A method of predicting future signals for wireless communications using echo state network

A technology of echo state network and wireless communication, applied in wireless communication, data exchange network, neural learning method, etc., can solve the problem of unpredictable future symbols, and achieve the solution of complex training algorithm, few training parameters and improve communication performance. Effect

Active Publication Date: 2019-11-19
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 of predicting future signals for wireless communications using echo state network
  • A method of predicting future signals for wireless communications using echo state network
  • A method of predicting future signals for wireless communications using echo state network

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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 an echo state network. The method comprises the following steps: 1) selecting and initializing echo state network parameters; 2) performing output weight training; 3) predicting future signals and code elements; 4) calculating the decoding threshold of the current symbol; and 5) iteratively predictinga future signal for decoding more sign bits, adopting offline training, and keeping an output weight Wout obtained by training unchanged in subsequent signal prediction; and predicting the next symbol, and decoding more symbol bits. The method provided by the invention is simple, convenient and feasible, can more effectively resist intersymbol interference caused by multipath transmission, reduces the bit error rate in communication transmission, and effectively improves 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 Applications(China)
IPC IPC(8): H04L12/24H04W24/00G06N3/08
CPCH04L41/147H04W24/00G06N3/08
Inventor 任海鹏尹彗平白超李洁
Owner XIAN UNIV OF TECH
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