Estimation of the number of reliability values needed for correction of long soft input decryption, blocks

This paper presents an estimation of the number of reliability or so called L-values which are needed for correction of long Soft Input Decryption blocks. Soft Input Decryption is a novel method which uses L-values (soft output) of a SISO channel decoder for the correction of input of Soft Input Decryption (SID blocks) which have been modified during the transmission over a noisy channel. The method is based on the combination of cryptography and channel coding improving characteristics of both of them. The number of L-values is estimated for different lengths of SID blocks as well as for different E
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ratios.