Relay Communication System and Channel Sorting Method Based on Channel Sorting and Network Coding
A technology for network coding and wireless communication systems, applied in the field of two-way relay communication systems, can solve the problems of low accuracy and high symbol error rate in signal processing, and achieve the goal of improving accuracy, reducing symbol error rate, and expanding communication capacity. Effect
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[0041] Such as figure 1 As shown, in the wireless two-way relay communication system TWRC, it includes: a relay node R and two end nodes, that is, the first end node S 1 and the second end node S 2 ; The relay node R has K antennas; K is a positive integer; the first end node S 1 and the second end node S 2 Each has an antenna; the signal transmission of the two-way relay communication system consists of two stages, including the data uplink stage and the data downlink stage; the signal processing process of the relay node R is as follows: figure 2 As shown, it includes a channel sorting module, a signal quantization module and a signal network coding module; wherein, the channel sorting module extracts the known channel fading coefficients, obtains a channel matrix with a dimension of K×2, and calculates the sum of the squares of the moduli of each element in each column And performing comparison and column exchange, the column exchange ensures that the sum of the squares...
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