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 8422570 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Oct. 13, 2005
Applicants:

Norman C. Beaulieu, Edmonton, CA;

Peng Tan, Edmonton, CA;

Inventors:

Norman C. Beaulieu, Edmonton, CA;

Peng Tan, Edmonton, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A discrete cosine transform (DCT)-based orthogonal frequency-division multiplexing (OFDM) system is provided with a zero-padding guard interval and MMSE reception. The performance of the DCT-OFDM system with the zero-padding guard interval scheme and the minimum mean-square error (MMSE) receiver over time-varying multipath Rayleigh fading channels is investigated. The results show that employing the proposed DCT-OFDM system rather than the conventional DFT-OFDM system can provide better bit error rate performance in practical systems, by as much as 6 dB in signal-to-noise ratio.


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Beaulieu, Norman. (2013). Systems and methods for ofdm transmission and reception (U.S. Patent No. 8422570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8422570

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