Results 1 to 10 of about 10,557 (148)

基于DE-RBF 混合优化算法的微电网自适应下垂控制策略 [PDF]

open access: yes全球能源互联网, 2023
孤岛微电网因线路阻抗各异,采用传统下垂控制无法实现功率按分布式电源容量比例分配,会产生电压/频率偏差。为此,提出一种基于DE-RBF混合优化算法的自适应下垂控制策略。首先,构建下垂控制的两逆变器并联微电网系统动态模型,应用差分进化 (differential evolution,DE) 算法获得多个平衡点的优化下垂控制参数。为提高系统的动态响应速度与稳定性,通过训练径向基 (radial basis function,RBF) 神经网络,对每个平衡点参数进行校正。进而,通过增加RBF神经网络的隐含层数量,
吴丽珍, 魏建平, 丁安邦, 陈伟
doaj   +1 more source

User grouping and power allocation algorithm for UAV-aided NOMA network [PDF]

open access: yes, 2020
Copyright © 2020 The Author(s). To improve the transmission flexibility of emergency communication scenarios, a joint user grouping and power allocation algorithm was proposed for UAV-aided non-orthogonal multiple access (NOMA) system.
Huang, Z, Li, G, Lin, J, Liu, T, Xu, Y
core   +4 more sources

Performance analysis and power optimization for FH secure communication under frequency and phase mismatch [PDF]

open access: yes, 2022
The artificial noise (AN) shielded frequency hopping (FH) secure communication can counteract electromagnetic interference and wiretapping, but its carrier frequencies change rapidly within a wide bandwidth which will raise the level of carrier frequency
Changqing SONG   +3 more
core   +1 more source

Joint optimization of trajectory and resource allocation for UAV integrated radar and communication system [PDF]

open access: yes, 2021
For the flexible and efficient area detection and data transmission tasks, the joint optimization of time resource allocation, power resource allocation and the trajectory for UAV (unmanned aerial vehicle) trajectory for airborne IRCS (integrated radar ...
Hui TIAN   +4 more
core   +1 more source

DNN-based Sub-6 GHz assisted millimeter wave network power allocation algorithm [PDF]

open access: yes, 2021
Aimed at the problems of the signaling cost and power consumption in the power control measurement of the millimeter wave system, as well as the complexity caused by iteration operations, a millimeter wave link power allocation prediction algorithm using
Changyin SUN   +3 more
core   +1 more source

Spectral clustering-based energy-efficient resource allocation algorithm in heterogeneous cellular ultra-dense network [PDF]

open access: yes, 2021
In order to solve problems of high power consumption, spectrum shortage and low energy efficiency in the ultra-intensive 5G mobile communication scenario, a resource allocation algorithm based on the maximum energy efficiency for the two-layer ...
Jiani SUN   +4 more
core   +1 more source

Power allocation algorithm of full duplex cognitive relay network based on energy harvesting [PDF]

open access: yes, 2020
To alleviate the shortage of spectrum resources and improve the power utilization of cognitive radio networks,a resource allocation algorithm of full duplex cognitive relay networks with energy harvesting was proposed.In the algorithm,the coefficient for
Liuke HAN, Meijuan ZHANG, Shibing ZHANG
core   +1 more source

Wireless Autonomous Power Flow Control in Converter-Fed Microgrids [PDF]

open access: yes, 2014
When total apparent power of the energy storage system (ESS) interfacing converter is fixed, the higher the requirement on reactive power in the microgrid system with distributed multiple converters, the weaker the ability of ESS to balance theactive ...
Guerrero, Josep M.   +4 more
core   +2 more sources

Power Allocation Algorithm Minimizing Outage Probability in Cognitive Radio Relay Network [PDF]

open access: yes, 2017
为提升认知无线中继网络的中断性能,通过分析系统中断概率及用户功率分配情况,提出一种最小化中断概率的功率分配算法。给出在主用户干扰约束和总功率约束; 条件下最小化中断概率的数学优化方程组,根据用户的最大发射功率与干扰电平阈值的受限关系,分别考虑分配功率不超过干扰电平阈值、中继节点功率受限于干扰; 电平阈值以及所有节点受限于干扰电平阈值这3种情况,对应提出3种最佳功率分配方案,并基于KKT条件求解最优值。实验结果表明,该功率分配算法与基于频; 谱共享以及基于机会主义中继选择的中断概率分析方法相比 ...
周豫苹, 朱春花, 朱权, 陈宝兴
core   +1 more source

Research on power allocation of integrated VLPC based on deep reinforcement learning [PDF]

open access: yes, 2022
A power allocation scheme for integrated visible light position and communication (VLPC) system based on deep reinforcement learning was proposed to achieve power allocation for communication positioning integration.First, the frame structure design of ...
Bing LI   +7 more
core   +1 more source

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