Frequency reversal transmission scheme of full diversity in cooperative communication system
A technology of frequency inversion and cooperative communication, which is applied in the direction of error prevention/detection through diversity reception, transmission system, multi-frequency code system, etc., which can solve the problems of coding gain and decoding complexity, and the difficulty of communication reliability, etc. question
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[0038] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so as to fully understand and implement the process of how to apply technical means to solve problems and achieve technical effects in the present invention.
[0039] The implementation process of the algorithm is described in detail below.
[0040] Step 1, source node transmitting process (such as figure 2 ), including step 101, step 102 and step 103.
[0041] Step 101, modulation. The binary data stream is modulated into a signal according to the signal constellation.
[0042] Step 102, Inverse Fast Discrete Fourier Transform. The modulated signal is divided into blocks according to the size N of each OFDM block, and an inverse fast discrete Fourier transform is implemented for each block.
[0043] Step 103, frequency up conversion. Combine the converted signal with the local carrier for frequency conversion, and transmit the frequency-conver...
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