Multi-service Dynamic Bandwidth Allocation Method in Heterogeneous Wireless Network Environment

Abstract

The invention belongs to the technical field of wireless communication and discloses a multi-service dynamic bandwidth distribution method in a heterogeneous wireless network environment. The multi-service dynamic bandwidth distribution method comprises the following steps of: S1, when receiving a service access request, collecting multi-domain information of each network; S2, classifying services required to be accessed into variable bit rate (VBR) services and constant bit rate (CBR) services, and generating a VBR service bandwidth distribution planning strategy according to the characteristics of the VBR services; S3, selecting a corresponding analytic hierarchy process and judging a matrix, and calculating an adaptability factor adaptive to each available access network by applying the analytic hierarchy process; and S4, according to different network states, generating an efficiency fair bandwidth distribution strategy for introducing the adaptability factors by applying an efficiency function, and distributing bandwidth for the service access request by multiple networks. The multi-service dynamic bandwidth distribution method disclosed by the invention solves the problem that user fairness guarantee and system performance enhancement can not be balanced, overall performance of system is enhanced by fully utilizing network heterogeneity, and resource utilization rate of the system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a multi-service dynamic bandwidth allocation method in a heterogeneous wireless network environment. Background technique [0002] According to the different business characteristics and user requirements, a variety of wireless access technologies have emerged. The vigorous development of various wireless communication technologies makes the future wireless communication system present a heterogeneous pattern. With the evolution of information and communication technology, the wireless access network is developing towards the trend of high speed, broadband and ubiquitous. Faced with so many wireless access networks with different characteristics, how to design a unified wireless communication network resource management strategy to fully accommodate them, truly fundamentally realize flexible and optimized wireless resource allocation, and provide users...

AI Technical Summary

Problems solved by technology

At the same time, in hotspot coverage areas, due to the increase in the number of users and business load, resource shortages or unbalanced loads between networks may be caused, resulting in a significant increase in business blocking and dropped calls. This will not only affect the user's business experience, but also It will cause a lot of resource consumption, how to achieve load balancing between networks under heavy load, how to ensure user fairness caused by uneven network coverage in the case of heterogeneous networks, and how to ensure efficient bandwidth utilization of different wireless access networks Efficiency, increasing network capacity and avoiding network overload, optimizing resource allocation in joint radio resource management, realizing bandwidth allocation in a heterogeneous wireless access environment, efficient use of wireless resources, reasonable resolution of user fairness, and timely satisfaction of user business needs , which poses a great challenge to wireless resource allocation in heterogeneous networks

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