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Load Balancing Method Based on Forced Switching in Heterogeneous Wireless Network System

A heterogeneous wireless network and load balancing technology, which is applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problem that the algorithm does not consider both the network end and the user end, load imbalance between networks, switching users and Lack of judgment and comprehensive consideration in the selection of the target network

Active Publication Date: 2018-07-17
SHANDONG UNIV OF FINANCE & ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current load balancing algorithm solves the problem of unbalanced load between networks to a certain extent.
However, most of the algorithms do not take into account the interests of both the network side and the user side, and lack more accurate judgment and comprehensive consideration in the selection of switching users and target networks.

Method used

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  • Load Balancing Method Based on Forced Switching in Heterogeneous Wireless Network System
  • Load Balancing Method Based on Forced Switching in Heterogeneous Wireless Network System
  • Load Balancing Method Based on Forced Switching in Heterogeneous Wireless Network System

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] figure 1 It is a system diagram of a heterogeneous wireless network, and the networks adopted in the present invention are the most common universal mobile communication system UMTS and wireless local area network WLAN. The network system includes two UMTS and four WLANs. The base stations and wireless access points of the network are marked in the figure, respectively BS1, BS2, AP1, AP2, AP3, and AP4. For the convenience of algorithm expression, Label the corresponding six networks as U1, U2, U3, U4, U5, and U6, respectively. User terminals are randomly distributed throughout the network, and several representative terminals are marked in the figure, namely UE1, UE2, UE3, UE4, UE5, and UE6. UE1 is in the overlapping coverage area of ​​networks U1 and U3; UE2 is in the overlapping coverage area of ​​U1, U2, U4, and U5; UE3 is in the overlapping...

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Abstract

The invention relates to a load balancing method based on forced switching in a heterogeneous wireless network system. The method comprises a) determining whether the load is greater than the threshold; b) determining the network set waiting for load increasing because the difference value of load is greater than a preset threshold value and an overlapping coverage area exists in the network waiting for load decreasing and in the heterogeneous wireless network; c) utilizing a user selection strategy for comprehensively considering the business rate, the fairness, the QoS profit and the network wireless resource utilization rate to select a target switching user; d) switching the target terminal, determining the network waiting for load increasing through a network selection algorithm based on a utility function and fuzzy logic, and switching the target; and e) determining whether the load is balanced. The load balancing method can automatically search out a suitable network waiting for load increasing and switch the target user when an overload network exists, and the user is switched to the network waiting for load increasing to realize load decreasing of the overload network, so that well running of each wireless network can be guaranteed and satisfying service can be always supplied to the user.

Description

technical field [0001] The present invention relates to a load balancing method based on forced switching in a heterogeneous wireless network system, and more specifically, to a method that can effectively improve the overall utilization rate and A load-balancing method based on forced switching for user's quality of service. Background technique [0002] As people's requirements for wireless network communication continue to increase, a single network cannot meet user needs. Therefore, various wireless access network technologies emerge in an endless stream, and the performance and applicable scenarios of different access technologies are different. The next-generation wireless network will be a converged heterogeneous network system in which multiple wireless networks co-exist and complement each other. In order to obtain satisfactory services, users can seamlessly switch between various networks. [0003] Aiming at the uneven distribution of business volume among the va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08
CPCH04W28/08
Inventor 郭强张晓萌朱若菡
Owner SHANDONG UNIV OF FINANCE & ECONOMICS
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