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Deterministic secure quantum communication without unitary operation based on high-dimensional entanglement swapping

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Science china(information Sciences) 2012年第2期55卷 360-367页

作者： LIU ZhiHao1,CHEN HanWu1,LIU WenJie2,XU Juan1 & LI ZhiQiang3 1School of Computer Science and engineering,Southeast university,Nanjing 211189,china 2School of Computer and Software,Nanjing university of information Science & Technology,Nanjing 210044,china 3college of information engineering,yangzhou university,yangzhou 225.09,china 1. School of Computer Science and engineering Southeast University Nanjing 211189 China2. School of Computer and Software Nanjing University of Information Science & Technology Nanjing 210044 China3. College of Information Engineering Yangzhou University Yangzhou 225009 China

By analysis of the basic properties of entanglement swapping of high-dimensional Bell states,a universal and general deterministic secure quantum communication(DSQC)protocol is proposed,in which unitary operation is not *** making use of the results of high-dimensional Bell measurement,the sender and the receiver can encode and decode the message respectively by performing the modular addition and *** mutually complementary bases are constructed;and according to the property of mutual complement,a method for checking security of the high-dimensional quantum channel is put *** common attack strategies are analyzed,and the corresponding error rates are *** the upper bound of the threshold of error rate is deduced.

关键词： deterministic secure quantum communication high-dimensional Bell state entanglement swap-ping high-dimensional Bell measurement

A Cooperation-planning Model Based on Bilevel Programming Decision

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武汉理工大学学报 2006年第S3期28卷 940-945页

作者： ZHANG Jianfeng ZHOU Lei BAO Zhenqiang BIAN Wenyu LI Xiangqing information engineering college,yangzhou university,yangzhou 225.09,china, information engineering college Yangzhou UniversityYangzhou 225009China

This paper is based on a resource constrained active network project;the constraint of the local resource and the time constraint of the cooperation resource are considered *** the respective benefit of the manager and cooperation partners is also considered *** a cooperation planning model based on bilevel multi-objective programming is de- signed,according to the due time and total *** an extended CNP based on the permitted range for resource and time requests is presented.A larger task set in scheduling cycle is on the permitting for the request of cooperation resource and time while the task manager itself may be permitted biding for *** a result,the optimization space for the cooperation planning is *** not every bidding task is successfully bid by invitee,and the task manager itself takes on some bidding ***,the genetic algorithm is given and the validity and feasibility of the model is proved by a case.

关键词： bilevel programming decision cooperation planning genetic algorithm range for resource and time sequest

Performance of iteratively decoded bit-interleaved coded modulation with chaos based interleaving strategies

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Science china(information Sciences) 2010年第4期53卷 833-841页

作者： ZOU XueLan1*, LIU WeiYan2 & FENG GuangZeng3 1Department of Electronic and information engineering, Zhejiang Institute of Media and Communications, Hangzhou 310018, china 2Department of information engineering, Jiangsu City Vocation college, Nanjing 210036, china 3college of Communication and information engineering, Nanjing university of Posts and Telecommunications, Nanjing 210003, china 1. Department of Electronic and information engineering Zhejiang Institute of Media and Communications Hangzhou 310018 China2. Department of Information Engineering Jiangsu City Vocation College Nanjing 210036 China3. College of Communication and Information Engineering Nanjing University of Posts and Telecommunications Nanjing 210003 China

Bit-interleaved coded modulation with iterative decoding (BICM-ID) is a bandwidth efficient trans- mission scheme which is well suitable for next-generation mobile communications. The interleaver design is critical to the high performance of BICM-ID. In this paper we investigate the application of the chaos theory to the interleaver design to further improve the performance of BICM-ID. A new interleaving scheme based on the chaos theory is proposed. Compared with the random interleaver, the proposed approach has the ad- vantages including lower system delay and higher transmission efficiency. Simulation results in both additive white Gaussian noise (AWGN) channel and Rayleigh fading channel are provided, which demonstrates that the new interleaver is better than the random interleaver and exhibits excellent performance when applied to the BICM-ID system.

关键词： chaos interleaving bit-interleaved coded modulation (BICM) iterative decoding

Series-based approximate approach of optimal tracking control for nonlinear systems with time-delay

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Progress in Natural Science:Materials International 2008年第12期18卷 1571-1576页

作者： Gongyou Tang~a Mingqu Fan~(a,b) a college of information Science and engineering,Ocean university of china,Qingdao 266100,china b college of information and engineering,Shandong university of Science and Technology,Jinan 250031,china [a]college of information Science and engineering Ocean University of China Qingdao 266100 China [b]college of information and engineering Shandong University of Science and Technology Jinan 250031 China

The optimal output tracking control (OTC) problem for nonlinear systems with time-delay is *** a series-based approx- imate approach,the original OTC problem is transformed into iteration solving linear two-point boundary value problems without time- *** OTC law obtained consists of analytical linear feedback and feedforward terms and a nonlinear compensation term with an infinite series of the adjoint *** truncating a finite sum of the adjoint vector series,an approximate optimal tracking control law is obtained.A reduced-order reference input observer is constructed to make the feedforward term physically *** exam- ples are used to test the validity of the series-based approximate approach.

关键词： Nonlinear systems Time-delay Tracking control Optimal control Observer

Research on an efficient method of license plate location

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Research on an efficient method of license plate location

Training, simulation, restoration expert system for power grid

2010 International Colloquium on Computing,Communication, Control, and Management (CCCM2010)

作者： Yuren Du information engineering college yangzhou university yangzhou,china Wen Shi Caiyun Liu information engineering college yangzhou university yangzhou,china

In the application of intelligent transportation system(ITS),license plate(LP) location is one of the most crucial *** view of illumination variance,noise,complex and dirty background,this paper presents a license plate location method,which based on edge information analysis with a preprocessing *** plate area contains rich edge and texture information,which can be used to detect a number plate *** results demonstrated the great robustness and efficiency of our method.

关键词： license plate location image enhancement edge extraction segmentation

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Journal of Central South university of Technology 2001年第1期8卷 69-73页

作者： LUO An,CHEN Qian (college of information engineering, Central South university, Changsha 410083, china) 1. college of information engineering Central South University 410083 Changsha China

The paper introduces some technology for training, simulation, restoration expert system of power grid, the structure of the system including function composition, hardware and software composition are discussed, knowledge representation and the method to establish device graphical library for expert system are given, the fault setting and diagnosis for training and simulation as well as restoration technology with deep first searching arithmetic and heuristic inference are presented. The research provides a good base for developing the training, simulation, restoration system of power companies.

关键词： training simulation restoration expert system power grid

A new generation of plastic optical fibers and its functional exploiting

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Science china(Technological Sciences) 2008年第12期51卷 2197-2207页

作者： YU RongJin & ZHANG Bing college of information Science and engineering,Yanshan university,Qinhuangdao 066004,china college of information Science and engineering Yanshan University Qinhuangdao 066004 China

A major problem of plastic optical fibers(POFs) is large transmission loss in comparison with silica *** adopting a new optical fiber structure,hollow-core Bragg fiber with cobweb-structured cladding,which can suppress the absorption losses of constituent materials by a factor of about 104―106,the problem of POFs with large losses is solved *** the advantage of flexibility and easy bending,the POFs with this structure can guide light with low transmission loss for information and energy in the wavelength range of visible light to terahertz(THz) wave(0.4―1000 μm).This new generation of POFs will find many applications.

关键词： plastic optical fiber hollow-core Bragg fiber cobweb-structured cladding visible light infrared light terahertz wave circular-polarization single-mode

Lattice dynamical simulation of methane hydrate

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Journal of Natural Gas Chemistry 2010年第1期19卷 43-46页

作者： Lin Wang, Shunle Dong Physics Department, college of information Science and engineering, Ocean university of china, Qingdao 266100, Shandong, china [a] Physics Department College of Information Science and Engineering Ocean University of China Qingdao 266100 Shandong China

INS （Inelastic Neutron Scattering） spectrum of methane hydrate was measured on MARI （a direct-geometry chopper spectrometer） at Ruther-ford Appleton Laboratory, UK. Compared with ice Ih, it is found that the whole spectrum of methane hydrate moves toward high-energy by about 1.5 meV. Using lattice dynamical （LD） technique, computer simulations of methane hydrate were carried out. In the simulations, four potential models （BE TIP3P, TIP4P, MCY） were employed to calculate the phonon density of states （PDOS）. Comparing the calculated PDOS spectrum with the experimental spectrum, it is found that BF, TIP4P, and TIP3P potential lattices give out well-separated translational and librational bands while MCY potential lattice is unstable to do so and this model is not suitable to describe hydrate system.

关键词： methane hydrate inelastic neutron scattering lattice dynamical simulation

Quantum secret sharing between m-party and n-party with six states

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Science china(Physics,Mechanics & Astronomy) 2009年第8期52卷 1191-1202页

作者： GAO Ting1,YAN FengLi2,3 & LI YouCheng2,3 1 college of Mathematics and information Science,Hebei Normal university,Shijiazhuang 050016,china 2 college of Physics and information engineering,Hebei Normal university,Shijiazhuang 050016,china 3 Hebei Advanced Thin Films Laboratory,Shijiazhuang 050016,china college of Mathematics and information Science Hebei Normal University Shijiazhuang 050016 China college of Physics and information engineering Hebei Normal University Shijiazhuang 050016 China Hebei Advanced Thin Films Laboratory Shijiazhuang 050016 China

A quantum secret sharing scheme between an m-party group and an n-party group is proposed using three conjugate bases.A sequence of single photons,each of which is prepared in one of the six states,is used directly to encode classical information in the quantum secret sharing *** this scheme,each of all m members in group 1 chooses randomly his/her own secret key individually and independently,and directly encodes his/her respective secret information on the states of single photons via unitary operations,then the last one sends 1/n of the resulting qubits to each member of group *** measuring their respective qubits,all members in group 2 share the secret information shared by all members in group *** renders impossible a Trojan horse attack with a multi-photon signal,a fake-signal attack with EPR pairs,an attack with single photons,and an attack with invisible *** give the upper bounds on the average success probabilities for dishonest agent eavesdropping encryption using the fake-signal attack with any two-particle entangled states.

关键词： quantum secret sharing security EPR pairs