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Heterogeneous wireless network selection method based on intuitionistic fuzzy number and TOPSIS

A heterogeneous wireless network, intuitionally ambiguous technology, applied in wireless communication, access restrictions, electrical components, etc., can solve the decision information that cannot reflect the actual situation of the user, cannot express support and opposition at the same time, and the semantic importance is not clearly expressed. And other issues

Active Publication Date: 2020-03-31
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

For the above general fuzzy numbers and triangular fuzzy numbers, it is usually impossible to express both support and opposition decision-making information at the same time, thus making the expression of semantic importance unclear and unable to reflect the actual situation of users

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  • Heterogeneous wireless network selection method based on intuitionistic fuzzy number and TOPSIS
  • Heterogeneous wireless network selection method based on intuitionistic fuzzy number and TOPSIS
  • Heterogeneous wireless network selection method based on intuitionistic fuzzy number and TOPSIS

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Embodiment Construction

[0064] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0065] Such as figure 1 Shown is the heterogeneous wireless network selection method based on intuitionistic fuzzy numbers and TOPSIS in this embodiment, which specifically includes the following steps:

[0066] S1. Acquire the attribute set of the network where the mobile user terminal is currently located and the service type used. Such as figure 2 As shown, the network environment where the mobile user terminal is located in this embodiment mainly includes 3G communication standard UMTS, 4G communication standard LTE, wireless local area network WLAN and metropolitan area network WIMAX, and selects the following network attributes as the decision criteria set, mainly: bandwidth, Latency, packet loss, jitter, cost, security. Assuming that the service type used by t...

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Abstract

The invention discloses a heterogeneous wireless network selection method based on an intuitionistic fuzzy number and TOPSIS. The method comprises the following specific steps: S1, acquiring a targetnetwork attribute and a current service type; S2, constructing a target decision matrix according to the obtained target network attribute parameters, and performing normalization processing; S3, constructing intuitive fuzzy analytic hierarchy process models under different service types, and obtaining corresponding network attribute weight matrixes; S4, performing simple multiplication weightingon the obtained network attribute weight matrix and the target decision matrix to obtain a weighted decision matrix; and S5, sorting the weighted decision matrixes by using a TOPSIS method, and switching by taking an optimal result as a final target network. According to the method, semantic importance degree expression is carried out by adopting intuitionistic fuzzy numbers, and uncertainty and fuzziness can be expressed more richly and accord with reality compared with common fuzzy numbers, triangular fuzzy numbers and the like; and the network attribute weight is calculated based on the intuitionistic analytic hierarchy process model, and the optimal selection of the network is realized.

Description

technical field [0001] The invention belongs to the field of heterogeneous network fusion, in particular to a heterogeneous wireless network selection method based on intuitionistic fuzzy numbers and TOPSIS. Background technique [0002] With the rapid development of wireless communication technology, the heterogeneity of wireless networks becomes more and more obvious. Wireless networks include different types of networks such as broadband wireless access networks, cellular mobile networks, and satellite networks. From the first generation of mobile communication systems in the early 1980s to the current 4G, WLAN and even 5G, the emergence and overlapping of various heterogeneous networks have made it very difficult for mobile user terminals to choose. In order to better meet the network service requirements of users in different business and application scenarios, heterogeneous network integration has become an inevitable trend. [0003] Heterogeneous wireless network in...

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Application Information

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IPC IPC(8): H04W24/06H04W48/18
CPCH04W24/06H04W48/18
Inventor 俞鹤伟郭美圆
Owner SOUTH CHINA UNIV OF TECH
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