Method of lowering multicarrier communication system signal peak uniform power ratio using cyclic matrix |
Title： |
| Method of lowering multicarrier communication system signal peak uniform power ratio using cyclic matrix |
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Application Number： |
200410000343 |
Application Date： |
2004/01/09 |
Announcement Date： |
2004/12/22 |
Pub. Date： |
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Publication Number： |
1556598 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04B 7/005, H04J 11/00 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Huang Xiao, Lu Jianhua, Zheng Junli |
Key Words： |
lower, multicarrier communication system, signal peak, uniform power ratio, cyclic matrix |
Abstract： |
The invention relates to a method for using circular matrix to reduce the signal peak-mean power ratio of multi-carrier communication system which belongs to communication technology field, the character lies in: at the transmitting end, through forming circular matrix, carries on weighting conversion to the multi-carrier modulator with a converter (the digital signal processing unit); at the receiving end, it carries on reverse conversion to the output signal of the multi-carrier demodulator with a reverse converter according to the reverse conversion rule correspondent to the transmitting end. The invention can reduce the peak-mean power ratio of the input signal effectively with lower calculation quantity and complexity in condition that does not provoke the system error byte rate performance loss, avoids the nonlinear loss when the power amplifier amplifies the signal. |
Claim： |
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PCT： |
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