Partial transmit sequences grouping method for index modulating
A technology of index modulation and partial transmission, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of no valid data, different, etc., to achieve the effect of improving performance, reducing the degree of correlation, and improving system performance
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Embodiment 1
[0035] In this example, the number of subcarriers is 256, the modulation method is QPSK modulation, the index modulation method is 8 subcarriers as a submodule, each submodule has one valid data, the PTS grouping is 8 groups, and the phase factor is ±1. This example takes the following steps:
[0036] Step 1: Calculate the required number of bits according to the modulation method and the subcarrier index modulation method, and then generate symbols through two kinds of modulation;
[0037] Step 2: Perform two operations on the generated data symbols, one is to directly process the data symbols through the interleaving method, and the other is to record the interleaving index of each symbol while processing through the interleaving method.
[0038] Step 3: Perform two operations on the interleaved data, one is to directly perform PTS grouping (here divided into 8 groups), and the other is to use the recorded interleaving index to extract from several data belonging to the same...
Embodiment 2
[0043] In this example, the number of sub-carriers is 256, the modulation method is QPSK modulation, the index modulation method is 16 sub-carriers as a sub-module, each sub-module has one valid data, the PTS grouping is 8 groups, and the phase factor is ±1. , this example takes the following steps:
[0044] Step 1: Calculate the required number of bits according to the modulation method and the subcarrier index modulation method, and then generate symbols through two kinds of modulation;
[0045] Step 2: Perform two operations on the generated data symbols, one is to directly process the data symbols through an interleaving method, and the other is to record the interleaving index of each symbol while processing through the interleaving method;
[0046] Step 3: Perform two operations on the interleaved data, one is to directly perform PTS grouping (here divided into 8 groups), and the other is to use the recorded interleaving index to extract from several data belonging to th...
Embodiment 3
[0051] In this example, the number of sub-carriers is 256, the modulation method is QPSK modulation, the index modulation method is 16 sub-carriers as a sub-module, each sub-module has one valid data, the PTS is grouped into 4 groups, and the phase factor is ±1. , this example takes the following steps:
[0052] Step 1: Calculate the required number of bits according to the modulation method and the subcarrier index modulation method, and then generate symbols through two kinds of modulation;
[0053] Step 2: Perform two operations on the generated data symbols, one is to directly process the data symbols through the interleaving method, and the other is to record the interleaving index of each symbol while processing through the interleaving method. ;
[0054] Step 3: Perform two operations on the interleaved data, one is to directly perform PTS grouping (here divided into 4 groups), and the other is to use the recorded interleaving index to extract from several data belongi...
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