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2022 10th International Conference on Intelligent Computing and Wireless Optical Communications (ICWOC)最新文献

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Precise Key Frames Adversarial Attack against Deep Reinforcement Learning 精确关键帧对抗深度强化学习
Chunlong Fan, Yingyu Hao
Due to the extensive development of deep neural networks, such as strategy based neural networks, they are easy to be deceived and fooled, resulting in model failure or wrong decision. Because DRL has made great achievements in various complex tasks, it is essential to design effective attacks to build a robust DRL algorithm. So far, most of them are to separate the model from the environment and select effective disturbances through several input and output attempts to achieve the purpose of attack. Therefore, this paper proposes a way to predict the future critical state time and attack by observing each state of the environment without constantly observing the input and output of the model. It is verified in Atari game, which can effectively reduce the acquisition of cumulative rewards on the premise of high efficiency and concealment. This method is suitable for most application scenarios, and ensures the characteristics of efficient and covert attack.
由于深度神经网络,如基于策略的神经网络的广泛发展,它们很容易被欺骗和愚弄,导致模型失效或错误决策。由于DRL在各种复杂任务中取得了巨大的成就,因此设计有效的攻击是构建鲁棒DRL算法的关键。到目前为止,大多是将模型从环境中分离出来,通过多次输入输出的尝试,选择有效的干扰来达到攻击的目的。因此,本文提出了一种无需持续观察模型的输入和输出,通过观察环境的各个状态来预测未来临界状态时间和攻击的方法。在雅达利游戏中进行了验证,可以在保证高效率和隐蔽性的前提下,有效减少累积奖励的获取。该方法适用于大多数应用场景,并保证了攻击的高效隐蔽特性。
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引用次数: 1
A Physical-Layer Collision Awared All-Optical Time Slice Routing Optimization Method for High Reliable Low-Latency Communication in Transmission and Computing Resource Integration Networks 传输和计算资源集成网络中高可靠低延迟通信的物理层碰撞感知全光时间片路由优化方法
Chen Zhao, Nan Hua, Guanqin Pan, Jipu Li, Yanhe Li, Xiaoping Zheng
To provide determined network services, including high bandwidth, low data loss, low latency, and low jitter services, to transmission and computing resource integration networks, a novel routing optimization method is proposed. Based on physical-layer collision awareness and transparent packet duplication, delay and deletion, high-reliability and low-latency all-optical communication can be achieved. In addition, this method has the potential to be adapted to rapidly time-varying topologies and link lengths in wireless optical networks. In this paper, the processing and distribution of data packets in this routing optimization method are described; a structure of the all-optical switching node for supporting this routing optimization method is presented; and the influence of switching node performance, such as the maximum cache time, the maximum multicast packet number and the perception latency, on end-to-end availability are analyzed by simulation.
为了向传输和计算资源集成网络提供高带宽、低数据丢失、低延迟和低抖动等确定的网络服务,提出了一种新的路由优化方法。基于物理层碰撞感知和透明的分组复制、延迟和删除,可以实现高可靠性、低延迟的全光通信。此外,该方法具有适应无线光网络中快速时变拓扑和链路长度的潜力。本文描述了这种路由优化方法中数据包的处理和分配;提出了一种支持这种路由优化方法的全光交换节点结构;通过仿真分析了最大缓存时间、最大组播包数和感知延迟等交换节点性能对端到端可用性的影响。
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引用次数: 0
Wireless Channel Estimation in Shipbuilding Scenario Based on Reconfigurable Intelligent Surface 基于可重构智能表面的船舶场景无线信道估计
Xinhai Yan, Dongyao Wang, Ziping Wei, Bin Li
Channel State Information (CSI) estimation is a very important part in the wireless communication system within the complex shipbuilding scenario. The estimation accuracy determines the rationality of the design of the precoding module in the whole communication system, and influence the spectrum efficiency and channel capacity. This paper firstly summarizes the traditional channel estimation technologies and analyzes their strengths and weaknesses. Then, with the low-rank property of channel matrix under the complicated electromagnetic environment within the shipbuilding scenario, this work proposes a fast estimation scheme for high-precision channel state information, which balances two very important but contradictory optimization objectives for channel estimation, i.e. computation complexity and accuracy. While greatly reducing the time complexity of channel estimation, the proposed method also greatly improves the estimation accuracy, which is verified by the simulation results.
信道状态信息估计是复杂船舶环境下无线通信系统的重要组成部分。预编码模块的估计精度决定了整个通信系统中预编码模块设计的合理性,影响着频谱效率和信道容量。本文首先总结了传统的信道估计技术,分析了它们的优缺点。然后,利用舰船复杂电磁环境下信道矩阵的低秩特性,提出了一种高精度信道状态信息的快速估计方案,平衡了信道估计中计算复杂度和精度两个非常重要但又相互矛盾的优化目标。该方法在大大降低信道估计时间复杂度的同时,也大大提高了信道估计精度,仿真结果验证了这一点。
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引用次数: 0
Combination Spectrum Sensing Algorithm for Wireless Sensor Network Based on Random Forest 基于随机森林的无线传感器网络组合频谱感知算法
Chong Tan, Jinshan Chen, Sufang Chen, Chao Li, Hong Liu, Min Zheng
In this paper, a multi-conditional spectrum sensing combination algorithm based on random forest is proposed to address the current shortage of spectrum resources in the sensor network. The algorithm combines sensor's velocity, signal energy, the traces, and the average eigenvalue of the covariance matrix as random forest characteristic parameters, which are achieved through the strong multi-classification ability of random forest. To improve the successful rate of spectrum sensing and the utilization rate of the spectrum, we focus on analyzing the selection of parameter in theory as well as the low signal-to-noise ratio caused by channel fading and shadow effect. Meanwhile, the Doppler effective caused by car moving is also our consideration. Under low signal-to-noise ratio, the simulation results show that the proposed algorithm has better detection performance than existing spectrum sensing algorithms.
针对当前传感器网络中频谱资源不足的问题,提出了一种基于随机森林的多条件频谱感知组合算法。该算法将传感器的速度、信号能量、轨迹和协方差矩阵的平均特征值作为随机森林的特征参数,通过随机森林强大的多分类能力来实现。为了提高频谱感知的成功率和频谱利用率,重点从理论上分析了参数的选择以及信道衰落和阴影效应导致的低信噪比。同时,汽车运动引起的多普勒效应也是我们考虑的因素。在低信噪比下,仿真结果表明,该算法比现有的频谱感知算法具有更好的检测性能。
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引用次数: 0
Research on Modulation Mode Identification of PSK Signal Based on M-th Power Spectrum Features 基于m功率谱特征的PSK信号调制模式识别研究
Jinfeng Yang, Zhangjian Qin, Qin Zhang, Tanzheng Yang
With the variety and complexity of communication signal modulation, it is more important and urgent to solve the problem of modulation identification. The modulation identification of PSK signal is studied based on the features of M-th power spectrum. The M-th power spectrum of BPSK signal, QPSK signal, OQPSK signal, DQPSK signal and π/4-DQPSK signal are simulated by Matlab. The features of M -th power spectrum of these five signals are summarized through the simulation results. Based on the results, a set of identification rules and identification process are designed, which can be used for intra-class identification of PSK signals.
随着通信信号调制的多样性和复杂性,解决调制识别问题显得更加重要和迫切。基于功率谱的m谱特征,研究了PSK信号的调制识别。利用Matlab对BPSK信号、QPSK信号、OQPSK信号、DQPSK信号和π/4-DQPSK信号的m功率谱进行了仿真。通过仿真结果总结了这五种信号的M功率谱特征。在此基础上,设计了一套可用于PSK信号类内识别的识别规则和识别流程。
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引用次数: 1
Recommendation Ranking Method Combining Graph Convolutional Network and Factorization Machine 结合图卷积网络和分解机的推荐排序方法
Jing Yu, Wenhai Liu, Mingxing Zhou, Yunwen Chen, Daqi Ji, Na Sai
With the rapid development of graph neural network technology and the wide application of personalized recommender systems in the industry, how to better apply graph representation learning to recommender systems to continuously improve the recommendation effect and improve the user experience has become a hot field of the industry research. Based on hot issues such as sparse feature data, cold start, and multi-feature combination in massive data, this paper proposes a personalized recommendation ranking method that combines graph convolutional network and factorization machine. The method represents the network relationship between users and items based on the graph structure and generates the graph embeddings on the hyperparameter space through graph representation learning, uses the factorization machine to combine the learning of four categories of features of user attributes, item attributes, interaction, and context, and generates the vector representation separately, and finally predicts personalized recommendation score based on the ranking model. The comparison experiments of multiple groups of ranking methods show that the ranking learning method proposed in this paper is better than the baseline in six indicators of AUC, Logloss, UV_CTR, CVR, ATV and the exposure ratio of new items on the online e-commerce data set, which proves the effectiveness of the proposed method.
随着图神经网络技术的快速发展和个性化推荐系统在行业中的广泛应用,如何更好地将图表示学习应用到推荐系统中,不断提高推荐效果,改善用户体验,成为行业研究的热点领域。针对海量数据中特征数据稀疏、冷启动、多特征组合等热点问题,提出了一种结合图卷积网络和分解机的个性化推荐排序方法。该方法基于图结构表示用户与物品之间的网络关系,并通过图表示学习在超参数空间上生成图嵌入,利用分解机将用户属性、物品属性、交互、上下文四类特征的学习结合起来,分别生成向量表示,最后基于排名模型预测个性化推荐分数。多组排序方法的对比实验表明,本文提出的排序学习方法在AUC、Logloss、UV_CTR、CVR、ATV以及新商品在在线电子商务数据集上的曝光率等6个指标上均优于基线,证明了所提方法的有效性。
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引用次数: 0
Path Privacy-Preserving Scheme Based on Oblivious Transfer Protocol 基于遗忘传输协议的路径隐私保护方案
Zian Yan, Jianhong Zhang
Vehicular ad hoc networks (VANETs) can provide information and technical support for vehicles connected to the Internet, improving driving efficiency. However, VANETs requires drivers to disclose their specific driving paths to the server, and this measure increases the risk of leaking privacy. Honest but curious service providers may want to know customers' other private messages by collecting information about vehicle paths. Therefore, we propose an architecture based on the oblivious transport protocol to solve the above problems. In this architecture, the driver can obtain the required RSU messages without revealing the specific route information to the server. At the same time, our scheme uses the Chinese residual theorem to revoke malicious users, protecting the legitimate interests of service providers and RSU s. Finally, AES achieves fast authentication between the vehicle and the RSU, ensuring that the user can obtain real-time information while driving. Experiments show that our system can reduce computational costs compare to other methods.
车辆自组织网络(VANETs)可以为连接到互联网的车辆提供信息和技术支持,提高驾驶效率。然而,VANETs要求司机向服务器披露他们的具体驾驶路径,这一措施增加了泄露隐私的风险。诚实但好奇的服务提供商可能想通过收集车辆路径信息来了解客户的其他私人信息。因此,我们提出了一种基于无关传输协议的体系结构来解决上述问题。在这个体系结构中,驱动程序可以获得所需的RSU消息,而无需向服务器透露特定的路由信息。同时,我们的方案利用中文残差定理撤销恶意用户,保护了服务提供商和RSU的合法权益。最后,AES实现了车辆与RSU之间的快速认证,保证了用户在行驶过程中能够获得实时信息。实验表明,与其他方法相比,该系统可以降低计算成本。
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引用次数: 0
Analysis and Research of Information Collection Method Based on Penetration Test 基于渗透测试的信息采集方法分析与研究
Ayinuer Nuertai, Yasen Aizezi, Muyesaier Maerdan
Information collection is an important stage of penetration testing on the target. Only by mastering enough information of the target host or website can we attack the target host or website more effectively. Taking Baidu as the target, this paper analyzes and studies the methods used in the information collection of penetration test, and describes in detail what information needs to be collected and what tools need to be used for information collection. Information collection is of great significance in penetration test.
信息收集是目标渗透测试的重要环节。只有掌握足够的目标主机或网站信息,才能更有效地攻击目标主机或网站。本文以百度为目标,对渗透测试信息收集的方法进行了分析和研究,详细描述了需要收集哪些信息,需要使用哪些工具进行信息收集。信息采集在渗透测试中具有重要意义。
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引用次数: 0
FPGA Based Traffic Sign Detection Using Support Vector Machine and Hybrid Filters 基于FPGA的支持向量机和混合滤波器交通标志检测
Estanislao Epota Oma, J. Zhang, Ziyi Lv
Aiming at the problems of low recognition accuracy and algorithm efficiency of existing recognition methods for traffic signs, a Principal Component Analysis-Support Vector Machine (PCA-SVM) road traffic sign recognition method based on grid search was proposed. In this method, the principal component analysis (PCA) method is used to reduce the dimensionality of the traffic signs, and the principal component features of the traffic signs are extracted. The SVM classifier with optimized parameters realizes the recognition of traffic signs. Through experimental simulation and analysis and comparison with other existing traffic sign recognition algorithms, the experimental results show that the method in this paper can ensure high recognition accuracy, and the algorithm efficiency is significantly improved. The system is implemented on a Spartan-6-FPGA. For image acquisition, an off-the-shelf car camera is used. The developed system is able to reliably detect traffic signs on short distances on static images as well as on image streams.
针对现有交通标志识别方法识别精度低、算法效率低等问题,提出了一种基于网格搜索的主成分分析-支持向量机(PCA-SVM)道路交通标志识别方法。该方法采用主成分分析(PCA)方法对交通标志进行降维,提取交通标志的主成分特征。优化参数的SVM分类器实现了交通标志的识别。通过实验仿真和分析,并与现有的其他交通标志识别算法进行比较,实验结果表明,本文方法能够保证较高的识别精度,算法效率显著提高。该系统在spartan -6 fpga上实现。对于图像采集,使用了一个现成的汽车摄像头。所开发的系统能够在静态图像和图像流上可靠地检测短距离的交通标志。
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引用次数: 0
A New Method to Calculate Complex Cramér-Rao Bound for Line Spectrum Estimation with Multiple Measurement Vectors 一种计算多测量向量线谱估计复cram<s:1> - rao界的新方法
Lin Han, R. Fu, Xian Zhu, Yanyu Chen, Huiliang Ge
A new method to calculate the complex Fisher information matrix (FIM) and the Cramér-Rao bound (CRB) is proposed for line spectrum estimation (LSE) with multiple measurement vectors (MMVs), The detailed theoretic calculation process is presented in the text. Finally, numerical results are conducted not only to verify accuracy of the theoretical result by comparing against another method to calculate complex CRB, but also to demonstrate the effectiveness of CRB as the performance metric.
提出了一种计算多测量向量线谱估计的复Fisher信息矩阵(FIM)和cram - rao界(CRB)的新方法,给出了详细的理论计算过程。最后,通过与另一种计算复杂CRB的方法进行比较,验证了理论结果的准确性,并验证了CRB作为性能指标的有效性。
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引用次数: 0
期刊
2022 10th International Conference on Intelligent Computing and Wireless Optical Communications (ICWOC)
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