Improving the max-log-MAP turbo decoder

Juliane Vogt; Adolf Finger

doi:10.1049/el:20001357

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Improving the max-log-MAP turbo decoder

Juliane Vogt Adolf Finger

Year: 2000 Journal: Electronics Letters Vol: 36 (23)Pages: 1937-1939 Publisher: Institution of Engineering and Technology

DOI: 10.1049/el:20001357

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Abstract

Decoding turbo codes with the max-log-MAP algorithm is a good compromise between performance and complexity. The decoding quality of the max-log-MAP decoder is improved by using a scaling factor within the extrinsic calculation. Simulations using the IMT-2000/3GPP parameters demonstrate that this method gives ~0.2 to 0.4 dB performance gain compared to the standard max-log-MAP algorithm.

Keywords:

Turbo code Decoding methods Soft-decision decoder Algorithm Turbo Computer science Turbo equalizer Serial concatenated convolutional codes Mathematics Concatenated error correction code Engineering Block code

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Advanced Wireless Communication Techniques

Physical Sciences → Engineering → Electrical and Electronic Engineering

Error Correcting Code Techniques

Physical Sciences → Computer Science → Computer Networks and Communications

PAPR reduction in OFDM

Physical Sciences → Engineering → Electrical and Electronic Engineering

Improving the max-log-MAP turbo decoder

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