论文标题
涡轮代码的CRC辅助混合动力解码
A CRC-aided Hybrid Decoding for Turbo Codes
论文作者
论文摘要
涡轮代码和CRC代码通常分别根据串行的内部代码和外部代码分别分别解码。在这封信中，我们提出了涡轮CRC代码的混合解码算法，其中外部代码，CRC代码不用于错误检测，而是用于提高错误校正性能的帮助。在混合时间表中进行了两个独立的迭代解码和基于可靠性的解码，可以有效地将两个不同代码作为整个代码字解码。通过在没有CRC检查的情况下基于归一化的欧几里得距离引入有效的错误检测方法，可以使用混合解码方法获得显着增益，而不会损失误差检测能力。
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.
