A Processing Method for Non-orthogonal Signals

A technology for non-orthogonal signals and processing methods, which is applied to the separation device of the transmission path, the sub-channel allocation of the transmission path, and the shaping network in the transmitter/receiver. It can solve the problems of limited sub-carriers and achieve equalization effect. Good, reduced complexity effect

Active Publication Date: 2022-05-10
JINAN UNIVERSITY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for eliminating inter-carrier interference in a non-orthogonal discrete multi-tone system with less correlation between the complexity and the number of sub-carriers used. restricted question

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  • A Processing Method for Non-orthogonal Signals

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Embodiment Construction

[0048] The invention relates to a non-orthogonal signal processing method, which includes a sender processing method (transmission method for short) and a receiver processing method (reception method for short).

[0049] In this method, the inter-carrier interference is eliminated in the non-orthogonal discrete multi-tone system by coding-assisted iterative decoding. The coding here refers to the channel coding with error correction capability, such as the transmitting end using convolutional code to increase redundancy, and the receiving end using adaptive Viterbi decoding. This channel coding is used to constantly correct the error, and then the error rate is updated through the iteration process and the cycle of coding and decoding. Channel coding with error-correcting ability makes iteration effective, because if it is not for the error-correcting ability of coding and decoding, the result of each iteration will not change. The receiving end of the invention continuously updat...

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Abstract

The invention relates to the research field of communication technology, and mainly discloses a non-orthogonal signal processing method, which uses code-assisted iterative decoding to eliminate inter-carrier interference and combines bit and power allocation algorithms in a non-orthogonal discrete multi-tone system , to maximize the use of the channel bandwidth and the signal-to-noise ratio of each subcarrier. The method for eliminating inter-carrier interference of the present invention greatly reduces the complexity of the method, and its complexity has little correlation with the number of sub-carriers used, so that the non-orthogonal discrete multi-tone system of the present invention can use a large number of More importantly, the increase in the number of subcarriers makes the advantages brought by the bit and power allocation scheme more obvious, which is conducive to maximizing the use of channel bandwidth and the signal quality of each subcarrier. noise ratio.

Description

Technical field [0001] The invention relates to the research field of communication technology, in particular to a data processing method which uses coding-assisted iterative decoding to eliminate inter-carrier interference in a non-orthogonal discrete multi-tone system, combines bit and power allocation algorithms, and maximizes the channel bandwidth and the signal-to-noise ratio of each subcarrier. technical background [0002] With the explosive growth of data services such as mobile Internet and big data, the capacity requirement of optical transmission system is greatly improved. Orthogonal frequency division multiplexing (OFDM) attracts more and more people's interest because of its good scalability, mature digital signal processing algorithm and high spectral efficiency. Multi-tone is a variant of orthogonal frequency division multiplexing, which inherits the advantages of orthogonal frequency division multiplexing, and each subcarrier has a very flexible and independent m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04L5/00
CPCH04L25/03159H04L5/001H04L5/006
Inventor 周骥熊灿阳王海德刘伟平李朝晖
Owner JINAN UNIVERSITY
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