Truncated Importance Sampling Simulation Applied to a Turbo Coded Communication System
The authors present and demonstrate an efficient method to estimate the bit error rate (BER) of turbo codes via a truncated importance sampling (TIS). The TIS method is based on the relevant code words that effectively contribute to the total BER. In order to find out these code words, a fast algorithm is proposed. Two examples are presented to describe the TIS method. The method is particularly effective at high signal to noise ratio (SNR), where Monte Carlo (MC) simulation takes too much time to obtain an estimative that is statistically sound.
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