Improved OPNET-HLA-based large-scale network simulation method
A technology of OPNET-HLA and network simulation, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems that the distributed simulation of network performance parameters cannot be realized, so as to reduce memory consumption, expand the application range, and reduce data The effect of the number of conversions
Active Publication Date: 2016-10-26
XIDIAN UNIV
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[0006] The purpose of the present invention is to overcome the defects in the above-mentioned prior art, and propose a large-scale network simulation method based on improved OPNET-HLA, which is used to solve the problem that the existing OPNET-HLA large-scale network simulation method cannot realize the impact on network performance. Technical Problems of Parametric Distributed Simulation
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[0032] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] refer to figure 1 , the structure of the simulation system of the present invention includes a subnetwork unit N1, a subnetwork unit N2, a control unit, other units and an operation support environment RTI.
[0034] Subnet unit N1 includes user A, user B, router and HLA agent, user A and user B are connected through a wired router, user A and user B are connected to HLA agent through a logical link; subnet unit N2 includes user C and In the HLA agent, user C is connected to the HLA agent through a logical link; where user A, user B, and user C are source end users or destination end users.
[0035] A control unit, used to control the simulation state, collect simulation results, etc.;
[0036] Other units are used to expand the functions of the simulation system. For example, this unit can be a data...
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The present invention proposes an improved OPNET-HLA-based large-scale network simulation method. The objective of the invention is to solve the technical problem of the incapability of an existing OPNET-HLA-based large-scale network simulation method to realize distributed simulation of network performance parameters. The method of the invention includes the following steps that: network topology is divided, so that a plurality of sub-network units can be obtained; user necessary information of the plurality of sub-network units is obtained by doing statistics, so that a global user information table can be generated; destination end users randomly selected from the global user information table are added into an OPNET pre-connection information table; direct mutual mapping is carried out on OPNET grouped data and HLA data, so that an efficient data transfer HLA agent can be constructed; an OPNET standard protocol model is modified by using the constructed HLA agent; and the modified model is utilized to simulate network performance parameters. With the method of the invention adopted, distributed simulation of the performance parameters of large-scale networks can be realized efficiently. The method can be applied to the performance evaluation of the large-scale networks.
Description
technical field [0001] The invention belongs to the technical field of communication, relates to an OPNET-HLA-based network simulation method, in particular to an improved OPNET-HLA-based large-scale network simulation method, which can be used for performance evaluation of large-scale networks. Background technique [0002] As the scale of the network becomes larger and larger, the traditional experience-based network design method can no longer meet the needs, so a new method of network planning and design is increasingly needed to improve the objectivity of network design and the reliability of design results and reduce the investment risk of network construction. [0003] The network emulation technology is raised under the pull of this demand. It uses mathematical modeling and statistical analysis methods to simulate network behavior, thereby obtaining the characteristic parameters of a specific network, providing objective and reliable quantitative basis for network p...
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IPC IPC(8): H04L12/24
CPCH04L41/145
Inventor 权东晓李志刚朱畅华陈南易运晖何先灯赵楠裴昌幸
Owner XIDIAN UNIV