Communication method based on bi-directional relay network coding system
A technology of network coding and communication method, applied in the field of communication based on two-way relay network coding system, it can solve problems such as no good, small average symbol error rate, etc., to avoid high computational complexity and avoid system non-convergence Effect
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0021] In the embodiment of the present invention, the signal processing method based on the two-way relay network coding system is as follows figure 1 shown.
[0022] In step 110, at first the definition of the average symbol error rate of the two-way relay system is given: 1 / (SNR UL +1)+1 / (SNR DL +1), and take the average symbol error rate of this two-way relay system as the optimization target of relay signal processing. Among them, SNR UL is the receiving signal-to-noise ratio of the base station, SNR DL is the received signal-to-noise ratio of the user.
[0023]Given the mathematical description of the relay optimal signal processing matrix to obtain the minimum system average symbol error rate under the given power condition, the problem of the relay op...
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