engOrtin, J.Garcia, P.Gutierrez, F.Valdovinos, A.Two Step SOVA-Based Decoding Algorithm for Tailbiting CodesART-2009-65812Abstract—In this work we propose a novel decoding algorithm for tailbiting convolutional codes and evaluate its performance over different channels. The proposed method consists on a fixed two-step Viterbi decoding of the received data. In the first step, an estimation of the most likely state is performed based on a SOVA decoding. The second step consists of a conventional Viterbi decoding that employs the state estimated in the previous step as the initial and final states of the trellis. Simulations results show a performance close to that of maximum-likelihood decoding.2009http://zaguan.unizar.es/record/149116http://zaguan.unizar.es/record/149116oai:zaguan.unizar.es:149116IEEE COMMUNICATIONS LETTERS 13, 7 (2009), 510-512byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess