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A Method for Predicting Future Signals in Wireless Communication Using Echo State Networks

An echo state network and wireless communication technology, applied in wireless communication, neural learning methods, biological neural network models, etc., can solve problems such as unpredictable future symbols, and achieve a low bit error rate, easy implementation, and resistance to intersymbol interference. Effect

Active Publication Date: 2022-03-18
XIAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for predicting the future signal of wireless communication by using the echo state network, so as to solve the problem that the future symbol cannot be predicted at the current moment in the chaotic baseband wireless communication system of the prior art

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  • A Method for Predicting Future Signals in Wireless Communication Using Echo State Networks
  • A Method for Predicting Future Signals in Wireless Communication Using Echo State Networks
  • A Method for Predicting Future Signals in Wireless Communication Using Echo State Networks

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] refer to Figure 1a , Figure 1b and figure 2 The working principle of the method of the present invention is that there are many sparse neurons in the dynamic reserve pool of the echo state network, which contains the operating state of the system and has a short-term memory function. First determine the parameters of the network, the number of input neurons is K; the number of neurons in the dynamic reserve pool is N, the number of output neurons is Q; the connection weight matrix input to the reserve pool is W in , the connection weight matrix of neurons in the dynamic reserve pool is a sparse matrix W. Then, the signal y(t) of the signal received in the wireless communication system after the matched filter is used as the input and output of the network; in the actual system, the oversampling rate of the signal is nbit=16; the t...

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Abstract

The invention discloses a method for predicting future signals of wireless communication by using echo state network. The steps include: 1) parameter selection and initialization of echo state network; 2) output weight training; 3) prediction of future signals and symbols; 4) current symbol Decoding threshold calculation; 5) Iteratively predict future signals for decoding more symbol bits, using offline training, in the subsequent signal prediction, the output weight W obtained from training out Stay the same; predict the next symbol, decode more symbol bits. The method of the invention is simple and easy to implement, can more effectively resist the inter-symbol interference caused by multipath transmission, reduce the bit error rate in communication transmission, and effectively improve the communication performance.

Description

technical field [0001] The invention belongs to the technical field of artificial intelligence and wireless communication, and relates to a method for predicting future signals of wireless communication by using an echo state network. Background technique [0002] Due to its inherent characteristics, such as high sensitivity to initial conditions, broadband, orthogonality, and easy generation, chaos has broad application prospects in the field of communication. In the early 1990s, the application of chaos in communication mainly has two aspects, one is secure communication, and the other is spread spectrum communication. The research on spread spectrum communication has formed some local network communication standards, such as IEEE802.15.6. Since chaos has been successfully applied to optical fiber communication channels and has obtained higher bit rates, the research focus of chaos communication has also shifted from the ideal channel of Gaussian noise to the actual commu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/147H04W24/00G06N3/08
CPCH04L41/147H04W24/00G06N3/08
Inventor 任海鹏尹慧平白超李洁
Owner XIAN UNIV OF TECH
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