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Multi-layer network embedding on scc-based network with motif

Digital communications and networks 2024年第3期10卷 546-556页

作者： Lu Sun Xiaona Li Mingyue Zhang Liangtian Wan Yun Lin Xianpeng Wang Gang Xu Department of Communication Engineering Institute of Information Science TechnologyDalian Maritime UniversityDalian116026China Key Laboratory of Big Data Intelligent Computing Chongqing University of Posts and TelecommunicationsChongqing400065China Key Laboratory for Ubiquitous Network and Service Software of Liaoning Province DUT School of Software Technology&DUT-RU International School of Information Science and EngineeringDalian University of TechnologyDalian 116620China College of Information and Communication Engineering Harbin Engineering UniversityHarbin 150001China School of Information and Communication Engineering Hainan UniversityHaikou 570228China State Key Laboratory of Millimeter Waves School of Information Science and EngineeringSoutheast UniversityNanjing 210096China

Interconnection of all things challenges the traditional communication methods,and Semantic communication and Computing(SCC)will become new *** is a challenging task to accurately detect,extract,and represent semantic information in the research of SCC-based *** previous research,researchers usually use convolution to extract the feature information of a graph and perform the corresponding task of node ***,the content of semantic information is quite *** graph convolutional neural networks provide an effective solution for node classification tasks,due to their limitations in representing multiple relational patterns and not recognizing and analyzing higher-order local structures,the extracted feature information is subject to varying degrees of ***,this paper extends from a single-layer topology network to a multi-layer heterogeneous topology *** Bidirectional Encoder Representations from Transformers(BERT)training word vector is introduced to extract the semantic features in the network,and the existing graph neural network is improved by combining the higher-order local feature module of the network model representation network.A multi-layer network embedding algorithm on SCC-based networks with motifs is proposed to complete the task of end-to-end node *** verify the effectiveness of the algorithm on a real multi-layer heterogeneous network.

关键词： Semantic communication and computing Multi-layer network Graph neural network Motif

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Multi-level virtual desktop security enhancement technology based on Docker and X server 18

Multi-level virtual desktop security enhancement technology ...

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2018 the International Conference on Geoinformatics and Data Analysis, ICGDA 2018 and 2018 the International Conference on Software and Services Engineering, ICSSE 2018

作者： Luan, Guangqiang Bai, Yuebin Yu, Chao Zhang, Xudong Wang, Rui Huo, Longshe School of Computer Science and Engineering Beihang University China Science and Technology on Communication Networks Laboratory Shijiazhuang China China Unicom Network Technology Research Institute Beijing China

ISBN: (纸本)9781450364454

With the development of virtualization technology, desktop virtualization is becoming more and more mature. Desktop virtualization can effectively isolate the use of users and the management of the system, but in the access to virtual desktops, its security has become a key factor which can’t be ignored. In this paper, we propose a set of technologies that enhance the security of virtual desktops and can effectively secure virtual desktops from multiple levels. We improve the spice protocol and implement the multi-level access mechanism of users and virtual desktops. The Docker technology is used to implement the isolation of the communication, storage and network between the virtual desktop processes. Based on the X server mechanism, we isolate the virtual desktop client from GUI Level. The experimental results have shown the effects from various aspects, as well as differences in performance with the original client. © 2018 Association for Computing Machinery.

关键词： Virtual reality

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Hierarchical Clustering Routing Algorithm for Wireless Sensor networks 3

Hierarchical Clustering Routing Algorithm for Wireless Senso...

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3rd IEEE International Conference on Information technology, Big Data and Artificial Intelligence, ICIBA 2023

作者： Chen, Ni Wen, Rong Ma, Shuying Wang, Ping Chengdu Technological University School of Network and Communication Engineering Chengdu China University of Electronic Science and Technology of China National Key Laboratory of Science and Technology on Communications Chengdu China

ISBN: (纸本)9781665490788

Aiming at the problem that the uneven node distribution and the limited energy of nodes in wireless sensor networks, a clustering routing algorithm for wireless sensor networks based on hierarchical clustering is proposed. No need to calculate the optimal number of cluster heads in advance. Randomly distributed nodes in the network were divided into several original clusters according to the hierarchical clustering algorithm. During network working, the clusters were selected according to node residual energy and position in the original clusters. The cluster head got the distance of the node farthest from it within the original cluster and used that distance as the communication range for sending broadcast messages. Ordinary nodes chose to communicate with the cluster head of the same original cluster or with the sink node depending on the distance. The simulation results show that the algorithm can reasonably complete the clustering and better extend the network life cycle compared with LEACH and KM-LEACH. © 2023 IEEE.

关键词： Routing algorithms

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A novel scheme of control wavelength channel in optical burst switching system

A novel scheme of control wavelength channel in optical burs...

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Information Optics and Photonics technology

作者： Qiu, Qi Zhu, Can Key Laboratory of Broadband Optical Fiber Transmission and Communication Network Ministry of Education University of Electronic and Science Technology of China Chengdu 610054

The classical scheme of OBS (Optical Burst Switching) optical wavelength channels uses ITU-T's DWDM (Dense Wavelength Divided Multiplex) standard wavelength at 1550nm band. BHPs (Burst Header Packet) over control optical wavelength channel and BPs (Burst Packet) over burst packets optical wavelength channels all choose this band. A novel scheme of OBS control optical wavelength channel selects 1310nm wavelength as the control optical wavelength channel, and the other channels are the same with the classical scheme. The key design is to choose broadband 1310/1550 wavelength divided multiplexer and demultiplexer, the band range is from 1270 to 1350nm at 1310nm band, from 1520 to 1610nm at 1550nm band, also its isolation is more than 30dB. The novel scheme has advantages of saving resource of DWDM wavelength channels and reducing cost of OBS system based on assuring the capability and quality of OBS system, comparing with the classical scheme.

关键词： communication channels (information theory)

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Design and Implementation of Cyber Space Threat Detection System Based on User Behavioral Logs 3

Design and Implementation of Cyber Space Threat Detection Sy...

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3rd International Conference on Electronic Information Engineering and Computer communication, EIECC 2023

作者： Wang, Wenhao Li, Hao Nie, Peng College of Cyber Science Nankai University Tianjin Key Laboratory of Network and Data Security Technology Tianjin China Science and Technology on Communication Networks Laboratory Shijiazhuang China College of Cyber Science Nankai University Tianjin China

ISBN: (纸本)9798350359961

In contemporary society, the role of networks in daily work and business activities is increasingly prominent. The enterprise intranet, serving as a crucial bridge for maintaining work stability, asset security, and business continuity, has garnered significant attention from both academia and industry in the field of intranet security detection. This study is based on the Log2Vec algorithm and involves the design and implementation of a Cyber Space Threat Detection System. The system, facilitated by the collaborative efforts of three modules-log ingestion, graph encoding, and security detection-effectively showcases user behavior, encodes logs into a heterogeneous graph, transforms the graph into vectors, and conducts cluster analysis to detect abnormal user behavior. Through in-depth research and systematic design, this study aims to provide enterprises with a more advanced and comprehensive intranet security detection solution to cope with evolving cybersecurity threats. © 2023 IEEE.

关键词： Cybersecurity Heterogeneous Graph Log2Vec

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Fire Detection Method Based on Improved Fruit Fly Optimization-Based SVM

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Computers, Materials & Continua 2020年第1期62卷 199-216页

作者： Fangming Bi Xuanyi Fu Wei Chen Weidong Fang Xuzhi Miao Biruk Assefa College of Computer Science and Technology China University of Mining and TechnologyXuzhou221116China College of Computer Science and Technology Mine Digitization Engineering Research Center of the Ministry of EducationChina University of Mining and TechnologyXuzhou221116China College of Computer Science and Technology Xi’an University of Science and TechnologyXi’an710054China Key Laboratory of Wireless Sensor Network&Communication Shanghai Institute of Micro-System and Information TechnologyChinese Academy of SciencesShanghai201899China Infromation Communication Technology Department Wollo UniversityDessie EthiopiaP.o Box 1145Ethiopia

Aiming at the defects of the traditional fire detection methods,which are caused by false positives and false negatives in large space buildings,a fire identification detection method based on video images is *** algorithm first uses the hybrid Gaussian background modeling method and the RGB color model to perform fire prejudgment on the video image,which can eliminate most non-fire ***,the traditional regional growth algorithm is improved and the fire image segmentation effect is effectively ***,based on the segmented image,the dynamic and static features of the fire flame are further analyzed and extracted in the area of the suspected fire ***,the dynamic features of the extracted fire flame images were fused and classified by improved fruit fly optimization support vector machine,and the recognition results were *** video-based fire detection method proposed in this paper greatly improves the accuracy of fire detection and is suitable for fire detection and identification in large space scenarios.

关键词： Fire detection image segmentation feature extraction fruit fly optimization support vector machine

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A Deep Exploration of BitLocker Encryption and Security Analysis 20

A Deep Exploration of BitLocker Encryption and Security Anal...

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20th IEEE International Conference on communication technology, ICCT 2020

作者： Tan, Cheng Zhang, Lijun Bao, Liang Science and Technology on Communication Security Laboratory Chengdu China Security Ministry of Public Security Key Lab of Information Network Shanghai China

ISBN: (纸本)9781728181417

Due to the popularity of Windows system, BitLocker is widely used as a built-in disk encryption tool. As a commercial application, the design of BitLocker has to consider a capability of disaster recovery, which helps a user to recover data stored on encrypted disk when a regular access is not available. In this case, it will inevitably lead to some security risks when using BitLocker. We have a deep exploration of BitLocker encryption mechanism in this paper. We present the decryption method of encrypted VMK in case of system partition encryption and non-system partition encryption, respectively. VMK is the core key in BitLocker, with which the encrypted partition or the entire disk can be further decrypted. As for security analysis on BitLocker, we firstly make a difficulty analysis of brute force cracking on BitLocker keys, and then we analyze a possible threat caused by key theft. Based on this, we propose a few countermeasures about BitLocker usage. Additionally, we give some suggestions about security enhancement of BitLocker encryption. © 2020 IEEE.

关键词： Cryptography

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A newrail-to-rail opamp with bulk-driven input stage and interleaved class-AB ouput stage 12

A newrail-to-rail opamp with bulk-driven input stage and int...

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2014 12th IEEE International Conference on Solid-State and Integrated Circuit technology, ICSICT 2014

作者： Ma, Jianping Chen, Yuan Tong, Tian Key Laboratory of Wireless Sensor Network and Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Science Shanghai200050 China

ISBN: (纸本)9781479932962

This paper introduces a fully differential rail-to-rail input/output CMOS operational amplifier consisting of a bulk-driven input stage and an interleaved class-AB output stage. The input stage features a partial positive feedback loop to improve the gain and gain-bandwidth-product. Post-layout simulated results have shown that the proposed opamp, implemented in standard 65nm CMOS technology and with a 1.2V supply, obtains an open-loop DC gain higher than 72dB and gain-bandwidth-product above 15MHz when a 6pF load is connected to the differential output. © 2014 IEEE.

关键词： Operational amplifiers

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A Non-Terrestrial network Congestion Control Scheme Based on the SAC Method

A Non-Terrestrial Network Congestion Control Scheme Based on...

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2024 International Symposium on networks, Computers and communications, ISNCC 2024

作者： Xie, Wenxuan Zhu, Lidong Song, Yanjun Wang, Huilin University of Electronic Science and Technology of China National Key Laboratory of Wireless Communication Chengdu China The 54th Research Institute of Cetc Scientific and Technical on Communication Network Laboratory Shijiazhuang China

ISBN: (纸本)9798350364910

Satellite Internet technology is currently booming. Due to the high cost of satellites and the limited number of orbits, a satellite must cover a large area and serve more users than before. Given that the random access process is the initial step in establishing communication between satellites and terrestrial users, congestion control has emerged as a focal point of research. In this paper, we address the random access congestion control problem in satellite Internet scenarios and introduce the soft actor-critic (SAC) method to dynamically set the access class barring (ACB) factors. The throughput of random access is optimized to allow a single satellite to support a greater number of users without experiencing congestion. The SAC-ACB method is verified by simulation to converge faster and perform better than the proximal policy optimization (PPO) method. © 2024 IEEE.

关键词： Congestion control (communication)

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Comprehensive Analysis of Secure Data Aggregation Scheme for Industrial Wireless Sensor network

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Computers, Materials & Continua 2019年第8期61卷 583-599页

作者： Weidong Fang Wuxiong Zhang QianQian Zhao Xiaohong Ji Wei Chen Biruk Assefa Key Laboratory of Wireless Sensor Network&Communication Shanghai Institute of Micro-system and Information TechnologyChinese Academy of SciencesShanghai201899China Shanghai Research Center for Wireless Communication Shanghai201210China College of Physics and Electronic Information Engineering Qinghai University for NationalitiesXining810007China School of Computer Science and Technology China University of Mining and TechnologyXuzhou221116China Infromation Communication Technology Department Wollo UniversityDessie EthiopiaEthiopia

As an Industrial Wireless Sensor network(IWSN)is usually deployed in a harsh or unattended environment,the privacy security of data aggregation is facing more and more ***,the data aggregation protocols mainly focus on improving the efficiency of data transmitting and aggregating,alternately,the aim at enhancing the security of *** performances of the secure data aggregation protocols are the trade-off of several metrics,which involves the transmission/fusion,the energy efficiency and the security in Wireless Sensor network(WSN).Unfortunately,there is no paper in systematic analysis about the performance of the secure data aggregation protocols whether in IWSN or in *** consideration of IWSN,we firstly review the security requirements and techniques in WSN data aggregation in this ***,we give a holistic overview of the classical secure data aggregation protocols,which are divided into three categories:hop-by-hop encrypted data aggregation,end-to-end encrypted data aggregation and unencrypted secure data *** this way,combining with the characteristics of industrial applications,we analyze the pros and cons of the existing security schemes in each category qualitatively,and realize that the security and the energy efficiency are suitable for ***,we make the conclusion about the techniques and approach in these categories,and highlight the future research directions of privacy preserving data aggregation in IWSN.

关键词： Industrial wireless sensor network wireless sensor network cyber security secure data aggregation protocol

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