Invention Grant
- Patent Title: Systems and methods for phase noise mitigation in optical superchannels
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Application No.: US17001299Application Date: 2020-08-24
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Publication No.: US11271659B1Publication Date: 2022-03-08
- Inventor: Mrinmoy Jana , Jeebak Mitra , Lutz Hans-Joachim Lampe , Jin Wang , Zhuhong Zhang
- Applicant: Mrinmoy Jana , Jeebak Mitra , Lutz Hans-Joachim Lampe , Jin Wang , Zhuhong Zhang
- Applicant Address: CA Vancouver; CA Stittsville; CA Vancouver; CA Ottawa; CA Ottawa
- Assignee: Mrinmoy Jana,Jeebak Mitra,Lutz Hans-Joachim Lampe,Jin Wang,Zhuhong Zhang
- Current Assignee: Mrinmoy Jana,Jeebak Mitra,Lutz Hans-Joachim Lampe,Jin Wang,Zhuhong Zhang
- Current Assignee Address: CA Vancouver; CA Stittsville; CA Vancouver; CA Ottawa; CA Ottawa
- Main IPC: H04B10/61
- IPC: H04B10/61 ; H04L5/00 ; H04L25/03 ; H04B10/00 ; H04B10/079 ; H04B10/25

Abstract:
A receiver architecture is described for phase noise compensation in the presence of inter-channel interference (ICI) and inter-symbol interference (ISI), particularly for time-frequency packing (TFP) transmissions. The receiver includes a coarse phase noise (PN) estimator, a PN compensation module, an ICI cancellation module, an ISI compensation module, a FEC decoder, and an iterative PN estimator. The iterative PN estimator receives log likelihood ratio (LLR) information from the decoder and provides an iterative PN estimation to the PN compensation module. The decoder also provides LLR to the ISI compensation module, and to at least one other receiver for another subchannel that is immediately adjacent in frequency. The ICI cancellation module receives decoder output from at least one adjacent subchannel, which the ICI cancellation module uses to provide a ICI-cancelled signal.
Public/Granted literature
- US20220060262A1 SYSTEMS AND METHODS FOR PHASE NOISE MITIGATION IN OPTICAL SUPERCHANNELS Public/Granted day:2022-02-24
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