A decoding algorithm for some convolutional codes constructed from block codes

A new decoding algorithm for some convolutional codes constructed from block codes is given. The algorithm utilizes the decoding algorithm for the corresponding block code. It is shown that the codes obtained from one-step orthogonalizable block codes are majority decodable.

Error propagation in some of these convolutional codes is studied. It is shown that if decoded with moderately reduced capability, these codes exhibit limited error propagation. A mode switching decoding method is suggested to realize a larger error correction capability while maintaining limited error propagation.