Guessing random additive noise decoding (GRAND) in concatenated schemes: An investigation of complexity and BER behavior
Recently, a newly developed family of decoders named as Guessing Random Additive Noise Decoder (GRAND) has been gaining attention. The key idea of the decoder is to look for the most probable error vectors that interacted with the transmitted message, producing the received block. Among the different variations of the algorithm, the soft-input soft-output (SISO) decoder, known as SO-GRAND, emerges