Time-domain synchronous orthogonal frequency division multiplex modulation method of low peak average power ratio |
Title: |
Time-domain synchronous orthogonal frequency division multiplex modulation method of low peak average power ratio |
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Application Number: |
02100457 |
Application Date: |
2002/02/01 |
Announcement Date: |
2002/09/04 |
Pub. Date: |
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Publication Number: |
1367615 |
Announcement Number: |
1159911 |
Grant Date: |
2004-7-28 |
Granted Pub. Date: |
2004-7-28 |
ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
H04L 27/32, H04N 7/015 |
Applicant(s): |
Tsinghua Univ. |
Inventor(s): |
Yang Lin, Yang Zhixing |
Key Words: |
Time-domain synchronous, orthogonal frequency division multiplex, modulation, low peak average power |
Abstract: |
The present invention relating to a time domain synchronous quadrature frequency division multiplex modulation method with low peak value average power ratio belongs to digital information transmission technical field. The method includes follows, after forward error correction and modulation, to send inputted data code stream to PADR processing module formed by FFT conversion and frequency reshaping and then to obtain a OFDM letter of low peak value average power ratio after it having been converted by IFFI and to be sent out. At the same time receiving end can adopt different equalizing methods. The present invention has overcome the shortcomings of high time peak value average power ratio in multicarrier frequency modulation method and frequency domain or/and time domain channel equalizing method can be applied flexibly. |
Claim: |
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Priority: |
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PCT: |
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LegalStatus: |
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