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Vertical switching control system and method based on fuzzy logic

A technology of vertical switching and fuzzy logic, applied in the field of mobile IP, it can solve the problems of complex switching decision and difficult mathematical modeling, and achieve the effect of solving the problem of vertical switching decision algorithm.

Inactive Publication Date: 2007-01-03
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional handover decisions are based on AP signal strength as a reference standard. However, vertical handover between heterogeneous networks will rely on more criteria to make handover decisions, which will make handover decisions more complicated and difficult to carry out mathematical modeling.

Method used

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  • Vertical switching control system and method based on fuzzy logic
  • Vertical switching control system and method based on fuzzy logic
  • Vertical switching control system and method based on fuzzy logic

Examples

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Embodiment Construction

[0019] Such as figure 1 As shown, it is a scene description diagram of vertical handover in an overlapping multi-standard network environment. The MN is a mobile device with multiple network interfaces, including 802.3, 802.11, GPRS, CDMA1X, 3G and other network standards. In the process of moving, the MN completes the selection of the optimal access network for handover in the multi-mode network environment with overlapping coverage. The present invention is applicable to mobile nodes with multi-standard network interfaces, the network interfaces are numbered 1-n, and the network standards include 802.3, 802.11, GPRS, CDMA1X, 3G and so on.

[0020] Such as figure 2 As shown, the fuzzy logic-based vertical switching decision control system of the present invention includes 5 basic components: fuzzification module, fuzzy logic reasoning module, defuzzification module, knowledge base and configuration management module, wherein the function of fuzzification module is to comple...

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Abstract

A vertical switching control system based fuzzy logic comprises obfuscation mobile, inference module of fuzzy logic, deobfuscating module, knowledge base and configuration managing module. It is featured as carrying out comprehensive evaluation on network link quality, bandwidth, price, battery capacity, mobile speed and user interest by utilizing said modules through fuzzy algorithm in order to select out optimum network for carrying out switching.

Description

technical field [0001] The invention belongs to the field of mobile IP. Specifically, it proposes a fuzzy-logic-based vertical handover decision-making control system and a control method for network link quality, bandwidth, price, battery power, mobile speed, and user preference of a mobile node MN. Various factors are comprehensively evaluated, and the most suitable network for the application is selected for switching. Background technique [0002] Wireless and mobile networks are ubiquitous, providing users with communication services everywhere. Existing wireless and mobile networks are different in terms of coverage, access capabilities, address ranges, and mobile support, which increases network heterogeneity while providing users with rich access methods. Mobile devices with multiple network interfaces exist widely, and users can choose to access the "interesting" network. How to dynamically select the "optimal" bearer network for applications to better serve end u...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04L29/06H04W24/08H04W36/14H04W36/30
Inventor 王剑白周琼琼李未孙波楼亦华陈峰魏嵬
Owner BEIHANG UNIV
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