Abstract
A new turbo decoding method with a run length limited (RLL) code for optical storage is proposed. The system entails a trellis code that joins the RLL code, the non-return-to-zero inverse (NRZI) conversion, and the partial response (PR) channel as the inner code. The inner a posteriori probability (APP) decoder is able to utilize the extrinsic information fed back from the output of the outer decoder. A turbo-coded (1, 7)RLL-constrained PR2 channel was simulated. The full, partial, and serial turbo decoding systems with the inner APP decoder achieved coding gains of 4.7 dB, 4.3 dB, and 3.3 dB, respectively, over the uncoded (1, 7)RLL-constrained PR2 channel at a bit error rate (BER) of 10-5. The full and partial turbos were also improved by 1.2 dB and 0.8 dB, respectively, over the partial turbo with the RLL soft-input soft-output (SISO) decoder at a BER of 10-5.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
