IPv6技术及其在移动互联网中的应用

本文介绍了IPv6技术的特点,结合移动互联网的实际情况对IPv6技术在移动互联网中的应用进行了探讨,最后提出了移动互联网向IPv6演进的目标结构,以及各演进阶段引入IPv6的策略.     

移动IPv6技术在3G系统应用前景

文章通过分析移动IPv6技术的工作原理,与IPv4技术的比较以及移动IPv6的安全性等内容,展现了移动IPv6技术的优势;重点阐述了移动IPv6技术在未来3G核心网中的应用,体现了移动IPv6技术在下一代移动通信中的重要性。     

移动通信中的IPv6技术

本文针对移动通信业务的飞速发展与当前使用的互联网通信协议IPv4的不足,结合下一代互联网通信协议IPv6自身在移动性、安全性和QoS控制等方面的特征,讨论了移动IPv6应用前景。并且通过一个具体的方案实施,较为详细地介绍了移动IPv6的工作原理和基于移动IPv6的主机漫游技术。     

移动通信中的IPv6技术

本针对移动通信业务的飞速发展与当前使用的互联网通信协议IPv4的不中，结合下一代互联网通信协议IPv6自身在移动性、安全性和QoS控制等方面的特征，讨论了移动IPv6应用前景。并且通过一个具体的方案实施，较为详细地介绍了移动IPv6的工作原理和基于移动IPv6的主机漫游技术。     

移动IPv6技术在下一代互联网的应用探讨

本文在下一代互联网的基础上,分析了移动IPv6技术的一些基本概念和发展。通过对移动IPv6~作原理以及其优势的研究,指出了移动用户不需要固定的IP地址,只需在终端采用移动IPv6技术就可以随时随地的获取需要的数据。最后通过移动IPv6在无线局域网和4G移动通信网中的应用探讨,研究认为移动IPv6技术的进一步发展和应用将会给移动用户带来更多方便。     

大力发展基于IPv6的物联网 推动和促进IPv6技术走向成熟

移动互联网、物联网的发展催生了网络对IPv6的需求,面对IPv6技术的机遇和挑战,中国移动从推进IPv6现网落地到增强IPv6自主创新等方面进行了大量技术研究、网络建设和实验工作。务实而有效的IPv6工作将为我国IPv6网络发展铺平道路。     

浅析IPv6技术及其在移动互联网中的应用

随着科学技术的高速飞跃,计算机在全球众多行业中得到了广泛的推广,促进了Internet的飞速发展。从客观的角度来分析,现阶段的移动互联网在很大程度上,成为了决定社会发展水平和行业发展水平的重要因素。我国作为一个发展中国家,必须在未来的建设中,不断加强移动互联网方面的各项工作,在客观上和主观上完成工作水平的提升和技术的进步。纵观多项计算机技术,IPv6技术是目前研究较多的一项计算机技术,该技术在客观上拥有较为广阔的发展空间,同时能够对我国的移动互联网发展,产生较大的积极作用。未来,我们需要进一步加强IPv6技术在移动互联网中的应用,以此来巩固我国的经济地位。     

基于IPv6的BGP/MPLS VPN的移动性研究

随着下一代互联网技术和应用的发展,未来网络中的移动节点将日益增加,IPv6技术可以良好地支持移动性,对移动性的支持也已经成为各种应用协议必要的扩展.本文在探讨BGP/MPLS VPN基本原理的基础上,针对未来网络的发展趋势和现有理论的不足,对基于IPv6的BGP/MPLS VPN的移动性问题进行了研究,并且提出了解决方案.     

移动互联网的关键技术──IPv6

移动互联网是因特网发展的一种趋势。IPv4已不能满足互联网发展的需要,而新一代的IPv6为移动互联网提供了保障。本文在分析了移动IP的基本原理后,具体论述了IPv6对移动性的支持,并通过与IPv4的比较,突出IPv6的特点和优势。     

浅析移动IPv6的Child-proof认证

未来五年我国将需要海量的IP地址,移动互联网需求量为10亿,物联网预计需求量为100亿,IP地址需求总量高达345亿。加快IPv6推广应用步伐是下一代互联网发展亟待解决问题,与之俱来的移动IPv6的安全问题也就越来越重要,本文讨论移动IPv6的Child-proof认证(CAM),旨在为保证移动IPv6的安全奠定基础。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks