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Differentiated priority queue management in event-driven wireless sensor networks

Ruan Jian Xue Bao/Journal of Software 2012年第SUPPL.期23卷 120-125页

作者： Yang, Qi Dong, Yong-Qiang School of Computer Science and Engineering Southeast University Nanjing 211189 China Key Laboratory of Computer Network and Information Integration of Ministry of Education Southeast University Nanjing 211189 China

In event-driven wireless sensor networks, many redundant packets flow from monitored sites through the network and to the sink, resulting in a typical funnel effect which affects event reliability, negatively. Taking this transport property into account, a differentiated priority queue management scheme is presented, in which the packets with same event identification are prioritized according to their arrival sequence, and scheduled differentially. The queue model, packet prioritization strategy and event table maintaining methods are examined in detail. Simulation results show that the queue management scheme can improve event reliability of event-driven sensor networks in terms of event detection ratio, accuracy ratio, and event delay efficiently.

关键词： Wireless sensor networks

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miRDeathDB:a database bridging microRNAs and the programmed cell death

miRDeathDB:a database bridging microRNAs and the programmed ...

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第五届全国生物信息学与系统生物学学术大会暨国际生物信息学前沿研讨会高通量时代的生物信息学与系统生物学

作者： Jianzhen Xu Yan-Hui Li College of Bioengineering Henan University of TechnologyZhengzhouChina 450001 Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular Sciences Ministry of EducationPeking University Health Science Center Scientific Data Center Computer Network Information CenterChinese Academy of Sciences

Background:MicroRNAs(miRNAs) are a class of small non-coding RNAs,which negatively regulate protein coding genes at the posttranscriptional *** tiny regulators have been associated to almost all known physiological and pathological *** defects in miRNAs have been implicated in the etiology of many forms of human diseases. Apoptosis,autophagy and programmed necrosis are three distinct yet intimately connected functional modules of programmed cell death(PCD).In the past few years,increasing evidences suggested that aberrant expression of miRNAs regulate different subroutines of *** the roles of miRNAs in PCD network has attracted interests of researchers from a wide range of ***,a knowledge depository,which integrates information for both miRNAs and their targets in PCD network,will be of great help. Methods:Based on PubMed search,we firstly collected literatures which reported the roles of miRNAs in PCD before April ***,these literatures were inspected manually and the miRNAs and their targets genes were *** criterion for selecting PCD associated miRNAs in miRDeathDB is *** morphological or biochemical data should be provided when the miRNAs(or their targets) are manipulated in cell death *** miRDeathDB(http://***/mirdeathdb/) was developed,which allows users to browse,search and analyze the PCD associated miRNAs. Results:In total,210 records covering 86 miRNAs and 95 protein coding genes were collected in five model species:humans(Homo sapiens),mice(Mus musculus),fruit flies (Drosophila melanogaster),rat(Rattus norvegicus) and African frog(Xenopus tropicalis). Users can search the database for both miRNAs and protein coding entries based on principal *** addition,users can browse and obtain full lists of miRNAs involved in PCD for any given *** data can be freely downloaded or accessed via our website for academic uses. Conclusions:miRDeathDB provides a valuab

关键词： microRNAs apoptosis autophagy necrosis

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Wireless sensor network-enabled intravenous infusion monitoring

Wireless sensor network-enabled intravenous infusion monitor...

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作者： Zhang, Y. Zhang, S.F. Ji, Y. Wu, G.X. Key Laboratory of Computer Network and Information Integration Southeast University Ministry of Education China

Considering that intravenous in blood infusion, usually applied without a proper control of the progress and velocity under unreliable manual monitoring practice, is the most popular and frequent clinical activity throughout the world, which can potentially endanger a patient's life, leads to a huge burden as patients, relatives and nursing staff can cause serious cases of medical negligence. In order to resolve this problem and provide a networkable solution the authors propose a novel radio frequency identification-based wireless sensor networkable intravenous infusion monitoring system. The proposed system is a wireless sensor system based on taking a fork-type light barrier as a sensor, a micro-control unit (MCU) as a ZigBee-based radio frequency device. The system's performance is evaluated through some laboratory experiments using tuning algorithm to demonstrate that the results show the required accuracy of the system to meet practical needs. © 2011 The Institution of Engineering and Technology.

关键词： Zigbee

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Restrictive mechanism of flow control among non-cooperative Internet users

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Science China(information Sciences) 2011年第1期54卷 12-22页

作者： TAO Jun1,2,ZHONG Xiao1,2 & LU YiFei1,2 1key laboratory of computer network and information Integration,Southeast University, Ministry of Education,Nanjing 210096,China 2School of computer Science and Engineering,Southeast University,Nanjing 210096,China 1. Key Laboratory of Computer Network and Information Integration Southeast University Ministry of Education Nanjing 210096 China2. School of Computer Science and Engineering Southeast University Nanjing 210096 China

The flow and congestion control methods based on one-shot game model with non-cooperative game theory can explain the non-cooperative behavior of Internet ***,the low effciency of equilibrium solutions affects their *** the behavior of flow and congestion control based on infinitely repeated game models is addressed;the repeated and infinitely repeated flow and congestion control game model is presented; the existence and optimization of the Nash equilibrium point are proved;the discount factor in repeated game is discussed;the punishment and threat strategy to users'misbehavior is studied in N-users infinitely flow control game;the punishment restrictive method of users'behavior is designed in infinitely and finitely games;finally,a flow control algorithm based on repeated game,FCAR,is provided based on the conclusions of repeated game *** results of experiment and simulation show that FCAR algorithm could regularize and restrict users' misbehavior *** algorithm can also make non-cooperative Internet users achieve cooperation in order to optimize the utility of the whole flow and congestion control system.

关键词： Nash equilibrium utility infinitely and finitely repeated game flow and congestion control

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Lightweight Privacy-Aware Yet Accountable Secure Scheme for SM-SGCC Communications in Smart Grid

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Tsinghua Science and Technology 2011年第6期16卷 640-647页

作者： Wei Ren Jun Song Yu Yang Yi Ren School of Computer Science China University of Geosciences Wuhan 430074 China Shandong Provincial Key Laboratory of Computer Network Jinan 250014 China Key Laboratory of Network and Information Attack and Defense Technology of Ministry of Education Beijing University of Posts and Telecommunications Beijing100876 China Department of Information and Communication Technology University of Agder （UiA） Grimstad Norway

Smart grid is envisioned as a critical application of cyber-physical systems and of the internet of things. In the smart grid, smart meters equipped with wireless sensors can upload meter readings （data） to smart grid control and schedule centers via the advanced metering infrastructure to improve power delivery efficiency. However, data gathered in short intervals, such as 15 minutes, will expose customers＇ detailed daily activities （for example, when they get up and when they use oven） using nonintrusive appliance load monitoring. Thus, data must be hidden to protect customers＇ privacy. However, data accountability is still required for emergency responses or to trace back suspected intrusions, even though the data is anonymous. In addition to desired security requirements, this imposes two extra tasks： Sensors in smart meters usually have resource constraints; thus, the desired security protocols have to remain lightweight in terms of computation and storage cost. Furthermore, scalability and flexibility are required since there exist vast meters. This paper presents a lightweight Privacy-aware yet Accountable Secure Scheme called PASS which guarantees privacy-aware accountability yet tackles the above challenges in the smart grid. A formal secu- rity analysis justifies that PASS can attain the security goals, while a performance analysis verifies that PASS requires few computations, and is scalable and flexible.

关键词： smart grid privacy smart meter sensor accountability

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Anonymous authentication-oriented vehicular privacy protection technology research in VANET

Anonymous authentication-oriented vehicular privacy protecti...

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2nd Annual Conference on Electrical and Control Engineering, ICECE 2011

作者： Zhang, Shuai Tao, Jun Yuan, Yijia Key Laboratory of Computer Network and Information Integration Ministry of Education Southeast University Nanjing China

ISBN: (纸本)9781424481637

Vehicular Ad hoc networks (VANET) consists of several vehicular nodes and uses 802.11p protocol for communication. Because of its unique characteristics, such as fast speed, serious Doppler effect, large node number etc, VANET is vulnerable to be affected by a variety of security threats. In this paper, we firstly introduce the system architecture, applications and categories of attacks in VANET. Then we summarize several types of anonymous authentication techniques which aim at protecting the privacy of vehicular nodes, then discuss and compare the typical anonymous authentication schemes of each type. Finally, we present the problems which should be considered in the next step of research. © 2011 IEEE.

关键词： Vehicular ad hoc networks

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Universal Three-Party Quantum Secret Sharing Against Collective Noise

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Communications in Theoretical Physics 2011年第4期55卷 589-593页

作者：杨宇光王园滕义伟温巧燕 College of Computer Science and Technology Beijing University of Technology State Key Laboratory of Integrated Services Network Xidian University State Key Laboratory of Information Security(Graduate University of Chinese Academy of Sciences) State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications

we present a robust and universal quantum secret sharing protocol with four-qubit decoherence-free （DF） states against collective noise. The transmission＇s safety is ensured by the nonorthogonality of the noiseless states traveling on the quantum channel. Although this scheme uses entangled states for encoding, only single-particle product measurements are required.

关键词： quantum secret sharing 03.67.Hk decoherence-free collective noise

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A public cryptosystem from R-LWE

A public cryptosystem from R-LWE

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IEEE International Conference on Communication Software and networks

作者： Wei, Ping Wu, Liqiang Yang, Xiaoyuan Hao, Bin Key Laboratory of Network and Information Security of APF Engineering College of APF Xi'an 710086 China Key Laboratory of Computer Network and Information Security Ministry of Education Xidian University Xi'an 710071 China

ISBN: (纸本)9781612844855

Recently Vadim Lyubashevsky etc. built LWE problem on ring and proposed a public cryptosystem based on R-LWE, which, to a certain extent, solved the defect of large public key of this kind, but it didn't offer parameter selections and performance analysis in detail. In this paper an improved scheme is proposed by sharing a ring polynomial vector that makes public key as small as 1/m of the original scheme in multi-user environments. In additions, we introduce a parameter r to control both the private key space size and decryption errors probability, which greatly enhances the flexibly and practicality. The correctness, security and efficiency are analyzed in detail and choice of parameters is studied, at last concrete parameters are recommended for the new scheme. © 2011 IEEE.

关键词： Encryption Hard problem based on lattice Lattices Noise Parameters selection Polynomials Public Cryptosystem Public key R-LWE

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A fast broadcast protocol for wireless sensor networks

A fast broadcast protocol for wireless sensor networks

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4th International Conference on Human-Centric Computing, HumanCom'11 and the 6th International Conference on Embedded and Multimedia Computing, EMC'11

作者： Zhang, Yang Wang, Yun School of Computer Science and Engineering Southeast University Key Laboratory of Computer Network and Information Integration MOE Nanjing China

ISBN: (纸本)9789400721043

Broadcast is a hot topic in wireless sensor network research. The main challenges are from network instability and complexity of communication collision. Currently, the broadcast protocols for sensor network focus on reducing the energy overhead without concerning thoroughly about the delay issue. In some real-time scenarios, these broadcast protocols are not very appropriate to some extent. This paper proposes a new kind of rapid broadcast protocol for sensor network, which introduces the concept of the umbrella topology. The simulation experiment shows that an umbrella topology structure is more efficient to solve the delay issue. Finally, we compare the protocol we proposed with the simple broadcast protocol called flooding. The result shows that the fast broadcast protocol can reduce the number of transmissions and decrease the routing delay. © 2011 Springer Science+Business Media B.V.

关键词： Wireless sensor networks

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High-Order Bit Independence Criterion Test for the S-boxes

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Wuhan University Journal of Natural Sciences 2011年第5期16卷 447-451页

作者： GAO Sheng MA Wenping ZHU Jiwei Key Laboratory of Computer Network and Information Securityof the Ministry of Education/Xidian University Xi'an 710071Shannxi China

A new security test for the substitution boxes （S-boxes） high-order bit independence criterion （HOBIC） test, is presented. Different from the previous security tests for S-boxes, the HOBIC test can be used to measure the strength of an S-box against attacks that keep some of its input bits constant. Test results over the S-boxes of Data Encryption Standard （DES） and Advanced Encryption Standard （AES） are given and some possible applications of the HOBIC test are analyzed. Meanwhile, the source code for a basic version of the HOBIC test is also provided, the implement process of which shows that it is very fast and efficient for practical applications .

关键词： cryptography Boolean functions S-boxes highorder bit independence criterion （HOBIC） security test

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