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基于DQN的跳频信号干扰决策方法研究 被引量:1
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作者 刘铮 冯永新 钱博 《沈阳理工大学学报》 CAS 2023年第3期9-15,共7页
跳频通信系统具备较强的抗搜索、抗截获和抗干扰能力。为实现对跳频信号的高效干扰,提出一种基于DQN的跳频信号干扰决策方法。通过对跳频信号进行时频分析和图像二值化处理获取信道状态,将其作为基于DQN算法构建的干扰决策网络输入数据... 跳频通信系统具备较强的抗搜索、抗截获和抗干扰能力。为实现对跳频信号的高效干扰,提出一种基于DQN的跳频信号干扰决策方法。通过对跳频信号进行时频分析和图像二值化处理获取信道状态,将其作为基于DQN算法构建的干扰决策网络输入数据;以干扰功率、驻留时间和跳频频率集作为决策因子,依据跳频通信模型受到干扰时的误码率构建误差函数输出干扰动作;根据反馈参数迭代调整最佳干扰策略和动作优化。仿真结果表明:基于DQN的跳频信号干扰决策方法能够进行有效决策,且决策出的干扰动作可使跳频通信模型中的误码率约为13%时达到稳定,具有高效干扰的能力。 展开更多
关键词 跳频通信 时频分析 信号干扰决策 DQN
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Neighbour Peer Selection Scheme Based on Effective Capacity for Mobile Peer-to-Peer Streaming
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作者 夏海轮 王宁 曾志民 《China Communications》 SCIE CSCD 2013年第5期89-98,共10页
For Peer-to-Peer (P2P) streaming services in mobile networks, the selection of appropriate neighbour peers from candidate peers with demanding data is an important approach to improve Quality-of-Service (QoS). This pa... For Peer-to-Peer (P2P) streaming services in mobile networks, the selection of appropriate neighbour peers from candidate peers with demanding data is an important approach to improve Quality-of-Service (QoS). This paper proposes a novel Effective Capacity Peer Selection (ECPS) scheme based on effective capacity. In the ECPS scheme, the neighbour peer selection problem was modeled using the Multiple Attribute Decision Making (MADM) theory, which considered multiple factors of candidate peers, including Signal to Interference and Noise Ratio (SINR), residency time, power level, security, moving speed, and effective capacity. This model could increase the suitability of ECPS for wireless mobile environments. Then, the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) was used to solve the MADM problem and identify the preferred neighbour peers. Simulation results show that the ECPS scheme can improve the network throughput, reduce packet delay by about 82%, and almost double the packet delivery ratio of the mobile P2P streaming service. 展开更多
关键词 P2P mobile P2P streaming peer selection effective capacity MADM QoS
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