  Turbo codes and CRC codes are usually decoded separately according to the
serially concatenated inner codes and outer codes respectively. In this letter,
we propose a hybrid decoding algorithm of turbo-CRC codes, where the outer
codes, CRC codes, are not used for error detection but as an assistance to
improve the error correction performance. Two independent iterative decoding
and reliability based decoding are carried out in a hybrid schedule, which can
efficiently decode the two different codes as an entire codeword. By
introducing an efficient error detecting method based on normalized Euclidean
distance without CRC check, significant gain can be obtained by using the
hybrid decoding method without loss of the error detection ability.
