Citation
Abstract
This article describes a software package developed to simulate the performance of the byte-oriented Viterbi decoding algorithm for unit-memory (UM) codes on both 3-bit and 4-bit quantized AWGN channels. The simulation was shown to require negligible memory and less time than that for the RTMBEP algorithm, although they both provide similar performance in terms of symbol-error probability. This makes it possible to compute the symbol-error probability of large codes and to determine the signal-to-noise ratio required to achieve a bit error rate (BER) of 10-6 for corresponding concatenated systems. A (7, 10/48) UM code, 10-bit Reed-Solomon code combination was found to achieve the required BER at 1.08 dB for a 3-bit quantized channel and at 0.91 dB for a 4-bit quantized channel.
Details
- Volume
- 42-78
- Published
- August 15, 1984
- Pages
- 99–107
- File Size
- 416.7 KB