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SSrN 2024年

作者： Wu, Wenhao Ji, Xinsheng Yang, Jie You, Wei Zhou, deqiang Li, ran Xue, Buqing National Digital Switching System Engineering & Technological R&D Center PLA Information Engineering University Henan Zhengzhou450001 China School of Cyber Science and Technology Xidian University Shanxi Xi’an710126 China

As a next-generation mobile communication technology, 5G's network functions—cloudification, virtualization, and other characteristics enable the network to overcome single-point resource constraints and be deployed flexibly. However, it also exposes more attack surface interfaces to malicious users, who can launch high-traffic ddoS attacks that can seriously affect the resilience of network services. The complexity and dynamics of the 5G system itself make it difficult to capture and measure its resilience. In order to address the aforementioned issues, in this paper, we use Petri Nets to model 5G network systems deployed based on virtualization and implement different resilient resource scheduling strategies to mitigate and assess the impact of attack threats on the overall system resilience. By comparing the resilience gains of different resource scheduling strategies in the face of anomalous ddoS attacks, it is effectively demonstrated that the adoption of appropriate resilient resource scheduling strategies is instructive in reducing the traffic loss caused by ddoS attacks. © 2024, The Authors. All rights reserved.

关键词： 5G mobile communication systems

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User Profile Construction Based on Multi-Channel Fusion

User Profile Construction Based on Multi-Channel Fusion

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Intelligent Computing and Human-Computer Interaction (ICHCI), International Conference on

作者： Chao Miao Shaomei Li Fangjie Wan School of Cyber Science and Engineering Zhengzhou University Zhengzhou China National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

Aiming at the shortcomings of existing user profile construction algorithms that do not fully utilize contextual structural information and multidimensional feature information., a user profile construction model based on the pre-training model NEZHA, deep Pyramidal Convolutional Neural Networks (dPCNN), Gated recurrent Unit (GrU), and attention mechanism is proposed, NCdGA. The method uses multiple channels to process the text, capturing different dimensions of information and constructing features to reduce the prediction bias that occurs when a single model captures a single feature. The experimental results show that the NCdGA model has better accuracy and effectiveness compared with other modeling methods.

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An Incremental dynamic Community detection Algorithm Based on Node Participation 6

An Incremental Dynamic Community Detection Algorithm Based o...

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6th IEEE International Conference on Cloud Computing and Big data Analytics, ICCCBdA 2021

作者： Li, Hui Chen, Fucai Zhang, Jianpeng National Digital Switching System Engineering Technological R D Center Information Engineering University Zhengzhou China

ISBN: (纸本)9780738105338

Many networks in the real world are dynamically changing over time, and the community structure also changes accordingly. The community detection in the dynamic and constantly evolving network has received great attention from researchers. In order to uncover the community structure in the dynamic network, this paper proposes an incremental dynamic community detection algorithm based on node participation (NPICd). It defines the node participation to the community and the community fitness. In response to the changes of nodes and edges in the network, different update strategies are proposed to discover the community at different moments in an incremental manner. The experimental results on the real network show that compared with several widely used methods, our algorithm can quickly and accurately mine the community structure in the dynamic network. © 2021 IEEE.

关键词： Population dynamics

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discussion on a new paradigm of endogenous security towards 6G networks

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Frontiers of Information technology & Electronic engineering 2022年第10期23卷 1421-1450页

作者： Xinsheng JI Jiangxing WU Liang JIN Kaizhi HUANG Yajun CHEN Xiaoli SUN Wei YOU Shumin HUO Jing YANG Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China National Digital Switching System Engineering&Technological R&D Center Zhengzhou 450002China Purple Mountain Laboratories:Networking Communications and SecurityNanjing 211111China

The sixth-generation mobile communication(6G)networks will face more complex endogenous security problems,and it is urgent to propose new universal security theories and establish new practice norms to deal with theªunknown unknownºsecurity threats in *** paper first expounds the new paradigm of cyberspace endogenous security and introduces the vision of 6G cyberspace ***,it analyzes the security problems faced by the 6G core network,wireless access network,and emerging associated technologies in detail,as well as the corresponding security technology development status and the integrated development of endogenous security and traditional ***,this paper describes the relevant security theories and technical concepts under the guidance of the new paradigm of endogenous security.

关键词： 6G security New paradigm of endogenous security Core network Wireless access network

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Problems and solutions regarding generalized functional safety in cyberspace

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Security and Safety 2022年第1期1卷 90-102页

作者： JiangXing Wu National Digital Switching System Engineering&Technological R&D Center Zhengzhou 450002China Purple Mountain Laboratories Nanjing 211111China

The common endogenous security problems in cyberspace and related attack threats have posed subversive challenges to conventional theories and methods of functional *** the current design of the cyber physical system(CPS),functional safety and cyber security are increasingly intertwined and inseparable,which evolve into the generalized functional safety(S&S)*** conventional reliability and cybersecurity technologies are unable to provide security assurance with quanti able design and veri cation metrics in response to the cyberattacks in hardware and software with common endogenous security problems,and the functional safety of CPS facilities or device has become a frightening *** dynamic heterogeneity redundancy(dHr)architecture and coding channel theory(CCT)proposed by the cyberspace endogenous security paradigm could handle random failures and uncertain network attacks in an integrated manner,and its generalized robust control mechanism can solve the universal problem of quantitative design for functional safety under probability or improbability *** a generalized functional safety enabling structure,dHr opens up a new direction to solve the common endogenous security problems in the cross-disciplinary elds of cyberspace.

关键词： Common endogenous security problem Generalized functional safety(S&S) dynamic heterogeneity redundancy(dHr)architecture General robust control mechanism Coding channel theory Common cross-disciplinary eld problems

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Fused Tapered Fan-in/Fan-out device of 6-Mode 7-Core Fiber Based On OM3 Multimode Fiber

Fused Tapered Fan-in/Fan-out Device of 6-Mode 7-Core Fiber B...

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2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Yang, Chen du, Haoze Shao, Yuanhui Zhang, Fengming Liu, Zhuyixiao Zhang, Senyu Zhao, Zhiyong Tang, Ming R&d Center & Optics Valley Laboratory State Key Laboratory of Optical Fiber and Cable Manufacture Technology Wuhan China National Engineering Laboratory for Next Generation Internet Access System Wuhan China

ISBN: (纸本)9798350312614

Fused tapered Fan-in/Fan-out devices of few-mode multi-core fiber have received attentions in recent ten years. Most devices are based on special designed fibers which are called 'bridge fiber'. A low insertion loss and low-cost Fan-in/Fan-out device using OM3 fiber as the bridge fiber is fabricated and demonstrated in this paper. The insertion losses of LPOl, LPlla, LPllb, and LP2la are less than 1dB, and the insertion loss of LP2lb and LP02 are 2.02dB and 2.2dB. © 2023 IEEE.

关键词： Fan-in/Fan-out device few-mode multi-core fiber multimode fiber Spatial division multiplexing

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A Scheme for Authentication and Traceability of 5G Mobile Terminal Based on IPv6 and Blockchain

A Scheme for Authentication and Traceability of 5G Mobile Te...

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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Xinsheng Ji Ying Zhao Xingxing Liao Jie Yang Chunxiao Wang Department of Computer Science and Technology Tsinghua University Beijing China National Digital Switching System Engineering & Technological R&D Center Zhengzhou China Purple Mountain Laboratories Nanjing China School of Cyber Science and Engineering Southeast University Nanjing China

ISBN: (数字)9798350390643

ISBN: (纸本)9798350390650

To satisfy the service-side requirements for network layer authentication and traceability of users, this paper proposes a method for mobile terminal authentication and identity tracing based on IPv6 and blockchain. Our method introduces a new verification function (VEF) to verify the interface identification between the terminal and the 5G core network (5GC), thereby effectively enhancing the security of terminal access. Furthermore, considering the privacy protection of user identity information to prevent attackers from deducing encrypted content, it is necessary to periodically update encryption keys. Focusing on the practical deployment of VEFs on a network-wide scale and server-proximal for authentication and traceability, a time-varying key sharing scheme based on blockchain is proposed. The experimental section analyzes the communication performance and security of the proposed scheme, showing that our scheme does not significantly degrade the original network performance while providing substantial security gains.

关键词： Wireless communication Privacy 5G mobile communication Authentication Signal processing User experience Blockchains Synchronization Noise measurement Protection

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research on a Synchronization Algorithm of Look-Up Table in Open reconfigurable router

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Chinese Journal of Electronics 2023年第3期19卷 419-422页

作者： Xiaochun Wu Chunming Wu Fenggen Jia College of Computer Science and Technology Zhejiang University Hangzhou China Institute of Network and Communication Engineering Zhejiang Gongshang University Hangzhou China R & D Center National Digital Switching System Engineering and Technology Zhengzhou China

reconfigurable router with fast look-up table synchronization mechanism is necessary for Next generation network (NGN), which facilitates open and fast deployment of new services. Based on an open architecture, standard and highly credible interfaces among modules, a synchronization mechanism of the routing table and FIB (Forwarding information base) is put forward in this paper which is applicable to other look-up tables. This synchronization mechanism overcomes the inconsistency of look-up tables brought by the dynamic loading or unloading of forwarding planes. Anomalies can be rapidly discovered and eliminated by adding the appropriate synchronization messages to multi-queue, calculating the 16-bit Checksum in look-up table and resending parts of look-up table entries to the forwarding planes. A reconfigurable router prototype is built to simulate the scene. The results show that the proposed algorithm can realize high consistency and quick recovery in look-up tables, which improve stability and reliability of the reconfigurable router.

关键词： Loading Prototypes routing reliability engineering Iron Stability analysis Table lookup

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research on Network Application of Intelligent Campus Based on SdN technology

Research on Network Application of Intelligent Campus Based ...

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2023 IEEE International Conference on Image Processing and Computer Applications, ICIPCA 2023

作者： Mei, Yunyi Shao, Qi Gao, Qingzhong Zhao, Tong Zhang, Yanlong Jing, Lingzhi Yu, Yang Cnpc Engineering Technology R&d Company Limited Beijing China National Engineering Research Center of Oil & Gas Drilling and Completion Technology Beijing China Cnpc Great Wall Drilling Company Beijing China Kunlun Digital Technology Co. Ltd. Beijing China

ISBN: (纸本)9798350314670

There are some problems in traditional network architecture, such as traffic can not be real-time scheduling, business information can not be visualized, operation and maintenance is complex, and fault location efficiency is low. In order to meet the needs of 'digital Petroleum' network infrastructure construction, a company introduced SdN technology into the campus office network, and carried out network optimization management and innovation practice, this paper puts forward a network transformation scheme based on SdN 'The network follows the people', through deploying SdN control server and adjusting the network equipment configuration, the office network can be expanded flexibly and maintained efficiently, to meet the needs of different types of application traffic classification management and intelligent precision scheduling, effectively improve the level of intelligent network management. © 2023 IEEE.

关键词： Network architecture

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design and implementation of a novel enterprise network defense system by maneuvering multi-dimensional network properties

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Frontiers of Information technology & Electronic engineering 2019年第2期20卷 238-252页

作者： Yang CHEN Hong-chao HU Guo-zhen CHENG National Digital Switching System Engineering & Technological R&D Center

Although the perimeter security model works well enough when all internal hosts are credible, it is becoming increasingly difficult to enforce as companies adopt mobile and cloud technologies, i.e., the rise of bring your own device(BYOd). It is observed that advanced targeted cyber-attacks usually follow a cyber kill chain;for instance, advanced targeted attacks often rely on network scanning techniques to gather information about potential targets. In response to this attack method, we propose a novel approach, i.e., an "isolating and dynamic"cyber defense, which cuts these potential chains to reduce the cumulative availability of the gathered ***, we build a zero-trust network environment through network isolation, and then multiple network properties are maneuvered so that the host characteristics and locations needed to identify vulnerabilities cannot be ***, we propose a software-defined proactive cyber defense solution(SPd) for enterprise networks and design a general framework to strategically maneuver the IP address, network port, domain name, and path, while limiting the performance impact on the benign network user. Third, we implement our SPd proof-of-concept system over a software-defined network controller(Opendaylight). Finally, we build an experimental platform to verify the system's ability to prevent scanning, eavesdropping, and denial-of-service attacks. The results suggest that our system can significantly reduce the availability of network reconnaissance scan information, block network eavesdropping, and sharply increase the cost of cyber-attacks.

关键词： Intranet defense Software-defined network Multi-dimensional maneuvering

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