基于混沌遗传算法的D2D网络功率频谱分配研究

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论文研究-Power and Spectrum Allocation in D2D Networks Based on Coloring and Chaos Genetic Algorithm 本文研究的主要目标是解决当前D2D(Device-to-Device)网络中频谱资源的紧缺问题。为解决该问题,作者提出了基于着色混沌遗传算法的功率频谱分配算法。该算法可以在D2D网络中实现高效的频谱共享,从而提高网络的频谱利用率和通信质量。 D2D网络是当前蜂窝通信的一个重要的频谱共享技术,可以提供方便且高速的通信服务。然而,D2D网络中的频谱资源是一种稀缺资源,如何高效地分配和利用频谱资源是D2D网络研究的关键问题。 着色混沌遗传算法是一种基于着色理论和混沌理论的优化算法,该算法可以在D2D网络中实现高效的频谱分配。该算法的主要思想是将D2D网络中的设备分配到不同的颜色上,每个颜色对应不同的频谱资源。然后,使用混沌理论对频谱资源进行优化分配,以实现高效的频谱利用率。 在本研究中,作者首先对D2D网络中的频谱资源进行了分析,并提出了基于着色混沌遗传算法的功率频谱分配模型。然后,作者使用仿真实验对该模型进行了验证,结果表明该模型可以有效地提高D2D网络中的频谱利用率和通信质量。 本研究的结果对D2D网络的发展具有重要的意义,可以为D2D网络的研究和应用提供有价值的参考。同时,本研究也为其他频谱共享技术的研究和应用提供了借鉴和参考价值。 知识点: 1. D2D网络:D2D网络是一种设备之间的直接通信技术,可以提供方便且高速的通信服务。 2. 频谱资源紧缺:D2D网络中的频谱资源是一种稀缺资源,如何高效地分配和利用频谱资源是D2D网络研究的关键问题。 3. 着色混沌遗传算法:是一种基于着色理论和混沌理论的优化算法,可以在D2D网络中实现高效的频谱分配。 4. 频谱分配:频谱分配是D2D网络中的一种关键技术,用于分配和利用频谱资源。 5. 混沌理论:混沌理论是一种数学理论,用于描述复杂系统的行为和演化规律。 6. 着色理论:着色理论是一种数学理论,用于描述图形的着色问题。 7. 仿真实验:仿真实验是一种研究方法,用于验证和评估算法和模型的性能。 本研究基于着色混沌遗传算法的功率频谱分配算法可以有效地解决D2D网络中的频谱资源紧缺问题,从而提高D2D网络中的频谱利用率和通信质量。

Traditional network security situation prediction methods depend on the accuracy of historical situation value. Moreover, there are differences in correlation and importance among various network security factors. In order to solve these problems, a combined prediction model based on the temporal convolution attention network (TCAN) and bi-directional gate recurrent unit (BiGRU) network optimized by singular spectrum analysis (SSA) and improved quantum particle swarm optimization algorithm (IQPSO) was proposed. This model was first decomposed and reconstructed into a series of subsequences through the SSA of network security situation data. Next, a prediction model of TCAN-BiGRU was established for each subsequence, respectively. The TCN with relatively simple structure was used in the TCAN to extract features from the data. Besides, the improved channel attention mechanism (CAM) was used to extract important feature information from TCN. Afterwards, the before-after status of the learning situation value of the BiGRU neural network was used to extract more feature information from sequences for prediction. Meanwhile, an improved IQPSO was proposed to optimize the hyper-parameter of the BiGRU neural network. Finally, the prediction results of subsequence were superimposed to obtain the final predicted value. In the experiment, on the one hand, the IQPSO was compared with other optimization algorithms; and the results showed that the IQPSO has better optimization performance; on the other hand, the comparison with traditional prediction methods was performed through the simulation experiment and the established prediction model; and the results showed that the combined prediction model established has higher prediction accuracy.

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