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Novel one-hop transmission algorithm in wireless network based on network coding

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) 2008年第SUPPL. 1期38卷 213-216页

作者： Lu, Yifei Ju, Xi Tao, Jun Xia, Qin Wang, Cuihan School of Computer Science and Engineering Southeast University Nanjing 211189 China Key Library of Computer Network and Information Integration Nanjing 210096 China

To solve the problem of the efficient transmission in error-prone wireless network, an ideal transmission model based on coding group (ITCG) is proposed in this paper. Furthermore, a retransmission model based on coding group (RTCG) is introduced due to the error-prone channel in wireless network. Also, a novel transmission algorithm of retransmission model is proposed based on coding group (ARTCG). At last, through the experiment, the transmission delay and throughput of the unicast and ARTCG are separately analyzed. Simulation results show that ARTCG can improve the transmission efficiency and solve the sharp decrement of performance with the condition of node's burst error. ARTCG can keep the transmission fairness of the different data.

关键词： Wireless networks

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Node-failure tolerance of topology in wireless sensor networks

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International Journal of network Security 2008年第2期7卷 261-264页

作者： Wang, Liang-Min Ma, Jian-Feng Guo, Yuan-Bo The Computer School Jiangsu University Zhenjiang 212013 China Key Laboratory of Computer Network and Information Security of Education Ministry Xidian University Xi'an Shaanxi 710071 China School of Electronic Technology Engineering University of PLA Zhengzhou 450004 China

Three basic questions are presented and answered in researching on nodefailure topology in wireless sensor network. First, what is the definition of nodefailure tolerance? Second, how to evaluate this tolerance abilit... 详细信息

关键词： Sensor nodes

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Clustering control algorithm of wireless sensor networks in low probability event scenario

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Jisuanji Yanjiu yu Fazhan/computer Research and Development 2008年第10期45卷 1662-1668页

作者： Liu, Linfeng Jin, Shan School of Computer Science and Engineering Southeast University Nanjing 210096 China Key Laboratory of Computer Network and Information Integration Southeast University Nanjing 210096 China School of Computer Nanjing University of Posts and Telecommunications Nanjing 210003 China

In order to fulfill the task of prolonging network lifetime, the primary objective of wireless sensor network execution is to consume the battery energy efficiently. The network topology, which is the important foundation of upper layer protocols, serves as the supportive groundwork for this goal. A significant feature of WSN is application diversity;therefore the topology control techniques under different event scenarios should be obviously different. In searching for a topology control scheme that conforms to the low probability event scenario, a theoretical model of sensor networks is constructed and analyzed. Because the listening cost is the dominating power cost under the low probability event scenario. It turns out that there is consanguineous relationship between network lifetime and the k-center problem, which are dual to each other in the theoretical sense. A periodical clustering algorithm (PCA) based on k-center problem is introduced consequently. PCA is composed of three phases: neighbor discovery phase, head decision phase and node attachment phase. PCA algorithm reflects the thinking of the load balancing, while minimizing the number of cluster heads. The performance of PCA algorithm is analyzed through theoretical model and simulation experiments, which indicates that PCA algorithm can be deployed quickly, and a well-constructed topology and an effectively prolonged network lifetime can be acquired.

关键词： Clustering algorithms

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CRMS: A Collusion-Resistant Matrix System for Group key Management in Wireless networks

CRMS: A Collusion-Resistant Matrix System for Group Key Mana...

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IEEE International Conference on Communications (ICC)

作者： W. Wang J. Ma S. Moon Key Laboratory of Computer Networks and Information Security (Ministry of Education) Xidian University Xi'an China Mobile Network Security Technology Research Center Kyungpook National University Daegu South Korea

In this paper, a collusion-resistant matrix system (CRMS) for group key managements is presented. The CRMS is defined as a collection of subsets of users, and the keys held by users in CRMS are organized in a hierarchical matrix manner. After describing the join and leave protocols, we prove that CRMS has lceil2N/trceil-collusion resistant capability. Moreover, the suggestion of how to select the parameters in CRMS is given. The simulated experiments show that CRMS is a practical group key management in wireless networks.

关键词： Wireless networks computer network management Communications Society Laboratories information security computer science education Protocols Technology management Moon National security

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Heuristic cluster control algorithm of wireless sensor networks topology

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Jisuanji Yanjiu yu Fazhan/computer Research and Development 2008年第7期45卷 1099-1105页

作者： Liu, Linfeng Liu, Ye Key Laboratory of Computer Network and Information Integration Southeast University Nanjing 210096 China School of Computer Science and Engineering Southeast University Nanjing 210096 China Nanjing Research Development Center Alcatel Shanghai Bell Nanjing 210037 China

The main objective of wireless sensor network design is to fulfill the task of prolonging network lifetime. The network topology, which is the important foundation of upper layer protocols, serves as the supportive groundwork for achieving this goal. In order to design a topology control algorithm that conforms to the lifetime requirement of wireless sensor networks, the defects of previous algorithms are firstly explored. There are some defects such as deployment restriction, low reliability or poor rationality found in these algorithms. Then a WSN cluster model is constructed and analyzed theoretically according to the requirement of clustering, which ultimately turns to a clustering and cluster-head electing problem with approximate optimizing objectives. A heuristic topology control algorithm of cluster (HTCC) is proposed as a solution to the above problem. HTCC is composed of two methods: cluster constructing (CC) method and cluster-head electing (CHE) method. The clusters can be partitioned by the CC method, and the cluster-heads can be selected by the CHE method. The performance of the algorithm is analyzed and validated through experiments. The result indicates that the network topology of clusters with proper size has the characteristics of low energy consumption and high robustness, effectively prolonging the lifetime of the whole network.

关键词： Wireless sensor networks

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Universal provable security authentication protocol for multi-domain

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Wuhan Daxue Xuebao (Xinxi Kexue Ban)/ Geomatics and information Science of Wuhan University 2008年第10期33卷 1051-1054页

作者： Zhu, Hui Li, Hui Yang, Jiaxi Wang, Yumin Key Laboratory of Computer Network and Information Security Xidian University 2 South Taibai Road Xi'an 710071 China

The problems of existing authentication frameworks are analyzed, and a universal authentication protocol is proposed for the multi-domain. Moreover, entity authentication for cross-domain is supported in the protocol. Especially, by using the modular approach under the Canetti-Krawczyk model, the security of entity authentication is analyzed. It is shown that the proposed protocol is secure and could achieve the security requirements, and the protocol is a secure and fast authentication with high expansibility. This protocol can be applied to the authentication between the networks which use the difference authentication frameworks.

关键词： Authentication

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Storage Requirements for key Distribution in Sensor networks

Storage Requirements for Key Distribution in Sensor Networks

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International Conference on Sensor Technologies and Applications, SensorComm

作者： Zhihong Liu Jianfeng Ma Qiping Huang SangJae Moon Key Laboratory of Computer Networks and Information Security of Ministry of Education Xidian University China School of Communication Engineering Xidian University China Mobile Network Security Technology Research Center Kyungpook National University South Korea

ISBN: (纸本)9781424432127

Sensor networks are resource-constrained, which makes developing efficient key distribution scheme a challenging problem. In general, many key distribution techniques are designed to address the trade-off between limited resources and security, no key distribution technique is ideal to all the scenarios where sensor networks are used. In this paper, we primarily focus on storage requirements of several key distribution schemes in sensor networks, and obtain their lower bounds on the amount of information each user has to keep secret by modeling the key distribution schemes with an information theoretic framework.

关键词： Cryptography Security Complexity theory Servers Entropy Memory management Protocols

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Decision support system of variable rate irrigation based on mathematical model and GIS

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IFIP Advances in information and Communication Technology 2008年 259卷 1011-1019页

作者： Zhou, Jianjun Liu, Gang Li, Su Wang, Xiu Zhang, Man Key Laboratory of Modern Precision Agriculture System Integration Research China Agricultural University Beijing100083 China Computer College Beijing Technology and Business University Beijing100037 China National Engineering Research Center for Information Technology in Agriculture Beijing100089 China

ISBN: (纸本)9780387772523

Owing to the difference of soil water in the farm, a system of variable rate irrigation was developed with Visual C++ and MapObjects that can save water as well as can improve economy benefit. Soil water content can be forecasted by using the forecast model of soil water, according to the real soil water content of different sampling sites in this system. Irrigation or not can be decided by comparing the current soil content with the light drought and serious drought index of the crop. The water amount of irrigation can be decided by the analysis of economy benefit according to the model of water consumption-yield, thus the irrigation prescription map can be created. This system can also query the information of fields, manage and analysis the data of soil. The test was performed in national precision agriculture demo farm. © 2008, Springer New York LLC. All rights reserved.

关键词： Geographic information systems

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Trust valuation model in MANET

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Jisuanji Yanjiu yu Fazhan/computer Research and Development 2008年第5期45卷 765-771页

作者： Ye, Ayong Ma, Jianfeng Key Laboratory of Computer Networks and Information Security Xidian University Xi'an 710071 China Key Laboratory of Network Security and Cryptology Fujian Normal University Fuzhou 350007 China

Being infrastructureless, node trust plays an important role in security and reliability of mobile ad hoc networks. A new trust valuation model based on the experience of node is given to evaluate trustworthiness between network nodes. To improve the accuracy and rationality of node trust evaluation in a mobile network, the evidence theory is introduced to evaluate trust and combine multilateral experience from others. In addition, observation-frame is introduced to incorporate experience's time-sensitivity, which provides adequate support to cope with strategically altering behaviors of malicious nodes efficiently. A low-cost recommendation technique based on sleep mechanism is provided for neighboring nodes to share experience information, which obtains faster convergence rate and reduces the whole energy dissipation. Together, recommendation trust is quantitatively evaluated by a fuzzy similarity measure, which significantly increases the resilience against dishonest feedbacks. In comparison with the existing works, a complete trust valuation model is designed, with emphasis on its adaptability to dynamics of trust, robustness and resource-saving. This model can be used in coordination and security decision for network services. Finally, the theoretical analysis and simulations is given to evaluate the proposed techniques.

关键词： Ad hoc networks

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Identity (ID)-based threshold multi-secret sharing scheme

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Ruan Jian Xue Bao/Journal of Software 2008年第10期19卷 2739-2745页

作者： Pang, Liao-Jun Pei, Qing-Qi Jiao, Li-Cheng Wang, Yu-Min Key Laboratory of Computer Network and Information Security Xidian University Xi'an 710071 China Institute of Intelligent Information Processing Xidian University Xi'an 710071 China

In order to avoid the flaw of the secret shadow distribution method in the existing secret sharing schemes, a secret shadow distribution method is proposed with the ID-based public key technology integrated, which uses the participant's private key as his master shadow. Firstly, security analyses are made on Zheng's signcryption scheme, which shows his scheme does not offer forward secrecy. Then, an improvement is made on Zheng's signcryption scheme and a new scheme is proposed. Based on the proposed signcryption scheme and the ID-based public key cryptosystem, a new threshold multi-secret sharing scheme is proposed. The problem of the secret shadow distribution is well resolved, and no information exchange is needed between the secret dealer and each participant in advance. The secret shadow distribution can be processed during the secret distribution. At the same time, the proposed scheme offers forward secrecy. That is to say, even if the private key of the secret dealer is exposed, the security of the shared secrets will not be threatened. Therefore, the proposed ID-based secret sharing scheme is more secure and effective than others, and it can be more applicable.

关键词： Public key cryptography

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