Modular switching method based on load balancing and qos in heterogeneous network

Abstract

The invention, which belongs to the technical field of the mobile communication, relates to a modularization switching method base on load balancing and QoS in a heterogeneous network. According to the invention, in order to solve a problem of seamless switching in a next-generation heterogeneous network, the method enables switching to an optimal network to be realized rapidly and accurately by considering factors including the network performance, user preference, and load situations comprehensively. The method comprises: proper switching parameters are selected and normalization processing is carried out; the selected parameters are divided into two modules: a network quality (NQ) module and a user preference (UP) module, and the NQ module is processed by using a technique for order preference by similarity to ideal solution (TOPSIS) to obtain a result Qi and the UP module is processed by using fuzzy logic to obtain a result Pi; and a load factor alpha is introduced into the network to obtain a comprehensive score Z. According to the invention, the method meets the development trend focusing on user experience in a next-generation network; and the high computation complexity caused by dealing with too many parameters in a unified mode can be reduced. While the user service quality is met, the network load is balanced. Therefore, the method has the great application prospects.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a modular switching method based on load balancing and QoS in a heterogeneous network. Background technique [0002] With the rapid development of mobile communication technology, the current communication network can no longer meet people's needs for various services, and the next generation mobile communication system will be in a heterogeneous environment where multiple wireless access networks exist and complement each other , such as WLAN, WiMAX, LTE, 5G, etc. These network convergences are gaining wide acceptance as a way to improve network performance. Therefore, how to provide users with seamless handover in a scenario where heterogeneous networks coexist is one of the difficulties to be solved urgently in next-generation heterogeneous networks. [0003] When considering the handover scheme, it should be noted that the handover parameters between different ne...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a modular switching method based on load balancing and QoS in a heterogeneous network, which solves the problems of long calculation time and poor network selection performance of traditional solutions; it can balance network load, Improve user satisfaction

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