Invention Grant
- Patent Title: Cyclic decoding for cascaded forward error-correction FEC codes
- Patent Title (中): 用于级联前向纠错FEC码的循环解码
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Application No.: US14249609Application Date: 2014-04-10
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Publication No.: US09337867B2Publication Date: 2016-05-10
- Inventor: Shaoliang Zhang , Fatih Yaman , Yequn Zhang
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: JP
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP
- Agent Joseph Kolodka
- Main IPC: H03M13/11
- IPC: H03M13/11 ; H03M13/35 ; H03M13/37 ; H03M13/39
Abstract:
A computer implemented method for a cyclic (forward-backward) decoding for a forward error-correction FEC scheme includes decoding a given k−1th codeword in a block code of length N in an optical communication system, forwarding M symbols' enhanced log likelihood ratios LLRs produced by decoding the k−1th codeword, decoding the kth codeword together with forwarded M symbols' enhanced LLRS, and feeding backward, to the initial step i) decoding, corresponding overlapped M symbols' enhanced LLRs for decoding of the k−1th codeword again.
Public/Granted literature
- US20140310580A1 Cyclic Decoding for Cascaded Forward Error-Correction FEC Codes Public/Granted day:2014-10-16
Information query
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