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.:

US 7912147 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 22, 2011

Filed:

Mar. 14, 2007
Applicants:

Zhixin Liu, College Station, TX (US);

Vladimir M. Stanković, Lancaster, GB;

Zixiang Xiong, Spring, TX (US);

Inventors:

Zhixin Liu, College Station, TX (US);

Vladimir M. Stanković, Lancaster, GB;

Zixiang Xiong, Spring, TX (US);

Assignee:

The Texas A&M University System, College Station, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems and methods that implement compress-forward (CF) coding with N-PSK modulation for the relay channel are disclosed, where N is greater than or equal to two. In the CF scheme, Wyner-Ziv coding is applied at the relay to exploit the joint statistics between signals at the relay and the destination. Quantizer design and selection of channel code parameters are discussed. Low-density parity check (LDPC) codes are used for error protection at the source, and nested scalar quantization (NSQ) and irregular repeat accumulate (IRA) codes for Wyner Ziv coding (or more precisely, distributed joint source-channel coding) at the relay. The destination system decodes original message information using (a) a first signal received from the source in a first interval and (b) a second signal that represents a mixture of transmissions from the source and relay in the second interval.


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Liu, Zhixin. (2011). Compress-forward coding with n-psk modulation for the half-duplex gaussian relay channel (U.S. Patent No. 7912147). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7912147

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