Turbo equalization method and system based on three-dimensional Turbo product code

Abstract

The invention relates to a Turbo equalization method and system based on a three-dimensional Turbo product code, and belongs to the field of channel coding and decoding in a communication system. The method comprises the following steps: firstly, inputting received data into a Turbo equalizer, equalizing prior information obtained by outputting information by three-dimensional TCP decoding equipment during last iteration, transmitting the equalized data into a de-interleaver, and transmitting the equalized data into the three-dimensional TCP decoding equipment after the equalized data is processed by the de-interleaver. An estimated value and extrinsic information of data information are obtained through three-dimensional TCP decoding equipment, and finally, the extrinsic information is processed by an interleaver to obtain a mean value and a variance, and the mean value and the variance serve as prior information of next iteration and are transmitted into an equalizer. According to the invention, on the basis of the Turbo equalization technology of the two-dimensional TPC, the three-dimensional TPC decoding structure is applied to the LMMSE Turbo equalization system, so that the ISI resistance in the communication process is further improved, the complexity is reduced, and the intersymbol interference resistance in wireless communication transmission is improved.

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