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International Symposium on Computational Intelligence and Design, ISCID

作者： Yu Zhang Xiangyu Bai College of Computer Inner Mongolia University Inner Mongolia Key Laboratory of Wireless Networking and Mobile Computing Hohhot China

ISBN: (数字)9781728146539

ISBN: (纸本)9781728146546

Vehicle Ad Hoc Network (VANET) is a kind of vehicular self-organizing network. The communication mode of VANET mainly includes V2V, V2I and I2V. VANET has the unique characteristics of changeable network topology, frequent exchange of messages between nodes and unstable channel resources. With the in-depth study of vehicular network, more and more security problems have emerged, and the safety of vehicular network is one of the important factors affecting the overall development of vehicular network. More and more scholars have studied and discussed this issue. This paper summarizes the research work on VANET security authentication in recent years. Firstly, an overview of the mathematical tools, cryptography basics, and cybersecurity knowledge used to build a secure authentication scheme; Then, several types of security authentication methods are introduced from the key technologies of authentication; Finally, it makes a comparative analysis of the existing work and summarizes the prospects.

关键词： Vehicular ad hoc networks Authentication Privacy Elliptic curve cryptography

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A Review of UAV Ferry Algorithms in Delay Tolerant Network

A Review of UAV Ferry Algorithms in Delay Tolerant Network

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International Symposium on Computational Intelligence and Design, ISCID

作者： Bo Yang Xiangyu Bai Inner Mongolia Key Laboratory of Wireless Networking and Mobile Computing College of Computer Science of Inner Mongolia University Hohhot China

ISBN: (数字)9781728146539

ISBN: (纸本)9781728146546

The Delay Tolerant Network (DTN) is suitable for post-disaster environments where infrastructure is scarce. Search and rescue operations require network deployment in areas not covered by infrastructure. In the post-disaster DTN environment, UAVs are introduced as ferry nodes for message-passing and it is a popular practice recently. This paper introduces the application of Delay Tolerant Network in post-disaster environments and introduces message-passing through ferry nodes in DTN. Next, this paper analyzes the UAV's ferry algorithms from the perspectives of UAV network architecture, node routing algorithm, node deployment, node trajectory optimization, node energy optimization and node storage allocation optimization in DTN. The application of UAV ferry algorithm in post-disaster DTN environment is analyzed, and the performance evaluation as well as the comparison of different algorithms are given. Finally, this paper looks forward to the future research direction of UAV ferry algorithm in DTN environment.

关键词： Routing Unmanned aerial vehicles Delays Data communication Protocols Optimization Relays

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Comparison of Location Privacy Protection Schemes in VANETs

Comparison of Location Privacy Protection Schemes in VANETs

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International Symposium on Computational Intelligence and Design, ISCID

作者： Yaqiong Ma Xiangyu Bai Inner Mongolia A.R. Key Laboratory of Wireless Networking and Mobile Computing College of Computer Science Inner Mongolia University Hohhot China

ISBN: (数字)9781728146539

ISBN: (纸本)9781728146546

Vehicular Ad-hoc Networks (VANETs) is a traditional mobile ad hoc network (MANET) used on traffic roads and it is a special mobile ad hoc network. As an intelligent transportation system, VANETs can solve driving safety and provide value-added services. Therefore, the application of VANETs can improve the safety and efficiency of road traffic. Location services are in a crucial position for the development of VANETs. VANETs has the characteristics of open access and wireless communication. Malicious node attacks may lead to the leakage of user privacy in VANETs, thus seriously affecting the use of VANETs. Therefore, the location privacy issue of VANETs cannot be ignored. This paper classifies the attack methods in VANETs, and summarizes and compares the location privacy protection techniques proposed in the existing research.

关键词： Privacy Trajectory Protocols Roads Correlation Probability distribution Wireless communication

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Traffic Image Acquisition and Compression Technology in Vehicular Ad Hoc Network

Traffic Image Acquisition and Compression Technology in Vehi...

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IEEE International Conference on Big Data and Cloud computing (BdCloud)

作者： Fu Pang Xiangyu Bai College of Computer Science Inner Mongolia University Hohhot China Inner Mongolia Key Laboratory of Wireless Networking and Mobile Computing Inner Mongolia University Hohhot China

ISBN: (数字)9781728143286

ISBN: (纸本)9781728143293

With the frequent occurrence of traffic accidents, the timely acquisition of traffic images using Vehicular Ad Hoc Network (VANET) technology is of great significance for traffic rescue and evidence preservation. However, due to the limited bandwidth of VANET, the amount of data transmitted is limited. In response to this problem, this paper designs an image acquisition algorithm. The algorithm selects several images from the driving recorder of the vehicles around the accident. These images are transmitted to the traffic management department. In addition, the selected images have strong temporal and spatial correlation, so they can be compressed by compressed sensing technology to further reduce the amount of data. Therefore, the method of processing images on the vehicle node using compressed sensing technology are proposed. Finally, the effectiveness of the image acquisition algorithm is verified by simulation experiments.

关键词： Accidents Image coding Roads Compressed sensing Vehicular ad hoc networks Bandwidth Cameras

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A Research of Vehicle Ad Hoc Network Incentive Mechanism

A Research of Vehicle Ad Hoc Network Incentive Mechanism

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International Conference on Electronics Information and Emergency Communication

作者： Xiaojuan Zhang Xiangyu Bai Qi Liu Inner Mongolia A.R. Key Laboratory of Wireless Networking and Mobile Computing Inner Mongolia University China

Vehicle Ad Hoc Network (VANET) is an on-board self-organizing network. The communication modes of VANET mainly include V2V and V2R. Due to the unique characteristics of VANET, such as high mobility and intermittent connections, resource transmission is unstable and delay is large. However, because of its limited conditions, the node is selfish in forwarding messages. In order to motivate nodes to cooperate with each other, three types of incentive mechanisms have been proposed to which provide forwarding data services. For recent *** work is summarize for VANET incentive mechanisms, firstly I will summarize the VANET and VANET incentive mechanisms; Then, I will introduce three major types of incentives and several types of core research issues; finally, I will compare existing work and summarize research challenges.

关键词： Vehicular ad hoc networks Online banking Wireless networks Protocols Servers

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Research of Routing Strategies Based on Network Encoding Under Vehicle networking

Research of Routing Strategies Based on Network Encoding Und...

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International Conference on Electronics Information and Emergency Communication

作者： Hua Zhang Bo Cui Xiangyu Bai Inner Mongolia A.R. Key Laboratory of Wireless Networking and Mobile Computing Inner Mongolia University China

Vehicular ad-hoc network (VANET) is a mobile Ad-hoc network composed of vehicles and roadside access points. It is a wireless network that enables information communication between vehicles and vehicles, between vehicles and access points. The vehicle-mounted network is different from the traditional wireless network, and has the characteristics of fast change of network topology, limited nodes, and intermittent connectivity of the network. Therefore, data transmission performance faces the challenges of low bandwidth utilization, large load, and high latency. In order to improve the efficiency of on-board network transmission and reduce the time delay, the network coding technology is proposed to significantly reduce the delay and improve the transmission efficiency. This paper summarizes the research on various routing strategies based on network coding in the VANET environment, and points out the future research directions through comparative analysis.

关键词： Network coding Vehicular ad hoc networks Routing Routing protocols Delays Encoding

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A Secure Satellite Remote Education System for Agricultural and Pastoral Areas Based on IPv6

A Secure Satellite Remote Education System for Agricultural ...

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International Conference on Electronics Information and Emergency Communication

作者： Qi Liu Xiangyu Bai Xiaopeng Luo Inner Mongolia A.R. Key Laboratory of Wireless Networking and Mobile Computing Inner Mongolia University Hohhot China

This paper proposes a satellite remote education system based on IPv6 due to the lack of network infrastructure in agriculture and pasturing areas. The system combines satellite network with DTN in order to deliver educational resources to the users in the farming and pastoral areas. In the special DTN of agricultural and pastoral areas, a new bundle encapsulation method is designed, which combines IPv6 and DTN. An endpoint can be identified by its IPv6 address and we propose a corresponding data transmission protocol for the network of IPv6 over DTN. We implement an interactive distance education system through reverse transport mechanism, DTN users can send their resource subscription information to the server. A security policy and a bundle authentication process are proposed to ensure the security of the DTN and the entire education system.

关键词： Signal to noise ratio Education Satellite broadcasting mobile nodes Logic gates Security

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An Energy Efficient Smartphone Pedometer Based on an Auto-Correlation Analysis

An Energy Efficient Smartphone Pedometer Based on an Auto-Co...

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IEEE International Conference on Big Data and Cloud computing (BdCloud)

作者： Runze Yang Baoqi Huang Jian Song Bing Jia Wuyungerile Li Inner Mongolia A.R. Key Laboratory of Wireless Networking and Mobile Computing Hohhot China Department of Information Technology Baoshang Bank Limited Beijing China

ISBN: (纸本)9781728111421;9781728111414

Smartphone pedometer is currently applied in various domains including health monitoring, context aware computing and Pedestrian Dead Reckoning (PDR). However, the limited and slowly increasing battery capacity of current smartphones results in severe contradictions with the fast development of various mobile applications and embedded sensors, which are usually hungry for energy. In terms of pedometer which has been available in every smartphone, most existing researches and practices focus on how to improve the step counting accuracy without considering its power consumptions. In this paper, we tackle with the well known auto-correlation based pedometer, and propose to substantially reduce its power consumptions based on a theoretical analysis. Firstly, we establish an error model for the traditional auto-correlation based step counting algorithm to analyze the influences of different factors on its performance. Secondly, in light of this model, we present an improved algorithm by simply calculating the acceleration variance instead of the more complicated auto-correlation coefficient to reduce its computational costs. Thirdly, an Android APP is implemented to count steps based on the presented algorithms. Finally, extensive experiments are conducted by involving different smartphones and different users under various scenarios. Experimental results reveal that, the proposed algorithm is able to achieve comparative and even superior step counting accuracy, but reduces power consumptions by 39.5% on average.

关键词： Acceleration Sensors Legged locomotion Accelerometers Energy consumption Power demand Correlation

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Enhancing Security and Scalability in Software Defined LTE Core Networks

Enhancing Security and Scalability in Software Defined LTE C...

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IEEE International Conference on Trust, Security and Privacy in computing and Communications (TrustCom)

作者： Ruichun Gu Xiaolong Zhang Lei Yu Junxing Zhang College of Computer Science Inner Mongolia University of Science and Technology Baotou China College of Computer Science Inner Mongolia University Hohhot China Inner Mongolia A.R. Key Laboratory of Wireless Networking and Mobile Computing Hohhot China

The rapid development of mobile networks has revolutionized the way of accessing the Internet. The exponential growth of mobile subscribers, devices and various applications frequently brings about excessive traffic in mobile networks. The demand for higher data rates, lower latency and seamless handover further drive the demand for the improved mobile network design. However, traditional methods can no longer offer cost-efficient solutions for better user quality of experience with fast time-to-market. Recent work adopts SDN in LTE core networks to meet the requirement. In these software defined LTE core networks, scalability and security become important design issues that must be considered seriously. In this paper, we propose a scalable channel security scheme for the software defined LTE core network. It applies the VxLAN for scalable tunnel establishment and MACsec for security enhancement. According to our evaluation, the proposed scheme not only enhances the security of the channel communication between different network components, but also improves the flexibility and scalability of the core network with little performance penalty. Moreover, it can also shed light on the design of the next generation cellular network.

关键词： Security Scalability Software Long Term Evolution Local area networks Cloud computing Software defined networking

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Throughput analysis of network coding in multi-hop wireless mesh networks using queueing theory

arXiv

引用

arXiv 2018年

作者： Kafaie, Somayeh Ahmed, Mohamed H. Chen, Yuanzhu Dobre, Octavia A. Wireless Networking and Mobile Computing Laboratory Memorial University St. John'sNLA1B 3X5 Canada Faculty of Engineering and Applied Science Memorial University St. John'sNLA1B 3X5 Canada Department of Computer Science Memorial University St. John'sNLA1B 3X5 Canada

In recent years, a significant amount of research has been conducted to explore the benefits of network coding in different scenarios, from both theoretical and simulation perspectives. In this paper, we utilize queueing theory to propose an analytical framework for bidirectional unicast flows in multi-hop wireless mesh networks, and study throughput of inter-flow network coding. We analytically determine performance metrics such as the probability of successful transmission in terms of collision probability, and feedback mechanism and retransmission. Regarding the coding process, our model uses a multi-class queueing network where coded packets are separated from native packets and have a non-preemptive higher priority over native packets, and both queues are in a stable state. Finally, we use simulations to verify the accuracy of our analytical model. Copyright © 2018, The Authors. All rights reserved.

关键词： Network coding

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