Non-coherent detection receiver, system and method for polar codes

Abstract

The embodiment of the invention provides an incoherent detection receiver, system and method for a polar code. The receiver comprises a multi-symbol differential detection module, a deinterleaving module, a polar code BP decoding module and an interleaving module, wherein the multi-symbol differential detection module is used for receiving an information sequence output by a channel, performing multi-symbol differential detection on the information sequence, and converting the obtained first posterior information into first extrinsic information; the deinterleaving module is used for deinterleaving the first extrinsic information to obtain first soft information; the polar code BP decoding module is used for performing polar code decoding on the first soft information to obtain second posterior information, and is used for converting the second posterior information into second extrinsic information; and the interleaving module is used for interleaving the second extrinsic informationand sending the prior information of the output information obtained after interleaving to the multi-symbol differential detection module. According to the embodiment of the invention, the 'two-way multiple' transmission and exchange of the extrinsic information between multi-symbol differential detection and polar code BP decoding can be implemented, and the incoherent detection performance of acommunication system can be obviously improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of coding and modulation of digital communication, and more specifically, relate to a polar code non-coherent detection receiver, system and method. Background technique [0002] With the establishment of 5G communication standards, polar codes, as an emerging coding method with theoretical performance up to the Shannon limit, play an increasingly prominent role in digital communication systems. At present, the research and application of polar codes are almost all based on coherent detection under additive white Gaussian noise (AWGN) channel. [0003] However, in many practical application scenarios, it is very difficult or even impossible to obtain ideal channel estimation. For example, wireless channels with fast fading characteristics. Non-coherent detection does not need to consider the channel estimation problem when performing information detection, which makes it have significant advant...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of unsatisfactory bit error performance in the application of polar codes to non-coherent detection communication systems, embodiments of the present invention provide a polar code non-coherent detection receiver, system and method

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