Title:
OPTIMIZED RECEIVING METHOD FOR OPTICAL UNIVERSAL FILTERED MULTI-CARRIER OPTICAL ACCESS NETWORK
Document Type and Number:
WIPO Patent Application WO/2024/000744
Kind Code:
A1
Abstract:
Disclosed in the present invention are an optimized receiving method, apparatus and device for an optical universal filtered multi-carrier optical access network, and a computer storage medium. The method comprises: performing odd-even sub-carrier extraction on a frequency domain signal, so as to obtain an odd sub-carrier signal and an even sub-carrier signal; respectively performing inverse fast Fourier transform on the odd sub-carrier signal and the even sub-carrier signal, so as to obtain an odd time domain signal and an even time domain signal; combining the odd time domain signal and the even time domain signal, so as to obtain a combined time domain signal; performing linear combination on the combined time domain signal and the even sub-carrier signal, performing fast Fourier transform, and then performing matched filtering processing, so as to obtain a frequency domain signal after filtering elimination; and performing channel estimation on the frequency domain signal after filtering elimination, and obtaining an original signal by means of QAM demodulation. In time domain diversity technology, full use is made of information overflowing from a data carrier to other carriers, thereby improving the performance of a receiver; and intra-symbol frequency domain averaging is added to a traditional least square method based channel estimation method, thereby further improving the performance of the receiver.
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Inventors:
GAO MINGYI (CN)
SHI YUE (CN)
WANG FENGGE (CN)
SHI YUE (CN)
WANG FENGGE (CN)
Application Number:
PCT/CN2022/111770
Publication Date:
January 04, 2024
Filing Date:
August 11, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
H04B10/516; H04L27/26
Foreign References:
| CN109474412A | 2019-03-15 | |||
| CN106685877A | 2017-05-17 | |||
| US20160269217A1 | 2016-09-15 | |||
| US20180191423A1 | 2018-07-05 |
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
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