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An SDN-Based Fabric For Flexible Data-Center Networks

An SDN-Based Fabric For Flexible Data-Center Networks

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IEEE international conference on Cyber Security and Cloud computing

作者： Longbin Chen Meikang Qiu Jian Xiong School of Computer Science Pace University New York USA Institute of Image Communication and Network Engineering (IICNE) Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9781467393010

Data-centers play a fundamental role in cloud computing. As the market of cloud computing continues to scale, it becomes increasingly difficult to utilize resources in large data-center networks. There is a growing interest to seek for efficient data-center architectures among academia and industry. Software-defined networking (SDN) is a promising technology to develop scalable network architectures for massive data processing. SDN decouples control planes from physical switches and centralizes network management. However, most of the previous works merging SDN with data-center networks use tree or fat-tree topologies. These topologies have fixed architectures and are difficult to make full use of the features supported by SDN. In this paper, we proposed a fabric topology to provide a flexible data-center network. With SDN controllers, our work has the potential to address critical issues such as bandwidth utilization and network capacity in datacenter networks.

关键词： Software-defined networking data-center networks fabric topology routing bandwidth utilization

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Aquaculture Access control Model in Intelligent Monitoring and Management System Based on Group/Role 1

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9th IFIP WG 5.14 international conference on Computer and computing Technologies in Agriculture (CCTA)

作者： Zhang, Qiyu Chen, Yingyi Zhen, Zhumi Xu, Jing Zhu, Ling Gao, Liangliang Liu, Yanzhong China Agr Univ Coll Informat & Elect Engn Beijing 100083 Peoples R China China Agr Univ Yantai Acad Yantai 264670 Peoples R China Shandong Acad Agr Sci Inst Informat Agr Jinan 250100 Peoples R China Shandong Inst Business & Technol Yantai 264605 Peoples R China Minist Agr Key Lab Agr Informat Acquisit Technol Beijing 100083 Peoples R China Shandong Agr Univ Coll Informat Sci & Engn Tai An 271018 Shandong Peoples R China

ISBN: (数字)9783319483573

ISBN: (纸本)9783319483573;9783319483566

Aquaculture intelligent monitoring and management system (AIMAMS) is a web information system covering businesses, home users, and management of aquaculture information, which have many users. The information security and safety equipment of different users is an important issue that we have to consider. Role-based access control introduces the roles concept into user and access rights, and its basic feature are that divide roles depending on the security policy, assign operating license for each role, and assign roles to each user. The user can access the specified object based on their respective roles. In order to achieve different user needs for security, aquaculture access control model based on group/role is developed which is based on analysis of the role-based access control model. Aquaculture intelligent monitoring and management system consists of system administrators, business users, family farming users and technicians, each category contains a number of other users who have different permissions. For such a complex distribution of competences, the user groups are introduced here on the basis of idea of role-based access control model. Users are divided into four groups which correspond to four categories of users, each group is given the largest collection of operational authority, and the users of each group are assigned different roles, which have all or part of privileges of the current group. Technicians can access business and family farming user's information, but cannot view some sensitive data, such as price, therefore, technicians group is controlled by field-level permissions of data tables, the sensitive fields of business and family farming user data tables is shielded. This model can effectively reduce the overhead of rights management, and can improve system's scalability. Along with the needs of business development, the system can easily add new user groups and assign permissions and roles for them. This aquaculture access model is univ

关键词： Group Role Access control Aquaculture Permission

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Inter-networking security

Inter-networking security

引用

international conference on communication Systems

作者： G.W. Wang Inf. Technol. Inst. Nat. Comput. Board Singapore

Inter-networking security in a multi-vendor heterogeneous network environment is a critical problem for IT professionals. This paper analyzes the security threats in a multi-vendor network environment and proposes a network security architecture for building a secure distributed network. It also discusses various information security packages including crypto-systems, network authentication, and security control software. The paper attempts to provide readers a systematic way for securing inter-network environment.< >

关键词： Information security Computer security Cryptography Authentication Protection National security Computer crime Distributed computing communication system security Data security

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Density Based Traffic Signal Light control with Machine to Machine communication System

Density Based Traffic Signal Light Control with Machine to M...

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advances in computing,communication, Electrical, and Smart Systems (iCACCESS), international conference on

作者： Nazim Uddin Sakib Md Mostafa Amir Faisal Muhammad Sadman Sakib Md. Sajjad-Ul Islam Mohammad Jawad Chowdhury Alif Ahmed Dept. of Electronic and Telecommunication Engineering International Islamic University Chittagong Chattogram Bangladesh Dept. of Electrical and Electronic Engineering International Islamic University Chittagong Chattogram Bangladesh

Automation has significantly simplified our daily lives, but the escalating number of vehicles on the roads, particularly in Bangladesh, has led to persistent traffic congestion and increased human effort. The existing manual traffic light system proves inadequate for addressing this issue promptly. To address this, we propose an experimental solution, an automated traffic signal system operating 24/7 with Machine-to-Machine (M2M) communication. This system aims to minimize human effort, save time, and effectively alleviate traffic congestion. Our approach involves a vehicle density measurement device utilizing a Light-Dependent Resistor (LDR) and laser technology to gauge the density of passing vehicles. This device identifies the maximum number of cars within a predetermined time frame. If the LDR detects a high volume of traffic, signaling excessive congestion, this information is relayed to the master unit (ESP32). Conversely, if the LDR registers a normal flow with fewer vehicles, this data is also transmitted to the master unit. The master unit analyzes the data to determine the traffic conditions. In typical situations, when the LDR and laser detect a vehicle, the corresponding green LED is illuminated. This dynamic adjustment of LED status based on vehicle density helps mitigate undesirable traffic congestion, ultimately saving valuable time for the public. Notably, our solution operates without the need for internet connectivity for M2M communication.

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Evaluating the use of sub-gigahertz wireless technologies to improve message delivery in opportunistic networks

Evaluating the use of sub-gigahertz wireless technologies to...

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IEEE international conference on networking, Sensing and control

作者： Jorge Herrera-Tapia Enrique Hernández-Orallo Andrés Tomás Carlos Tavares Calafate Juan-Carlos Cano Marco Zennaro Pietro Manzoni Departamento de Informática de Sistemas y Computadores Universitat Politècnica de València Valencia Spain Telecommunications/ICT4D Laboratory Abdus Salam International Centre for Theoretical Physics Trieste Italy

ISBN: (纸本)9781509044306

The message delivery ratio of mobile opportunistic networks strongly depends on the transmission time, which is closely related either to the mobility of users and to the communication properties of the mobile devices. A larger radio transmission range allows longer contact durations, improving the message dissemination. Furthermore, user mobility is a crucial factor to be considered, especially when the mobile nodes are vehicles, because of their limited freedom of movement and the high relative speed. In this paper, we evaluate the use of a sub-gigahertz wireless technology, namely LoRa (Long Range), to establish links between the mobile users in an opportunistic network in order to augment the number of contacts and their duration. We evaluate the performance of LoRa, comparing it with WiFi, using the Epidemic protocol for message diffusion with realistic vehicular traces. Through simulations, we compare the message delivery probability and the network overhead. These experiments were carried out using the ONE simulator with minor modifications to model the typical behaviour of mobile users. The results show that, in opportunistic networks, increasing the range even while reducing the available bandwidth increases the message delivery ratio.

关键词： Wireless fidelity Mobile computing Protocols Ad hoc networks Bandwidth Mobile communication Data communication

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Dynamic Assignment of Software-Defined controllers in Vehicular Networks: An Evolutionary Game Approach

Dynamic Assignment of Software-Defined Controllers in Vehicu...

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international Wireless communications and Mobile computing conference, IWCMC

作者： Shufang Ji Dong Guo Ran Gao Tianle Mai Key Laboratory of Optical Communication and Lightwave Technologies Beijing University of Posts and Telecommunications Beijing P.R. China School of Information and Electronics Beijing Institute of Technology Beijing P.R. China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing P.R. China

As an emerging technology, Software Defined networking (SDN) shows great potential in the management of complex networks. Its centralized control and programmability provide flexible network traffic control, making networks more intelligent. Meanwhile, Unmanned Aerial Vehicles (UAVs) have gained popularity in various industries for their flexibility, maneuverability, and ability to access hard-to-reach areas. In this paper, we present a new network architecture and dynamic controller assignment algorithm for vehicular networks. The decoupling of the control plane and the data plane is realized through SDN, and the controller is deployed on the UAV to dynamically control the vehicle. As for the dynamic controller assignment problem, we establish a model by the evolutionary game algorithm, and dynamically assign controllers based on vehicle positions and traffic loads on the controllers. Extensive simulation results confirm the effectiveness of the method.

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Enhanced protection of hidden primary users through filtering based on suspect channels classification

Enhanced protection of hidden primary users through filterin...

引用

IEEE international conference on Wireless and Mobile computing, networking And communications (WiMob)

作者： José Marinho Edmundo Monteiro ISEC-Polytechnic Institute of Coimbra CISUC University of Coimbra Coimbra Portugal DEI CISUC University of Coimbra Coimbra Portugal

Cognitive radio (CR) users (i.e., secondary users) are wireless nodes which are allowed to select and access licensed frequency bands, provided that they do not cause any harmful interference to the respective incumbent users (i.e., primary users). One of the possible approaches consists in having the secondary users locating and accessing vacant frequencies dynamically. However, in scenarios with hidden primary users (i.e., a secondary user cannot sense a primary user on its respective channel, but the two coverage areas overlap each other), it is unfeasible to address the protection of primary users with solutions which are exclusively based on local and non-cooperative sensing schemes. In this work, we propose a cooperative approach which enables an effective protection of primary users in fully distributed CR scenarios, even when the hidden node problem is a concern. Our proposal is based on a key concept we designate as “filtering based on suspect channels” and takes full advantage of any underlying learning scheme based on observation and past experience. It was also successfully integrated with an existing CR medium access control (MAC) protocol. Simulation results show the proposal is effectively capable of delivering high levels of protection concerning the primary users, while preserving the secondary users' communication performance.

关键词： Sensors Receivers Filtering Proposals Media Access Protocol Software radio Traffic control

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Introducing Trust Establishment Protocol in Contract Net Protocol

Introducing Trust Establishment Protocol in Contract Net Pro...

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international conference on advances in Computer Engineering (ACE)

作者： Aarti Singh Dimple Juneja A.K. Sharma Maharishi Markandeshwar University Ambala Haryana India Y. M. C. A. University of Science and Technology Faridabad Haryana India

ISBN: (纸本)9781424471546;9780769540580

Contract Net Protocol (CNP) is a means to specify problem-solving communication required in a distributed multi-agent environment. Although, FIPA standardized CNP addresses most of the issues with respect to communication happening among agents in a Multi-Agent Environment (MAE), issues related to establishing trust-worthy communication amongst agents is still prevailing. This work introduces a new Trust Establishment Protocol (TEP) in CNP, thereby improving CNP. The proposed new version shall be referred to as CNTEP Architecture. Introduction of TEP in existing CNP would help in ensuring truthfulness of agents which is crucial for open, dynamic and heterogeneous multi-agent systems.

关键词： Protocols Contracts Proposals Intelligent agent Multiagent systems IEEE news Distributed computing Problem-solving Distributed control Subcontracting

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On the Isofunctionality of Network Access control Lists

On the Isofunctionality of Network Access Control Lists

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international conference on Availability, Reliability and Security, ARES

作者： Malek Belhaouane Joaquin Garcia-Alfaro Hervé Debar Institut Mines-Telecom CNRS Samovar UMR 5157 Evry France

In a networking context, Access control Lists (ACLs) refer to security rules associated to network equipment, such as routers, switches and firewalls. Methods and tools to automate the management of ACLs distributed among several equipment shall verify if the corresponding ACLs are functionally equivalent. In this paper, we address such a verification process. We present a formal method to verify when two ACLs are iso functional and illustrate our proposal over a practical example.

关键词： Access control Ports (Computers) Proposals communication networks Firewalls (computing) Boolean functions

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Stochastic Fair Traffic Management for Efficient and Robust IP networking

Stochastic Fair Traffic Management for Efficient and Robust ...

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IEEE international conference on Performance, computing and communications (IPCCC)

作者： Jae Chung Mark Claypool Robert Kinicki Airvana Inc. Chelmsford MA USA Worcester Polytechnic Institute Worcester MA USA

As use of non-TCP applications such as streaming media and network games increases, the potential for unfair, misbehaving flows and the threat of congestion collapse also increases. This paper introduces a statistical traffic filtering technique, stochastic fairness guardian (SFG), that effectively regulates misbehaving flows with minimal traffic state information. SFG can be used in conjunction with an active queue management (AQM) mechanism to improve both network protection and efficiency. Simulations are used to evaluated SFG and the integration of SFG with a proportional-integral (PI) controller in comparison with other similar statistical flow management mechanisms including RED-PD, SFB and CHOKe. The SFG-PI combination outperforms other mechanisms in terms of fairness, queuing delay, stability and TCP performance over a wide range of realistic traffic loads and conditions.

关键词： Stochastic processes Telecommunication traffic Robustness Traffic control Streaming media Information filtering Information filters communication system traffic control Protection Pi control

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