Blocking bit loading method in selective frequency blocking transmission system
A technology of block transmission and bit loading, applied in the direction of multi-frequency code system, etc., can solve the problems of drop, no application, high complexity wireless environment, etc.
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[0082] figure 1 A system block diagram for realizing the proposed method of the present invention is provided, and the functions of each module are as follows:
[0083] Source module 1: Generate data to be transmitted.
[0084] Blocking module 2: Determine the block information transmitted from the module 21 according to the block and modulation mode, and allocate the data generated by the source to each block.
[0085] Mapping module 3: Determine the modulation mode information from the module 21 according to the block and modulation mode, select a different modulation mode (QAM or MPSK), and map the data generated by the signal source to the corresponding point of the constellation.
[0086] Block FFT module 4: Determine the block information transmitted from the module 21 according to the block and modulation mode, perform FFT transformation on each block, and transform the data of each block into the frequency domain.
[0087] Spectrum transformation module 5: According ...
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