A wireless multipath fading channel simulation method and channel simulator

Abstract

The invention discloses a wireless multipath fading channel simulating method and a channel simulator. The method comprises the following steps: measuring a channel between a transmitting antenna and a receiving antenna in actual environment, and measuring the frequency response of an actual measurement channel through frequency sweep; performing fourier inverse transform on the frequency response of the actual measurement channel so as to obtain the unit impulse response of the actual measurement channel; separating parameters in the unit impulse response of the actual measurement channel, and performing modeling so as to obtain a parameter model; storing the parameters of the model into a database; reading the parameters of the model, and generating the unit impulse response of a simulating channel; calculating a bit error ratio by utilizing Monte-Carlo simulation so as to complete channel simulation under the actual environment. The simulator comprises a channel measuring module, a module for extracting the unit impulse response of the actual measurement channel, a model building module, a model parameter extracting module and a simulating channel generating and verifying module. According to the wireless multipath fading channel simulating method and the channel simulator, disclosed by the invention, data can be measured in an actual manner, the model can be established, the bit error properties in different communication processes can be analyzed, and the channel obtained through simulation more conforms to the actual environment.

Description

technical field [0001] The invention relates to a wireless multipath fading channel simulation method and a channel simulator, belonging to the technical field of wireless communication. Background technique [0002] With the emergence of applications such as mobile Internet, high-definition multimedia, and the Internet of Things, mobile data traffic will explode in the future. In order to solve this problem, the domestic fourth-generation mobile communication system (4G) has been put into commercial use, and the research and development of the fifth-generation mobile communication system (5G) has also been carried out. At the same time, in order to increase system capacity, 4G and 5G systems will adopt a dense small cell network structure indoors. Therefore, in 4G and 5G, the channel propagation characteristics in specific indoor scenarios directly affect the performance of the communication system, and it plays a decisive role in the design of communication signals. Howe...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a wireless multipath fading channel simulation method and a channel emulator to solve the problem that the channel environment generated by the existing simulation process is quite different from the world environment. question

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