Using Short-Block turbo Codes for Telemetry and Command

摘要

The turbo code is a block coe even though a convolution encoder is used to construct codewords. Its performance depends on the code word length. Since the invention of the turbo code in 1993, most of the bit error rate (BER) evalautions have been performed using large block sizes, i.e., sizes greater than 1000, or even 10,000. However, for telemetry and command, a relatively short message (<500 bits) may be used. This paper ivnestigates the turbo-coded BER performance for short packets. Fading channel is also considered. In addition, biased biased channel side information is adopted to improve the performance.