The approach of transmission scheme in wireless cipher communication

This paper examines a cipher system for security in tactical network, plus an interleaving scheme is applied to the ciphered information to enhance the transmission performance over a fading channel. Experimental results showed that the BER performance of the proposed efficient interleaving scheme is higher than that of the fixed interleaving depth scheme. Of particular note is that the dynamic allocation algorithm (DAA, non-fixed interleaving depth) reduces degraded error bits by up to 53%, compared with static allocation algorithm (SAA, fixed interleaved depth) of depth 120 in 420MHz.