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Heterogeneous wireless network access selection method based on fuzzy neural network

A technology of fuzzy neural network and heterogeneous wireless network, which is applied in the direction of biological neural network model, access restriction, wireless communication, etc., and can solve problems such as network load imbalance

Inactive Publication Date: 2013-04-17
JILIN UNIV
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a heterogeneous wireless network access selection method based on a fuzzy neural network for the problem of unbalanced load between networks in a multi-network coverage environment existing in the prior art

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  • Heterogeneous wireless network access selection method based on fuzzy neural network
  • Heterogeneous wireless network access selection method based on fuzzy neural network
  • Heterogeneous wireless network access selection method based on fuzzy neural network

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Embodiment Construction

[0071] The present invention is described in detail below in conjunction with accompanying drawing:

[0072] The present invention adopts fuzzy neural network technology for access selection of heterogeneous wireless networks. The access selection method combines the powerful structural knowledge expression ability of fuzzy logic and the powerful self-learning ability of neural network, which belongs to intelligent access selection method. The fuzzy neural network that adopts among the present invention is RBF (Radial Basis Function, radial basis function) fuzzy neural network, and with the difference of the access blocking rate of two networks as the input signal of reinforcement learning algorithm to the parameter of RBF fuzzy neural network Make training adjustments.

[0073] refer to figure 2 , the purpose of the heterogeneous wireless network access selection method based on fuzzy neural network is to carry out intelligent access selection according to the characterist...

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Abstract

The invention discloses a heterogeneous wireless network access selection method based on a fuzzy neural network, aiming to solve the problem of imbalance loading among networks in a network coverage environment. The access selection method comprises the steps of: 1. prejudging and preprocessing: a. reducing the number of users which need to be processed subsequently; b. computing received signalstrength difference (DRSS) of two networks and access system difference DP of the two networks; 2. obtaining a fuzzy judgment factor FSD by using an RBF fuzzy neural network, wherein the fuzzy judgment factor FSD is obtained by adopting the RBF fuzzy neural network by taking the received signal strength difference (DRSS) of the two networks and the access system difference DP of the two networksas input parameters; 3. access judgment: obtaining an access judgment result according to the fuzzy judgment factor FSD; if the fuzzy judgment factor FSD is less than 0.5, then accessing network 1; if the fuzzy judgment factor FSD is more than 0.5, then accessing network 2; and if the fuzzy judgment factor FSD is equal to 0.5, and then accessing a network with strong signal strength.

Description

technical field [0001] The invention relates to an access selection method applied in a wireless network in the technical field of mobile communication, more specifically, the invention relates to a fuzzy neural network-based heterogeneous wireless network access selection method. Background technique [0002] The development trend of the next generation of mobile communication (Beyond 3G) is not to build a new network with complete functions, but to consider the existing and to-be-deployed networks, make them coordinate and easy to integrate, and maintain the communication between multiple wireless networks. continuity. At present, each wireless access technology has its own strengths and weaknesses in terms of capacity, coverage, data rate, and mobility support capabilities. It is impossible for any wireless access technology to meet the requirements of all users. [0003] One of the main characteristics of the future mobile communication network is the coexistence of var...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W48/06G06N3/02
Inventor 石文孝范绍帅王柟赵嵩夏传军李斌
Owner JILIN UNIV
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