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26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006

作者： Wang, Haiguang Kong, Peng-Yong Guan, Winston Seah Khoon Networking Department Institute for Infocomm Research Electrical and Computer Engineering Department National University of Singapore

ISBN: (纸本)0769525415

In a wireless sensor network, energy efficient transmissions are important because each node has a limited battery. On the other hand, the energy limitation should not compromise the robustness in end-to-end packet delivery. This paper proposes an energy efficient routing scheme that can ensure high robustness despite dynamic link quality. The key ideas are to form a routing tree with one degree of redundancy where each node maintains two parents, namely default and backup, toward the sink, and to dynamically switch between the default and backup links depending on the dynamic link quality. For energy efficiency, the default parents are selected based on the minimal expected transmission (METX) criterion while the backup parents are selected with a combination of METX and signal strength criteria. The switching mechanism is designed to be adaptive with inertia so that unnecessary changes in route can be avoided. The proposed routing scheme has been evaluated through NS-2 simulator. The results confirm that a 36% improvement in robustness can be achieved in a random topology without any significant degradation in energy efficiency. © 2006 IEEE.

关键词： Energy efficiency

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Modeling key caching for mobile IP authentication, authorization, and accounting (AAA) services

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IEEE Transactions on Vehicular Technology 2009年第7期58卷 3596-3608页

作者： Lin, Phone Cheng, Shin-Ming Liao, Wanjiun Department of Computer Science and Information Engineering Graduate Institute of Networking and Multimedia National Taiwan University Taipei 106 Taiwan Department of Electrical Engineering National Taiwan University Taipei 106 Taiwan

The Mobile IP Authentication, Authorization, and Accounting (AAA) framework architecture is designed to protect signaling messages from eavesdropping by malicious attackers. The message exchanges for AAA incur heavy signaling overhead and long network access latency for mobility service. To solve this problem, the most typical approach is to adopt a key caching mechanism so that the authentication can locally be done and so that the signaling overhead can be significantly reduced. However, in the literature, very little work has conducted a thorough analytical study on the proposed key caching scheme. As a result, the statistical behavior of these schemes cannot be well justified. In this paper, we develop an analytical model that describes the key caching behavior in Mobile IP networks. The accuracy of this model is validated by simulations. Based on the performance analysis, we then propose an adaptive algorithm that dynamically adjusts key cache size so that the signaling overhead can be minimized. © 2009 IEEE.

关键词： Authentication

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A model checking-based security analysis framework for IoT systems

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High-Confidence Computing 2021年第1期1卷 24-34页

作者： Zheng Fang Hao Fua Tianbo Gu Zhiyun Qian Trent Jaeger Pengfei Hu Prasant Mohapatra Department of Computer Science University of CaliforniaDavisUnited States Azure Networking team MicrosoftUnited States Computer Science and Engineering department University of CaliforniaRiversideUnited States School of Computer Science and Technology Shandong UniversityChina Computer Science and Engineering department Pennsylvania State UniversityUnited States

IoT systems are revolutionizing our life by providing ubiquitous computing,inter-connectivity,and automated ***,the increasing system complexity poses huge challenges for security as IoT devices are dis-tributed,highly heterogeneous,and can directly interact with the physical *** IoT systems,bugs in device firmware,defects in network protocols,and design flaws in automation rules can lead to system breach or *** challenge gets even more escalated as the possible attacks may be chained together in a long sequence across multiple layers,rendering the existing vulnerability analysis frameworks *** this paper,we present ForeSee,a model checking-based framework to comprehensively evaluate IoT system *** builds a multi-layer IoT hypothesis graph by simultaneously modeling all of the essential components in IoT systems,including the physical environment,devices,communication protocols,and *** model checker can then analyze the generated hypothesis graph to validate system security properties or generate attack paths if there are any *** optimization algorithm is further introduced to reduce the computational complexity of our *** framework verifies hypothesis graphs with millions of nodes in less than 100 *** illustrative case studies show that our framework can detect more potential threats than the existing approaches.

关键词： IoT Security and privacy Model checking Hypothesis graph

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Modeling, Capacity Studies, Antenna and System Designs for 6G/B6G 3D Continuous-Space Radio Channels Enabled by Electromagnetic Information Theory

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IEEE Communications Surveys and Tutorials 2025年

作者： Wang, Cheng-Xiang Li, Junling Huang, Jie Huang, Chen Zhang, Zhaoyang Liu, Ying Zhou, Shidong Chen, Yunfei You, Xiaohu Gao, Xiqi Cui, Tie Jun Renzo, Marco Di Thompson, John Haas, Harald Schober, Robert Zhang, Rui Southeast University National Mobile Communications Research Laboratory School of Information Science and Engineering Nanjing211189 China Purple Mountain Laboratories Nanjing211111 China Zhejiang University Zhejiang Provincial Key Laboratory of Information Processing Communication and Networking College of Information Science and Electronic Engineering Hangzhou310007 China Xidian University National Key Laboratory of Radar Detection and Sensing Xi'an710071 China Tsinghua University State Key Laboratory on Microwave and Digital Communications Beijing100084 China University of Durham Department of Engineering DurhamDH1 3LE United Kingdom Southeast University State Key Laboratory of Millimeter Waves School of Information Science and Engineering Nanjing211189 China UniversitèParis-Saclay Laboratoire des Signaux et Systèmes CNRS CentraleSupélec Gif-sur-Yvette91192 France Centre for Telecommunications Research - Department of Engineering King's College London LondonWC2R 2LS United Kingdom School of Engineering EdinburghEH9 3BF United Kingdom Cambridge University Department of Engineering CambridgeCB2 1PZ United Kingdom Institute for Digital Communications Erlangen91054 Germany The Chinese University of HongKong School of Science and Engineering Shenzhen Research Institute of Big Data Shenzhen518172 China National University of Singapore Department of Electrical and Computer Engineering 117583 Singapore

Channel theory is a fundamental theory of wireless communications. The sixth generation (6G) and beyond 6G (B6G) wireless communication networks are expected to provide space-air-ground-sea global coverage. Base stations and users tend to move in three dimensional (3D) continuous spaces, while antennas and propagation environments can be tightly coupled. The underlying channels show an evolutionary trend to 3D continuous-space radio channels that combine antennas and wireless propagation channels, in comparison to discrete local-space wireless propagation channels in previous generations. This introduces new challenges for channel modeling, channel capacity analysis, antenna design, system design, etc. To address these challenges, this paper performs a comprehensive study on 3D continuous-space radio channels in 6G/B6G with the aid of electromagnetic information theory (EIT) that integrates electromagnetic theory, information theory, wireless propagation channel modeling theory, and antenna theory. We start by revealing the connections and gaps between these four fundamental theories. Then, an in-depth investigation on the four major research thrusts of 3D continuous-space radio channels is provided: 1) channel measurements and modeling, 2) channel capacity analysis, 3) general antenna design, and 4) wireless system design. We aim to explore the intrinsic relationships between antenna parameters, channel parameters, channel characteristics, channel capacity, and communication system performance. Finally, future research directions and challenges for 3D continuous-space radio channels are outlined. Our study endeavors to establish a fundamental framework for 3D continuous-space radio channels, with the potential to catalyze breakthroughs in 6G/B6G theories. © 1998-2012 IEEE.

关键词： Antenna grounds

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YAES - A modular simulator for mobile networks

YAES - A modular simulator for mobile networks

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8th ACM Symposium on Modeling, Analysis and Simulation of Wireless and Mobile Systems

作者： Bölöni, Ladislau Turgut, Damla Networking and Mobile Computing Laboratory Electrical and Computer Engineering Department University of Central Florida

ISBN: (纸本)1595931880

Developing network protocols for mobile wireless systems is a complex task, and most of the existing simulator frameworks are not well suited for experimental development. The YAES simulation framework was specifically developed such that it allows the fast prototyping of networking protocols, and support real-time experimentation and refactoring. By providing a large set of abstractions and generic implementations, a number of frequently used techniques such as genetic algorithms or neural networks can be created in matter of minutes. Our experience shows that by requiring only Java programming skills which computer science and engineering students commonly possess, YAES can be a useful tool for classroom use, as well. This paper presents the considerations behind the YAES architecture and provides a description of the system. As a case study, we present the steps necessary for running experiments on the energy efficiency behavior of the Weighted Clustering Algorithm (WCA). Copyright 2005 ACM.

关键词： Wireless telecommunication systems

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Secure, redundant, and fully distributed key management scheme for mobile ad hoc networks: An analysis

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Eurasip Journal on Wireless Communications and networking 2005年第4期2005卷 579-589页

作者： Joshi, Deepti Namuduri, Kamesh Pendse, Ravi Department of Electrical and Computer Engineering Wichita State University Wichita KS 67260 United States Electrical and Computer Engineering Department Wichita State University Wichita KS IEEE Advanced Networking Research Center Wichita State University Wichita KS

Security poses a major challenge in ad hoc networks today due to the lack of fixed or organizational infrastructure. This paper proposes a modification to the existing "fully distributed certificate authority" scheme for ad hoc networks. In the proposed modification, redundancy is introduced by allocating more than one share to each node in order to increase the probability of creating the certificate for a node in a highly mobile network. A probabilistic analysis is carried out to analyze the trade-offs between the ease of certificate creation and the security provided by the proposed scheme. The analysis carried out from the intruder's perspective suggests that in the worst-case scenario, the intruder is just "one node" away from a legitimate node in compromising the certificate. The analysis also outlines the parameter selection criteria for a legitimate node to maintain a margin of advantage over an intruder in creating the certificate.

关键词： Wireless telecommunication systems

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Mobile payment architectures for India

Mobile payment architectures for India

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16th National Conference on Communications, NCC 2010

作者： Kumar, Deepti Gonsalves, Timothy A. Jhunjhunwala, Ashok Raina, Gaurav Telecommunications and Computer Networking Group IIT Madras India Department of Computer Science and Engineering IIT Madras India

ISBN: (纸本)9781424463855

Mobile payments are a new and alternative payment method. Instead of using traditional methods like cash, cheque, or credit cards, a customer can use a mobile phone to transfer money or to pay for goods and services. Mobile payments have numerous advantages over traditional payment methods. Apart from their apparent flexibility, they enable consumers who do not have easy access to banking facilities to participate readily in financial transactions. Unfortunately, existing mobile payment solutions in India are not interoperable;i.e. they only offer services for merchants registered with them and do not allow the transfer of money to, or between, users of other payment providers. This limitation reduces the widespread adoption of mobile payments. In this paper, we propose new mobile payment architectures that support interoperability. A key technical aspect of the mobile payment process is to lookup customer details, for which we propose the following three design options: (1) a central database, (2) a peer-to-peer query, or (3) a hierarchical lookup. These options are evaluated using relevant metrics such as the complexity of implementation and scalability with respect to system size. Based on our evaluation we recommend that initially the peer-to-peer design is chosen, and once the technology is more widespread, the central database option should be adopted. ©2010 IEEE.

关键词： Interoperability

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An ID-based random key pre-distribution scheme for wireless sensor networks

An ID-based random key pre-distribution scheme for wireless ...

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7th International Conference on Computational Science, ICCS 2007

作者： Tran, Thanh Dai Choong, Seon Hong Networking Lab. Department of Computer Engineering Kyung Hee University Korea Republic of

ISBN: (纸本)9783540725893

When wireless senor networks (WSNs) are deployed in hostile areas, they indeed need to be secured by security mechanisms. To do this, cryptographic keys must be agreed on by communicating nodes. Unluckily, due to resource constraints, the key agreement problem in wireless sensor networks becomes quite intricate. In this paper, we propose a new ID-based random key pre-distribution scheme that is comparable to Du et al.'s scheme [2] in terms of network resiliency and memory usage. On the other hand, our later analysis shows that our scheme outperforms Du et al.'s scheme in terms of computational and communication overhead. © Springer-Verlag Berlin Heidelberg 2007.

关键词： Wireless sensor networks

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Uncertain Location Transmitter and UAV-Aided Warden Based LEO Satellite Covert Communication Systems

arXiv

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arXiv 2025年

作者： Peng, Pei Chen, Xianfu Xu, Tianheng Wu, Celimuge Zou, Yulong Ni, Qiang Soljanin, Emina School of Telecommunication and Information Engineering Nanjing University of Posts and Telecommunications Jiangsu Nanjing210003 China Shenzhen CyberAray Network Technology Company Ltd. Guangdong Shenzhen518042 China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai201210 China Meta-Networking Research Center The University of Electro-Communications Tokyo182-8585 Japan School of Computing and Communications Lancaster University LancasterLA1 4WA United Kingdom Department of Electrical and Computer Engineering Rutgers The State University of New Jersey PiscatawayNJ08854 United States

We propose a novel covert communication system in which a ground user, Alice, transmits unauthorized message fragments to Bob, a low-Earth orbit satellite (LEO), and an unmanned aerial vehicle (UAV) warden (Willie) attempts to detect these transmissions. The key contribution is modeling a scenario where Alice and Willie are unaware of each other’s exact locations and move randomly within a specific area. Alice utilizes environmental obstructions to avoid detection and only transmits when the satellite is directly overhead. LEO satellite technology allows users to avoid transmitting messages near a base station. We introduce two key performance metrics: catch probability (Willie detects and locates Alice during a message chunk transmission) and overall catch probability over multiple message chunks. We analyze how two parameters impact these metrics: 1) the size of the detection window and 2) the number of message chunks. The paper proposes two algorithms to optimize these parameters. The simulation results show that the algorithms effectively reduce the detection risks. This work advances the understanding of covert communication under mobility and uncertainty in satellite-aided systems. Copyright © 2025, The Authors. All rights reserved.

关键词： Drones

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QoS for storage subsystems using IEEE-1394

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ACM Transactions on Storage 2009年第4期4卷 1–17页

作者： Huang, Chih-Yuan Kuo, Tei-Wei Pang, Ai-Chun National Taiwan University Taiwan Department of Computer Science and Information Engineering Graduate Institute of Networking and Multimedia National Taiwan University Taipei 106 Taiwan

IEEE-1394 is widely adopted in various commercial products for computing, communication, and entertainment. Although many services with Quality-of-Service (QoS) supports are now available in systems over IEEE-1394, little work is done for QoS-based resource allocation. In this article, we aim at the design of a bandwidth reservation mechanism and its policy for isochronous requests, such as those from cameras. We then address the QoS support issue for asynchronous requests, such as those from disks, and an analytic framework for probability-based QoS guarantees. This work is concluded by the proposing of a topology configuration algorithm for IEEE-1394 devices. The capability of the proposed methodology and the analytic framework are evaluated by a series of experiments over a Linux-based system prototype. © 2009 ACM.

关键词： Quality of service

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