Network layer performance simulation of G3 mobile communication system
A technology of a mobile communication system and a simulation method is applied in the simulation field of the network layer of the wireless communication system, and can solve the problems of limiting the application of the simulation results of the dynamic system, the slow speed of the dynamic simulation system, and the waste of resources.
Inactive Publication Date: 2009-10-28
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
Such a huge waste of resources seriously affects the speed of dynamic system simulation, and also severely limits the application of dynamic system simulation results in network planning and optimization. Therefore, people in the industry are exploring how to solve the problem that the speed of dynamic simulation system is too slow
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[0047] see figure 2 , the present invention is a kind of fast simulation method of network layer performance of the third generation mobile communication system, which is used to simulate the number of system activated users and the system call failure probability performance curve under load control. The method mainly includes the following three operation steps :
[0048] (1) Set various parameters of the simulation system, perform dynamic simulation of the network layer, and obtain high call intensity λ high The system network layer performance curve under ;
[0049] (2) According to the minimum mean square error criterion, the high call intensity λ high The network layer performance curve of the system below is substituted into the prediction model, and the two prediction model parameters of the mean value and variance of the single user load are searched;
[0050] (3) Substituting the two prediction model parameters obtained into the prediction model to predict the lo...
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A fast simulation method for network layer performance of the third generation mobile communication system is used for simulation of the number of system activated users and the system call failure probability performance curve under load control. This method first performs dynamic simulation under high call intensity, and then establishes a steady-state prediction model for users' dynamic random access network under load control, and searches out the average value and variance of single-user load required by the prediction model according to the minimum mean square error criterion Two parameters, and then, according to the prediction model, the network performance curve under low call intensity is predicted. This method can guarantee the accuracy of the performance curve, and at the same time, it can easily compress the dynamic simulation time to 1 / 3 of the original, and the greater the call intensity changes, the more the simulation time is compressed. In addition, when the call intensity of the user is very small, and the memory and CPU resource requirements of the dynamic simulation system exceed the capabilities of the personal computer, the method can still give good simulation prediction results with the personal computer.
Description
technical field [0001] The invention relates to a fast simulation method for network layer performance of a third-generation mobile communication system, and belongs to the technical field of network layer simulation for wireless communication systems. Background technique [0002] After the mobile communication system experienced the rapid development process of the first-generation analog technology mobile communication business, it entered the era of the second-generation digital communication system; and the third-generation mobile communication system (3G) is a booming Introduced into the agenda in development. In today's Internet data business trend of continuous heating up, under the background of continuous improvement of fixed access rate (HDSL, ADSL, VDSL) services, the third-generation mobile communication system has also seen its own dawn, and is becoming more and more popular for telecom operators, communication Equipment manufacturers and ordinary users are co...
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IPC IPC(8): H04Q7/34H04M3/36H04W24/06
Inventor 许文俊贺志强牛凯吴伟陵
Owner BEIJING UNIV OF POSTS & TELECOMM