Performance Comparison and Analysis of Serial Concatenated Convolutional Codes
نویسندگان
چکیده
In this paper, the performance of three types of serial concatenated convolutional codes (SCCC) is compared and analyzed in additive white Gaussian noise (AWGN) channel. In Type I, only the parity bits of outer encoder are passed to inner encoder. In Type II and Type III, both the information bits and the parity bits of outer encoder are transferred to inner encoder. As results of simulation, Type I shows the best bit error rate (BER) performance at low signal-to-noise ratio (SNR). On the other hand, Type III shows the best BER performance at high SNR in AWGN channel. The simulation results are analyzed using the distance spectrum. Keywords—Distance spectrum, MAP algorithm, SCCC.
منابع مشابه
Serial Concatenated Convolutional Codes Design and Analysis
Serial Concatenated Convolutional Codes (SCCC) also named Turbo Codes, obtained with different constituent trellis codes are presented with a simple and quick mode of data interleaving. A SCC code has higher error-correction performances than the constituent codes. Optimal convolutional codes are deduced for SCCC. A comparison of the SCCC performances is made using weight enumerating functions.
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