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On Personal Communication

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The Journal of China Universities of posts and telecommunications 1995年第1期2卷 50-54页

作者： Zhou Jiongpan(Department of Information Engineering, beijing university of posts and telecommunications beijing 100088, P.R. China) Department of Information Engineering Beijing University of Posts and Telecommunications Beijing 100088 P. R. China

This paper first gives a definition for personal communication, then discusses some key problems to besolved in realizing PC and lastly gives some personal suggestions.

关键词： personal communication multi-access,satellite communication

A CONFIGURATION FOR REALIZATION OF THE MULTICHANNEL AND HIGH-ORDER IIR ADAPTIVE FILTERS

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Journal of Electronics(China) 1990年第1期7卷 45-53页

作者：杨大成王德隽 beijing university of posts and telecommunications Beijing

This paper develops a new hyperstable adaptive algorithm which can be used inthe multichannel ⅡR conflguration and/or the high-order ⅡR or zero-pole configuration for jointprocess estimation.

关键词： Filter IIR filter Adaptive filter

Threshold quantum secure direct communication without entanglement

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Science China(Physics,Mechanics & Astronomy) 2008年第2期51卷 176-183页

作者： YANG YuGuang1,3 & WEN QiaoYan2 1 College of Computer Science and Technology, beijing university of Technology, beijing 100022, China 2 School of Science, beijing university of posts and telecommunications, beijing 100876, China 3 State Key Laboratory of Information Security (Graduate School of Chinese Academy of Sciences), beijing 100049, China 1. College of Computer Science and Technology Beijing University of Technology Beijing 100022 China 3. State Key Laboratory of Information Security (Graduate School of Chinese Academy of Sciences) Beijing 100049 China 2. School of Science Beijing University of Posts and Telecommunications Beijing 100876 China

For the first time, a threshold quantum secure direct communication (TQSDC) scheme is presented. Similar to the classical Shamir's secret sharing scheme, the sender makes n shares, S1, …, Sn of secret key K and each receiver keeps a share secretly. If the sender wants to send a secret message M to the receivers, he en-codes the information of K and M on a single photon sequence and sends it to one of the receivers. According to the secret shares, the t receivers sequentially per-form the corresponding unitary operations on the single photon sequence and ob-tain the secret message M. The shared shares may be reusable if it can be judged that there is no eavesdropper in line. We discuss that our protocol is feasible with current technology.

关键词： quantum secure direct communication threshold secure direct communication quantum secret sharing

Macroscopic Transmission Diversity for CDMA Mobile Systems

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The Journal of China Universities of posts and telecommunications 2001年第4期8卷 51-56页

作者： PEI Xiao yan, HU Jian dong (beijing university of posts and telecommunications, beijing 100876, P.R. China) beijing university of posts and telecommunications Beijing 100876 P.R. China

A novel system of macroscopic diversity with voting rule in CDMA cellular systems is suggested in order to raise the coverage and quality of the service of CDMA mobile communication systems. The estimation of ... 详细信息

关键词： diversity probability cellular system microdiversity

An Analysis of Magnetic Field Environment Near High-Voltage Power Lines and Contact Wires of Electric Railways

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The Journal of China Universities of posts and telecommunications 2000年第Z1期 78-81页

作者： LI Li, GAO You-gang (beijing university of posts and telecommunications, beijing 100876, P.R. China)

Image method is used in this paper to calculate the value of magnetic field near high-voltage transmission lines and electric railways. Areas in which the magnetic field is less than 0.002 Gauss are given and the magn... 详细信息

关键词： High-voltage power transmission line electric railway electromagnetic calculation magnetic field

NOTE ON THE JOHNSON’S BOUNDS AND GRAHAM’S BOUNDS FOR CONSTANT WEIGHT CODES

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电子科学学刊(英文版) 1988年第3期5卷 239-240页

作者：杨义先 Department of Information Engineering beijing university of posts and telecommunications beijing

This paper presents four classes of codes which meet the Johnson’s upper bound and twoclasses of codes which have gone beyond the Graham’s lower bound.

关键词： Constant weight codes Block designs Hadamard matrix Johnson’s bounds Graham’s bounds

Simulation of moving boundary of the reaction shaft in a flash smelting furnace

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Journal of Central South university 2001年第3期13卷 213-218页

作者： CHEN Zhuo 1,MEI Chi 1,CHEN Hong-rong 1,MO Jiao 2 (1 Institute on Simulation and Optimization of Pyro-installation, Central Sout h university, Changsha 410083, China 2 Science School, beijing university of posts and telecommunications, beijing 1 1. Institute on Simulation and Optimization of Pyro-installation Central South University 410083 Changsha China 2. Science School Beijing University of Posts and Telecommunications 100876 Beijing China

As to solve the online monitoring of the inner temperatur e and freezing profile of the reaction shaft of flash smelting furnace, simulation of the wall in the reaction shaft in a flash smelting furnace was made through numerical computation. The computational results are very near the data got in s ite. The error of the moving boundary is approximately 3%, and that of the tempe rature is less than 5%. It is proved that the simulation software is applicable for practice to monitor the temperature and moving boundary inside the hearth on line. Based on a large number of the data computed, the relation between the cha nge of the moving boundary and inner temperature is summarized, and the great in fluence of the cooling system on the forming and stability of the moving boundar y inside the hearth is emphasized, which provide the theoretical bases for optim izing the flash smelting operation.

关键词： flash smelting furnace moving boundary numerical computation simulation

Investing and Pricing with Supply Uncertainty in Electricity Market:A General View Combining Wholesale and Retail Market

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China Communications 2015年第3期12卷 20-34页

作者： LI Xiaobo GAO Li WANG Gongpu GAO Feifei WU Qingwei beijing university of posts and telecommunications School of Digital Media and Design Arts Beijing University of Posts and Telecommunications School of Computer and Information Technology Beijing Jiaotong University Department of Automation Tsinghua UniversityState Key Lab of Intelligent Technologies and SystemsTsinghua National Laboratory for Information Science and Technology(TNList)

Renewable energy,such as wind and solar energy,may vary signifi cantly over time and locations depending on the weather and the climate *** leads to the supply uncertainty in the electricity(power) market with renewable energy integrated to power *** this paper,electricity in the market is classified into two types:stablesupply electricity(SSE) and unstablesupply electricity(USE).We investigate the investment and pricing strategies under the electricity supply uncertainty in wholesale and retail electricity *** particular,our model combines the wholesale and retail market and capture the dominant players,i.e.,consumers,power plant(power operator),and electricity *** derive the market behaviors of these players,we formulate the market decision problems as a multistage Stackelberg *** solving the game model,we obtain the optimal,with closedform,wholesale investment and retail pricing strategy for the *** also obtain the energy supplier's best price mechanism numerically under certain *** fi nd the price of SSE being about 1.4 times higher than that of USE will benefi t energy supplieroptimally,under which power plant's optimal strategy of investing is to purchase USE about 4.5 times much more than SSE.

关键词： electricity supply with uncertainty electricity investment electricity pricing wholesale market retail market Stackelberg game

Multi-layer network architecture in support of end-to-end transparent optical connectivities

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Science China(Information Sciences) 2011年第3期54卷 674-682页

作者： GUO HongXiang , WU Jian, HONG Xiao Bin & LIN Jin Tong Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, beijing university of posts and telecommunications, beijing 100876, China 1. Key Laboratory of Information Photonics and Optical Communications Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China

In order to effectively accommodate a wide variety of emerging and future applications with diverse requirements, an intelligent optical network capable of the rapid and resilient delivery of on-demand transparent transmission capacity is required. This paper investigates a multi-layer network architecture where a generalized multiple protocol label switching (GMPLS) controlled transparent wavelength switched optical network (WSON), as the transport core, collaborates with multiple client optical burst switching (OBS) networks distributed at the edge. Dynamic interworking mechanism as well as the related signaling/routing protocol ex- tensions for multi-QoS burst streams transmission among different OBS domains are proposed so as to provision an end-to-end (e2e) transparent optical connectivity with on-demand bandwidth to end-users. Moreover, the survivability of this transparent optical connectivity is also addressed. To validate the feasibility of this architecture, an integrated OBS/WSON network testbed was constructed, and stable e2e transparent connectivities were successfully demonstrated for an efficient multi-QoS burst streams transmission.

关键词： multi-layer network transparent optical network OBS WSON GMPLS