Site Selection Optimization Of 5G Network Base Station Based On Weighted Minimal Modular Ideal Point Method

Compared with 4G networks,5G has obvious advantages in satisfying the explosive growth of mobile data service demand.Currently,the planning and construction scheme of5 G network base station has become a key research content in the field of communication industry,and the optimization of 5G network base station location has become an important topic that operators and scholars at home and abroad pay attention to and are keen to study.At the beginning of 5G network base station construction,how to plan the base station site according to the base station site selection principle in order to select the optimal base station construction scheme has become the focus of attention of the four major network communication operators.Constructing a reasonable and effective mathematical model for 5G network base station site selection optimization and seeking scientific and effective solutions have become important problems to be solved urgently in the field of 5G network base station construction.Due to the increase of the frequency band of 5G network,the coverage range of signals is reduced.In this case,more network base stations must be built to meet the problem of signal coverage.In order to achieve the development goal set by 3GPP that the overall system capacity of 5G network can be increased 1000 times than that of 4G network system,micro-base station will be an indispensable important element.Therefore,compared with the 4G network dominated by macro stations,the key technology of 5G network architecture is the coexistence of macro stations and micro-base stations.The addition of 5G micro-base stations will not only enable network communication operators to organize networks flexibly in the most cost-effective way,but also improves network density and network coverage,so that the data transmission rate and network capacity based on 5G network technology will be higher than that of 4G network technology.In the research on the optimization of 5G network base station site selection,not only the reuse of new 5G network base station sites and 4G/3G/2G base station sites within the planning area should be considered,but also the co-construction and coexistence of 5G macro station and 5G micro-base station should be considered,especially the problem of signal interference among base stations: the signal interference between the macro station and the macro station,the signal interference caused by the micro-base station to the macro station,the signal interference caused by the micro-base station to the macro station,and the signal interference between the micro-base station and the micro-base station under the same station.This paper focuses on the optimization of the site selection of 5G network base stations.The main research contents are as follows: under certain parameters of other relevant network base stations,the construction cost,signal coverage rate and system capacity of5 G macro and micro base stations are taken as the optimization objectives.The signal interference caused by the coexistence of macro and micro base stations is taken as the constraint conditions,a mathematical model for multi-objective optimization of 5G network base station site selection is designed,the algorithm framework of weighted minimum-modulus ideal point method for the site selection of 5G network base stations is presented.After that,three common network base station construction scenarios,namely traffic hotspot,dense urban area and ordinary urban area,were taken as examples to optimize the site selection of 5G network base station,and it was concluded that the construction ratio of macro base station and micro base station was about 1:21 in hotspot area,1:5 in dense urban are and 1:3 in common urban area.The research results of this paper can provide theoretical guidance and decision support for site selection in other regions and provide reference for 5G network base station planners and operators.