Encoder device, decoder device, and methods thereof

A device, comprising:

• a decoder comprising a tail biting convolutional code having a constraint length, wherein L represents a length of the constraint length of the tail biting convolutional code, the decoder being configured to:
• receive an input sequence;
• compute at least one reliability parameter based on the received input sequence;
• and
• determine an information word c using the tail biting convolutional code and based on the at least one reliability parameter, wherein the information word c=[c0, c1, . . . , cK-1] has K information bits ci, wherein K represents a number of information bits ci, K is less than L minus 1.

A method, comprising:

• receiving, by a decoder, an input sequence;
• computing, by the decoder, at least one reliability parameter based on the received input sequence;
• and
• determining, by the decoder, an information word c=[c0, c1, . . . , cK-1] using a tail biting convolutional code and based on the at least one reliability parameter, wherein the information word c has K information bits ci, K is a number of information bits ci, the tail biting convolutional code has a constraint length, L represents a length of the constraint length of the tail biting convolutional code, and K is less than L minus one.