Proposal for a New Sub-Optimal Decoding Algorithm for Block Codes in 8-PSK and 16-PSK Constellations

This is an extension algorithm previously presented in [1] for decoded modulation systems with block codes for 8-PSK and 16-PSK constellations. The proposed algorithm presents a search mechanism of the least reliable points from the first code array and generate vectors for the Modified BCM, ZNA decoder, described in [1]. It is also presented a mapping of the 8-PSK and 16-PSK constellations in BPSK so the Modified ZNA could get the relevant results. Finally computer simulated results are compared for the 8-PSK and 16-PSK constellations, acquired from the sub-optimal algorithm proposed (Viterbi for BCM and MLD).