Large-scale UAV relay network channel simulation device and GPU real-time simulation method

Abstract

The invention discloses a large-scale UAV relay network channel simulation device and a GPU real-time simulation method. The large-scale UAV relay network channel simulation device includes a networknode dynamic topology parameter input unit, a network channel parameter estimation unit, a network channel modeling and generating unit, a network channel combination superposition unit, a network node transmitting signal input unit and a network node receiving signal output unit. The simulation system is flexible and general, and supports the dynamic adjustment of the network size and topology structure; the signal, interference and noise of each relay link are modeled using the equivalent method, the complexity of system simulation is greatly simplified; and for different communication scenes, different nodes are supported to adopt different channel models and updated in real time, the mutual interference between network nodes are considered.

Description

Technical field: [0001] The invention relates to a large-scale unmanned aerial vehicle relay network channel simulation device and a GPU real-time simulation method, belonging to the field of wireless information transmission, especially for the future large-scale unmanned aerial vehicle relay network system, between each communication node and the relay node A wireless channel simulation device, and a real-time simulation method utilizing a GPU platform. . Background technique: [0002] As an electromagnetic wave transmission medium, wireless channels directly affect the transmission quality and performance of wireless communication systems. The modeling and generation of wireless channels refers to establishing a channel model that is consistent with the actual propagation environment, and accurately and effectively restoring its channel characteristics through computer software simulation or hardware simulation. It is crucial for optimal design, evaluation and verificati...

AI Technical Summary

Problems solved by technology

Commercial channel simulators can implement commonly used channel fading models, such as Rayleigh fading, Rice fading, Nakagami fading, lognormal fading, and Suzuki fading models. However, such simulators are generally only for cellular mobile communication applications. And often only consider the realization of a single statistical model, which cannot meet the requirements of large-scale network node communication channel simulation

[0006] The real-time simulation calculation of the communication channel of a large-scale network node is very large and requires high real-time performance. If it is realized by hardware, it will consume a lot of hardware resources, making it difficult to realize; if it is realized by traditional PC-based software, the calculation speed is slow and cannot Meet real-time requirements

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