The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2014
Filed:
Apr. 02, 2013
Applicant:
Nec Laboratories America, Inc., Princeton, NJ (US);
Inventors:
Dayou Qian, Princeton, NJ (US);
Ting Wang, West Windsor, NJ (US);
Assignee:
NEC Laboratories America, Inc., Princeton, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/2507 (2013.01); H04L 7/00 (2006.01); H04L 27/26 (2006.01); H04L 27/227 (2006.01); H04L 27/22 (2006.01); H04B 10/00 (2013.01); H04B 10/61 (2013.01); H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
H04L 7/0079 (2013.01); H04L 27/26 (2013.01); H04L 27/2272 (2013.01); H04B 10/6165 (2013.01); H04L 27/223 (2013.01); H04L 27/2657 (2013.01); H04L 27/2671 (2013.01); H04L 27/2675 (2013.01); H04L 27/2697 (2013.01); H04L 2027/0026 (2013.01); H04B 2210/075 (2013.01);
Abstract
A method for phase noise mitigation for a coherent receiver in either an OFDM or single carrier based transmission system including applying a frequency offset and coarse phase noise compensation based on a radio frequency RF tone or using a phase lock loop PLL m-th power procedure, responsive to a signal from a digital signal processed transmission with an added pilots signal over an optical system, applying fine phase noise compensation based on comparison of the pilots signal in a time domain, removing the pilots, and demodulating the remaining pilotless signal.