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2021 IEEE 9th International Conference on Information, Communication and Networks (ICICN)最新文献

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Optimal Adjustment of UCRNs in Cooperative Engagement System Based on GDMPC-MOABC 基于GDMPC-MOABC的协同作战系统中UCRNs的最优调整
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673839
Y. Zhong, L. Wan
Aiming at the optimal adjustment of unmanned communication relay nodes (UCRNs) problem in manned/ unmanned aerial vehicle cooperative engagement system, this paper established a two–layer mathematical model to describe it and solved it through a greedy distributed model predictive control (GDMPC) and multi–objective artificial bee colony (MOABC) method. Problem description and element definition, kinematic model of unmanned communication relay nodes, modeling of the problem, GDMPC framework and subsystem optimization solution based on MOABC were in sequence presented, and finally, simulation experiments were carried on to verify the correctness of the model and the effectiveness of the algorithm.
针对有人/无人机协同作战系统中无人通信中继节点(UCRNs)的最优调整问题,建立了两层数学模型进行描述,并采用贪婪分布式模型预测控制(GDMPC)和多目标人工蜂群(MOABC)方法进行求解。依次提出了问题描述与元素定义、无人通信中继节点运动学模型、问题建模、GDMPC框架和基于MOABC的子系统优化方案,最后进行了仿真实验,验证了模型的正确性和算法的有效性。
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引用次数: 0
An Activatable DDoS Defense for Wireless Sensor Networks 无线传感器网络的可激活DDoS防御
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673926
Lijia Xie, X. Xiao, Yiming Shi, Cheng Zhang, Jie Jiang
Wireless Sensor Network (WSN) has covered broad areas as a promising networking technique. The sensor nodes are facing multiple menaces, especially Distributed Denial of Attack (DDoS). Yet, existing DDoS mitigations are inadequate to be applied in WSNs due to the constrained resources. In this paper, we propose an activatable DDoS defense which is adaptable for WSNs. We design an activation mechanism to achieve the state transition of nodes with adjustable overhead. Furthermore, a probabilistic bootstrap percolation in connected Random Geometric Graph (RGG) is utilized to model the dynamic activation process. We analyze the critical threshold of phase transition theoretically and provide the proof. Finally, we numerically analyze the process and verify the theoretical results by comprehensive simulations.
无线传感器网络(WSN)作为一种极具发展前景的网络技术,已经覆盖了广泛的领域。传感器节点面临着多种威胁,尤其是分布式拒绝攻击(DDoS)。然而,由于资源的限制,现有的DDoS缓解措施不足以应用于wsn。本文提出了一种适用于无线传感器网络的可激活DDoS防御方法。我们设计了一种激活机制来实现开销可调的节点状态转换。在此基础上,利用连通随机几何图(RGG)中的概率自举渗流模型对动态激活过程进行建模。从理论上分析了相变的临界阈值,并给出了证明。最后,对该过程进行了数值分析,并通过综合仿真验证了理论结果。
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引用次数: 0
A 40Gbit/s Alternate Mark Inversion Encoded Free Space Optical System 40Gbit/s交替标记反转编码自由空间光学系统
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673880
Jie Yang, Yufeng Shao, An-rong Wang, Zhuang Wang, Qinzheng Hu, Qiming Yang, N. Yu
A 40Gbit/s Free Space Optical (FSO) communication system using Alternate Mark Inversion (AMI) encoded signals is designed in this scheme. It uses Dense Wavelength Division Multiplexing (DWDM) multiplexer to complete the simultaneous multiplexing of 16-channel AMI encoded signals, realizing the transceiver and transmission of 40Gbit/s optical signal. Modeled analysis the system, numerical simulation tested the time domain diagram, spectrum diagram, eye diagrams, bit error rate (BER) and other indicators of the DWDM-AMI signal before and after transmission through the 1km FSO channel. The results show that the 192.4THz AMI signal best decoding decision point is 0.593, Q factor is 15.9; The 193.1THz AMI signal best decoding decision point is 0.597, Q factor is 15.1.
采用该方案设计了一个40Gbit/s的自由空间光通信系统,该系统采用交替标记反转(AMI)编码信号。采用密集波分复用(DWDM)复用器,完成16路AMI编码信号的同时复用,实现40Gbit/s光信号的收发。对系统进行建模分析,数值仿真测试了DWDM-AMI信号通过1km FSO信道传输前后的时域图、频谱图、眼图、误码率(BER)等指标。结果表明:192.4THz AMI信号最佳解码决策点为0.593,Q因子为15.9;193.1THz AMI信号最佳解码决策点为0.597,Q因子为15.1。
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引用次数: 3
Performance Analysis of Mixed MIMO-RF/MIMO-FSO DF Relaying Using Globally Coupled Low Density Parity Check (GC-LDPC) Codes and Diversity Techniques 采用全局耦合低密度奇偶校验码和分集技术的MIMO-RF/MIMO-FSO - DF混合中继性能分析
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673895
I. Gueye, I. Diop, I. Dioum, Papis Ndiaye
This article focuses on the performance analysis of cooperative systems hybridizing MIMO-RF/MIMO-FSO and error correcting codes including GC-LDPC codes in FSOs. In this double-hop relay system composed of links with several inputs and multiple outputs at radio frequency and with multiple inputs and multiple outputs in FSO. In this system the source transmits the information to the relay by RF links, the relay processes the information received from the source and retransmits it to the destination by FSO links. To decode the data we used two-phase local-global decoding and to eliminate interference between source-relay links and relay-destination links we use interference alignment (IA) technique. It is also assumed that the source-relay link undergoes Rayleigh fading, while the relay-destination links undergo Gamma-Gamma model fading. Using DF relay technology, hybrid MIMO-RF/MIMO-FSO systems combine the advantages of RF and FSO communication technologies. The use of hybrid MIMO- RF/MIMO-FSO cooperative transmission systems improves network reliability and transmission. In this work, we carried out a simulation study on the distribution of the total transmission power at the source and the relay level to understand the best allocations between the source and the relay in order to guarantee a good quality of reception of the data transmitted to the destination. This work also presents studies on the different combimaision techniques. The results of our simulations show that the MIMO-RF/MIMO-FSO system based on GC-LDPC codes gives better performance compared to MIMO-RF/FSO and RF/FSO systems based on the same codes but also with conventional systems without the use of codes.
本文重点分析了MIMO-RF/MIMO-FSO与fso中GC-LDPC码等纠错码相结合的协同系统的性能。在这种双跳中继系统中,在无线电频率上有多个输入和多个输出链路,在FSO中有多个输入和多个输出链路。在该系统中,源端通过射频链路将信息发送到中继端,中继端对从源端接收到的信息进行处理后,通过FSO链路将信息转发到目的端。为了解码数据,我们使用了两阶段局部-全局解码,为了消除源-中继链路和中继-目的地链路之间的干扰,我们使用了干扰对齐(IA)技术。还假设源中继链路经历瑞利衰落,而中继-目的链路经历Gamma-Gamma模型衰落。使用DF中继技术,混合MIMO-RF/MIMO-FSO系统结合了RF和FSO通信技术的优点。混合MIMO- RF/MIMO- fso协同传输系统的使用提高了网络的可靠性和传输能力。在这项工作中,我们对总发射功率在源和中继级的分布进行了仿真研究,以了解源和中继之间的最佳分配,以保证传输到目的地的数据的良好接收质量。本文还介绍了不同组合技术的研究。仿真结果表明,基于GC-LDPC编码的MIMO-RF/MIMO-FSO系统比基于相同编码的MIMO-RF/FSO系统和基于相同编码的RF/FSO系统具有更好的性能,也比不使用编码的传统系统具有更好的性能。
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引用次数: 0
A Routing Strategy Based on the betweenness Centrality for Multi-layers Complex Networks 基于中间性中心性的多层复杂网络路由策略
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9674025
Yue Zhuo, Yu Liang, Yu Huang, Yixiao Cao, Jinfeng Nie, Yu Qi
In networked systems, traffic is one of the most fundamental dynamical processes. Since the betweenness of nodes in complex networks can theoretically represent the traffic load of nodes, a routing strategy for two-layer complex networks is proposed based on the betweenness centrality. With the routing strategy, the packets are set to bypass the nodes with large betweenness in the logical layer network and the physical layer network. The traffic loads can be redistributed from the central nodes to the noncentral nodes efficiently. The routing strategy can alleviate the congestion and promote the traffic capacity of multilayers complex networks. Compared to the shortest path routing (SPR) and improved active routing (IAR) strategy, simulation results show that the two-layer complex networks capacity is considerably enhanced when $beta$=0.75..
在网络系统中,流量是最基本的动态过程之一。由于复杂网络中节点的中间度理论上可以表征节点的流量负载,提出了一种基于中间度中心性的二层复杂网络路由策略。该路由策略将报文设置为绕过逻辑层网络和物理层网络中间隔较大的节点。可以有效地将业务负载从中心节点重新分配到非中心节点。该路由策略可以缓解多层复杂网络的拥塞,提高网络的流量容量。仿真结果表明,与最短路径路由(SPR)和改进主动路由(IAR)策略相比,当$beta$=0.75时,两层复杂网络的容量得到了显著提高。
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引用次数: 3
Applications of Machine Learning on Nonlinear Frequency Division Multiplexing Optic-Fiber Communication Systems 机器学习在非线性频分复用光纤通信系统中的应用
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673978
Lixia Xi, Jiacheng Wei, Wenbo Zhang
Nonlinear frequency division multiplexing system becomes one of the promising candidates for overcoming the fiber’s nonlinearity limitations. To improve the system’s performance, machine learning was introduced to the NFDM systems in the past few years. In this paper, an overview on the applications of machine learning in the NFDM systems is presented.
非线性频分复用系统是克服光纤非线性限制的一个很有前途的候选系统。为了提高系统的性能,机器学习在过去几年被引入到NFDM系统中。本文综述了机器学习在NFDM系统中的应用。
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引用次数: 0
Novel Feature Fusion for Infrared Small Target Detection Feature Pyramid Networks 红外小目标检测特征金字塔网络的新型特征融合
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673844
Xiaozhong Tong, Zhen Zuo, Bei Sun, Junyu Wei
Detecting infrared small target that lack texture features and shape information in cluttered environments is a challenging task. In this paper, we propose a novel feature fusion approach of feature pyramid networks (FPN) for effective detection of infrared small target. To extract the feature maps of infrared small target in different layers of the network and to fuse them effectively, we propose a multi-scale feature fusion module. Experimental results show that our proposed method performs much better than traditional approaches for infrared small target detection. In particular, our proposed method still achieves satisfactory results compared to other deep learning-based methods. In addition, we conducted ablation study of the network structure and the experimental results demonstrate the effectiveness of our proposed novel FPN.
在杂乱环境中检测缺乏纹理特征和形状信息的红外小目标是一项具有挑战性的任务。本文提出了一种新的特征金字塔网络(FPN)融合方法,用于红外小目标的有效检测。为了提取不同层红外小目标的特征图并进行有效融合,提出了一种多尺度特征融合模块。实验结果表明,该方法对红外小目标的检测效果明显优于传统方法。特别是,与其他基于深度学习的方法相比,我们提出的方法仍然取得了令人满意的结果。此外,我们还对网络结构进行了烧蚀研究,实验结果证明了我们提出的新型FPN的有效性。
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引用次数: 0
Surface Defect Detection Algorithm of Aluminum Based on Improved Faster RCNN 基于改进更快RCNN的铝表面缺陷检测算法
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673969
Lu Li, Zhanjun Jiang, Yanneng Li
There are some problems in the surface defect detection of industrial aluminum products, such as small defect samples, extreme length-to-width ratio of defect, low precision of small defect detection, etc. To solve these problems, an aluminum surface defect detection algorithm is proposed based on improved Faster RCNN. The number of defect samples is increased by data augmentation, and the residual network ResNet50 is employed as the backbone feature extraction network to extract aluminum defect features. Then the path enhancement feature pyramid network (PAFPN) is added to the backbone feature extraction network to form a multi-scale feature map which strengthens the utilization of feature information from the lower layers. Soft non-maximum suppression (Soft-NMS) is used to further improve the detection performance of the algorithm. Results show that the mean average accuracy (mAP) of the proposed algorithm is 78.8%, which is 2.2% higher than the original algorithm.
工业铝制品表面缺陷检测存在缺陷样品偏小、缺陷长宽比偏大、小缺陷检测精度低等问题。为了解决这些问题,提出了一种基于改进的Faster RCNN的铝表面缺陷检测算法。通过数据增强增加缺陷样本的数量,采用残差网络ResNet50作为骨干特征提取网络提取铝缺陷特征。然后在主干特征提取网络中加入路径增强特征金字塔网络(PAFPN),形成多尺度特征图,增强了对底层特征信息的利用。采用软非最大抑制(Soft- nms)进一步提高算法的检测性能。结果表明,该算法的平均准确率(mAP)为78.8%,比原算法提高了2.2%。
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引用次数: 2
Analysis of a Multi-directional Data Access Control System for Underwater Wireless Network using UAN MAC Protocols 基于UAN MAC协议的水下无线网络多向数据访问控制系统分析
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9673921
Mohammad Nizamul Haque
Underwater wireless sensor networks (UWSNs) face new threats and prospects as a result of recent technological advances. Providing large-scale, and high spatial-temporal resolution of ocean exploration data is highly crucial in environmental monitoring, ocean energy production, and marine science research. Underwater wireless communications, however, face many challenges, including bandwidth constraints, multipath propagation, and fading, long end-to-end propagation latency, and limited power supply with batteries. Underwater monitoring tasks are seriously hampered by data losses due to low link qualities and collisions. Therefore, in UWSN, the design and implementation of an energy-aware, secure, and less propagation delay concern MAC protocol is important. This paper presents a simulation-based performance analysis for a multi-directional data access control system using UAN-CW, UAN-RC, and UANALOHA MAC protocols in an underwater wireless network. A two-way half-duplex acoustic modem has been implemented to analyze the consumed and remaining energy of the network. To assess MAC protocols evaluation, we compared three MAC protocols focusing on throughput, delay, packet delivery ratio, and energy consumption. Simulations were carried out by using the ns3 simulation tool. The simulation results show that UAN-CW MAC protocol outperforms two protocols in respect of throughput, delay, packet delivery ratio, and energy consumption. However, the remaining energy for UAN-RC-MAC is higher than others.
随着技术的进步,水下无线传感器网络面临着新的威胁和前景。提供大尺度、高时空分辨率的海洋勘探数据在环境监测、海洋能源生产和海洋科学研究中具有重要意义。然而,水下无线通信面临着许多挑战,包括带宽限制、多径传播和衰落、长端到端传播延迟以及电池供电有限。由于链路质量低和碰撞导致的数据丢失严重阻碍了水下监测任务。因此,在UWSN中,设计和实现一种能量感知、安全、传播延迟少的MAC协议是非常重要的。本文对水下无线网络中采用wan - cw、wan - rc和UANALOHA MAC协议的多向数据访问控制系统进行了基于仿真的性能分析。实现了一种双向半双工声学调制解调器来分析网络的消耗和剩余能量。为了评估MAC协议的评估,我们比较了三种MAC协议,重点是吞吐量、延迟、数据包传输比和能耗。采用ns3仿真工具进行仿真。仿真结果表明,ua - cw MAC协议在吞吐量、时延、包投递率和能耗等方面都优于两种协议。但是,UAN-RC-MAC的剩余能量高于其他类型。
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引用次数: 1
Non-uniform Illumination Document Image Binarization Using K-Means Clustering Algorithm 基于k均值聚类算法的非均匀光照文档图像二值化
Pub Date : 2021-11-25 DOI: 10.1109/icicn52636.2021.9674011
Xingxin Yang, Y. Wan
Good binarization result is of great help to the afterwords document image analysis and optical character recognition(OCR). However, non-uniform illumination document image binarization is a very challenging task due to high variation between the document background and foreground. This paper describes a new K-Means clustering based algorithm for non-uniform illumination document image binarization to solve this problem. In the proposed technique, we firstly obtain the combined edge map by take intersection of Canny’s edge map and local image contrast. Then divide the document image into small blocks, each block is classified as text and non-text block using our proposed algorithm. Finally, binarize the text block using K-Means clustering centroids. The proposed technique has been evaluated over nine Non-uniform illumination document images extracted from DIBCO datasets and one scene light reflection document image. Experimental results show that our proposed method achieves competitive performance among other six state-of-the-art binarization algorithm.
良好的二值化结果对后记文档图像分析和光学字符识别(OCR)有很大的帮助。然而,由于文档背景和前景之间的差异很大,非均匀照明文档图像的二值化是一项非常具有挑战性的任务。针对这一问题,提出了一种新的基于k均值聚类的非均匀照度文档图像二值化算法。在该技术中,我们首先将Canny边缘图与局部图像对比度相交得到组合边缘图。然后将文档图像划分为小块,并将每个小块分为文本块和非文本块。最后,使用K-Means聚类质心对文本块进行二值化。在DIBCO数据集中提取的9幅非均匀照明文档图像和1幅场景光反射文档图像上对该技术进行了评估。实验结果表明,该方法与其他六种最先进的二值化算法相比具有一定的竞争力。
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引用次数: 0
期刊
2021 IEEE 9th International Conference on Information, Communication and Networks (ICICN)
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