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Three-dimensional Turbo product code decoding structure and method for optimizing iteration weight factor

A technology of weight factor and product code, applied in the field of channel coding and decoding, can solve the problem of unsatisfactory bit error rate of three-dimensional TPC, and achieve the effect of low bit error rate performance and improved decoding performance.

Pending Publication Date: 2022-04-19
ZHENGZHOU UNIV +1
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Problems solved by technology

The above algorithm has not made much improvement on the three-dimensional structure and optimized the three-dimensional TPC iteration weight factor. The bit error rate of three-dimensional TPC is still not very ideal under low signal-to-noise ratio.

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  • Three-dimensional Turbo product code decoding structure and method for optimizing iteration weight factor
  • Three-dimensional Turbo product code decoding structure and method for optimizing iteration weight factor
  • Three-dimensional Turbo product code decoding structure and method for optimizing iteration weight factor

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Embodiment Construction

[0084] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0085] Such as figure 1 As shown, the...

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Abstract

The invention discloses a three-dimensional Turbo product code decoding structure and a method for optimizing an iterative weight factor, which comprises the following steps of: carrying out three-dimensional TPC coding on 0 and lbit code streams to be sent in X, Y and Z directions by using an extended Hamming code and a parity check bit, and then transmitting information after BPSK modulation under an AWGN channel; after a signal is received, a three-dimensional body structure is regarded as a two-dimensional surface structure, and row and column ChaseII decoding is carried out by using a ChaseII decoding algorithm. According to the three-dimensional TPC decoding, a soft-input soft-output iterative decoding algorithm is adopted in the X-axis direction, the Y-axis direction and the Z-axis direction respectively. According to the invention, by analyzing the iteration weight factors and simulating different iteration weight factor vectors in the parallel iteration decoding structure of the three-dimensional TPC, a group of iteration weight factors enabling the bit error rate performance to be the best are obtained, the decoding performance under the low signal-to-noise ratio is improved, the performance is very close to the Shannon limit, and the requirement of mobile wireless communication is met.

Description

technical field [0001] The invention belongs to the field of channel coding and decoding in communication systems, and discloses a three-dimensional Turbo product code decoding structure and a method for optimizing iteration weight factors. Background technique [0002] Turbo product codes are currently included in various communication protocol standards, the IEEE802.16 protocol for fixed and mobile broadband wireless access systems, which is commercially known as global interoperability for microwave access, TPC is also used in local area networks and metropolitan areas The IEEE802.20 protocol of the mobile broadband wireless access (MBWA) under the network, and the IEEE-1901 protocol of the broadband power line network are also applied to the TPC. In addition, the high coding gain of TPC at high bit rates has been used in optical communication systems to achieve reliable high-speed transmission and increase system capacity. Moreover, TPC is also used to improve the perfo...

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Application Information

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IPC IPC(8): H03M13/29
CPCH03M13/296H03M13/2948
Inventor 王忠勇赵宁张佳利江桦巩克现应文威孙鹏
Owner ZHENGZHOU UNIV
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