.2 dB for the effective Eb/N0, giving FERestimates within a factor of two-five of the simulations 收起