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:
Nov. 14, 2017
Filed:
Mar. 24, 2016
Nec Laboratories America, Inc., Princeton, NJ (US);
Fatih Yaman, Monmouth Junction, NJ (US);
Shaoliang Zhang, Princeton, NJ (US);
Eduardo Mateo Rodriquez, Tokyo, JP;
Yoshihisa Inada, Tokyo, JP;
Takaaki Ogata, Tokyo, JP;
Takanori Inoue, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Methods and systems for communication with an optimized constellation include coding an input data stream to a symbol stream according to an optimized constellation that has a non-Gray bit mapping and that has neighboring points having more than one bit difference farther apart than neighboring points having one bit difference. The symbol stream is modulated onto a transmission signal and subsequently demodulated at a receiver to produce a received symbol stream. The received symbol stream is decoded to a bitstream according to an optimized constellation that has a non-Gray bit mapping and that has neighboring points having more than one bit difference farther apart than neighboring points having one bit difference.