A low-complexity PAPR suppression method in OFDM transmission system
A low-complexity, transmission system technology, applied in the field of low-complexity PAPR suppression, can solve the problems of poor reliability, high complexity of PAPR suppression algorithm, low transmission efficiency, etc., to improve reliability, reduce complexity, and reduce system The effect of computing time
Active Publication Date: 2022-07-01
湖南国科锐承电子科技有限公司
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[0004] In order to solve the technical problems of relatively high complexity, low transmission efficiency and poor reliability of the OFDM system PAPR suppression algorithm in the prior art, the present invention provides a simplified and reliable algorithm based on partial transmission sequences, which has the advantages of low implementation complexity and high data transmission rate. The advantages of high performance and good system performance can not only meet the requirements of system indicators, but also have low implementation complexity and PAPR suppression algorithm with the function of channel estimation
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[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0029] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by "front", "rear", "left", "right", "upper", "lower", etc. in the terms are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying ...
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The invention discloses a low-complexity PAPR suppression method in an OFDM transmission system. i Simplified to 1 and -1, which greatly reduces the computational complexity of the system; and the PAPR calculation only needs to be calculated 8 times, which is far less than the 2^8=256 calculations required by the original partial transmission sequence technology, which greatly reduces the The system calculates the time and uses BCH coding with error correction ability to improve the reliability of phase factor transmission. estimated capacity.
Description
technical field [0001] The invention relates to the technical field of signal processing, in particular to an efficient, reliable and low-complexity PAPR suppression method, system, computer equipment and storage medium in an OFDM-based signal transmission system, a low-complexity PAPR suppression method in an OFDM transmission system. Background technique [0002] OFDM (Orthogonal Frequency Division Multiplexing) is an Orthogonal Frequency Division Multiplexing technology, which is a type of multi-carrier modulation. The parallel transmission of high-speed serial data is realized by frequency division multiplexing, which has better anti-multipath weakening ability and can support multi-user access. The main idea of OFDM is to divide the channel into several orthogonal sub-channels, convert high-speed data signals into parallel low-speed sub-data streams, and modulate them for transmission on each sub-channel. Orthogonal signals can be separated by adopting correlation te...
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IPC IPC(8): H04L27/26H04L25/02H04L1/00
CPCH04L27/261H04L27/2615H04L25/0228H04L1/0057
Inventor 王新建朱江杨虎姜南高凯杨军李二保黄灯辉
Owner 湖南国科锐承电子科技有限公司