软交换技术在电力通信网中的应用

文中主要阐述了软交换技术的基本概念和以软交换为核心的网络结构,给出了软交换在云浮局电力通信网的应用实例,对软交换技术在电力通信系统中的应用前景进行了分析。     

软交换及其在电力通信网中的应用

软交换技术是一个能够提供下一代分组通信--包括语音、宽带和无线网络的平台.文中对现有软交换解决方案与传统的四、五类交换的各方面进行了详细的比较,并介绍了它在电力系统通信网中的应用情况.     

软交换技术在电力通信网中的应用

软交换技术的出现一方面造就了网络的融合，另一方面软交换采用了开放式应用程序接口（API），方便了第三方位应用的开发和新业务的引进，论文主要从软交换提出的必然性，软交换的概念和主要功能，基于软交换的增强型业务框架以及其各层间的协议等方面对软交换技术进行了论述，并对软交换技术在电力通信网中的应用前景作了介绍。     

软交换技术在移动通信网中的应用

移动通信业务高速发展的今天,随着新业务需求的复杂、多变,多种业务的结合和交织更要求能有一套灵活的支撑系统。基于移动软交换网络以其建网成本低,易升级,便于加快新业务和新应用的开发、生成和部署,快速实现低成本广域业务覆盖,推进话音和数据的融合等优点,使其成为下一代网络技术的核心。     

探讨软交换技术在电力通信网中的应用

近年来,随着科学技术条件的成熟和网络的融合,我国的电力通信网发展势头迅猛。软交换技术是下一代网络的核心技术,对于增强电力通信网运行的可靠性、安全性和稳定性具有重要的现实意义,由此可见,在电力通信网中引入软交换技术是可行的,也是必要的。文章主要探讨了软交换技术在电力通信网中的应用。     

软交换技术及其在电力通信网中的应用

软交换技术是从媒体网关中把呼叫控制功能分离出来,通过服务器上的软件实现基本呼叫控制功能,是传统电信技术与IP技术的有机结合和优势互补。文章介绍了软交换网络的层次结构及主要功能,分析了在电力通信网引入软交换的意义,并说明了软交换系统的部署。     

简析软交换技术在移动通信网中的应用

软交换技术应用到移动通信网络中,不仅能搞提高网络的安全性、容量等,还可以有效的控制运营成本,简化网络结构。本文介绍了软交换技术应用到移动通信网中的优点,阐述了软交换技术应用到移动核心网中的情况。     

软交换技术在铁路通信网中的应用研究

随着科学技术的不断进步,软交换技术越来越多的被应用在生活之中,比如:通信网中轻松整合电路交换和分组交换、降低网络成本以便运营商更快获得收入.本文就现有的铁路网中交换技术及设备成熟度、现有交换技术的业务状况和存在问题进行分析,论述电话交换网的必要性,同时就现有问题提出对应的改进建议.     

软交换技术在移动通信网的应用

介绍移动软交换的主要特点及软交换在移动通信网中的应用,探讨移动核心网的演进方式.     

软交换技术在电力通信网中的运用分析

随着我国科学技术水平的不断提升,软交换技术得以发展,并在电力通信网中有一定程度的应用。网络融合的趋势势不可挡,以软交换技术为核心,对电力通信网络运行产生影响。软交换网络技术在安徽省电力公司滁州供电公司有应用,并充分发挥作用,有利于推动电力通信网的可持续发展。本文主要论述了软交换网络的构成及其在电力通信网中的应用。     

A comparative study of wireless communication network configurations for medical applications

A comparative study of the performance characteristics of five multiple access configurations for a wireless communication network is presented and evaluated within the context of the medical field of application. A universal variable has been defined for comparison between the alternative configurations, embodying the data rate, number of channels, power consumption, and bandwidth requirements. Special medical specifications have been accommodated, while the broader applications of this approach have been addressed. CDMA is indicated as the preferred method, over ALOHA, slotted ALOHA, CSMA, and polling.     

Low-energy wireless communication network design

Energy-efficient wireless communication network design is an important and challenging problem. Its difficulty lies in the fact that the overall performance depends, in a coupled way, on the following subsystems: antenna, power amplifier, modulation, error control coding, and network protocols. In addition, given an energy constraint, improved operation of one of the aforementioned subsystems may not yield better overall performance. Thus, to optimize performance one must account for the coupling among the above subsystems and simultaneously optimize their operation under an energy constraint. In this article we present a generic integrated design methodology that is suitable for many kinds of mobile systems and achieves global optimization under an energy constraint. By pointing out some important connections among different layers in the design procedure, we explain why our integrated design methodology is better than traditional design methodologies. We present numerical results of the application of our design methodology to a situational awareness scenario in a mobile wireless network with different mobility models. These results illustrate the improvement in performance that our integrated design methodology achieves over traditional design methodologies, and the tradeoff between energy consumption and performance.     

关于配网通信中无线通信技术的探讨研究

本文介绍了配网自动化的信息,还解析了现阶段使用的配网通信技术的优点以及缺点等一系列问题,并根据实际需要进行了比较,最终还将配网通信中的无线通信技术进行细致地讨论.     

Binary linear multicast network coding on acyclic networks: principles and applications in wireless communication networks

Conventional linear multicast can be constructed on any acyclic network by increasing the order of the finite field to a sufficiently large amount over which the multicast is defined. In this paper, we first discuss the reciprocal theorem of the conventional linear multicast and design a linear multicast on any give acyclic network with constant finite field by extending the multicast dimension and relaxing the constraint on the information storage. In particular, we propose the binary linear multicast network coding and the linear multicast with binary coefficients. With the proposed method, the computation complexity for network coding at the intermediate nodes can be significantly reduced; therefore cheap network nodes can be deployed in a large scale due to their low cost for wireless communications. In addition, some applications of the proposed binary linear multicast network coding in wireless communication networks are illustrated and validated.     

虚拟化移动核心网任务调度算法研究

针对虚拟化移动核心网的任务调度问题进行研究。Min-Min调度算法是一个简单、快速、有效的算法,但是它很难满足移动用户对服务质量的要求。提出一种基于虚拟机响应时间的改进算法。在虚拟机与元任务映射过程中,首先按照Min-Min算法进行匹配,然后计算每个与元任务匹配的虚拟机的响应时间,将任务划分为满足响应时限和不满足两部分,对满足响应时限的任务进行调度,为不满足调度响应时限的任务重新分配一个空闲的虚拟机中执行时间最短的虚拟机,尽最大可能避免任务执行时间超出响应时限,导致任务调度失败,进而影响用户满意度。在虚拟机和元任务一定的情况下,分别仿真这两种算法的调度过程,得到任务完成时间、任务成功率和负载情况图,对仿真实验结果进行对比分析。     

A network selection scheme for multicast applications in wireless network convergence

In wireless network convergence, each mobile host is expected to have multiple kinds of wireless interfaces. Multicast‐based applications are expected to be widely deployed. In this paper, a new network selection scheme is proposed for a mobile host to select the most appropriate wireless access network to maximize user satisfaction and ISP's profit, simultaneously. We have devised a metric to measure a user's satisfaction and we also developed a ‘normalized network resource’ metric for system profit measure. We have compared our scheme with three other reference schemes, through simulations. Depending on the network deployment situations, our scheme exhibits one‐fifth service disruption time of other reference schemes, while the resource consumption of our scheme is comparable to that of the minimum resource scheme. Overall, the gain of our scheme becomes higher as users move faster and/or the population density increases. Copyright © 2010 John Wiley & Sons, Ltd.     

无线网络信号监测中计算机通信的实现研究

小传统的信息传送过程中存在着一些弊端,主要表现为数据的监测性不强、信号不稳定、安全性得不到保障等等。针对以上情况,文章以无线网络信号检测概念作为切入点,对计算机通讯的实现进行探究。     

Dynamic energy-efficient resource allocation in wireless powered communication network

Wireless Networks - In this paper, we investigate the dynamic energy-efficient resource allocation and analyze delay in newly emerging wireless powered communication network (WPCN). Considering the...     

决定第四代移动通信(4G)的关键技术

简要介绍了第四代移动通信系统的概念,详细讨论了4G的关键技术。     

海上大型编队无线通信网络研究

针对中国海军海上大型编队发展趋势以及编队通信需求,在研究认知无线电Ad H..技术的基础上,构建了基于认知无线电和Ad Hoc网络技术的海上大型编队无线通信网络,分析了其网络框架、频率分配以及频谱检测策略.研究结果表明,论文构建的海上大型编队无线通信网络能够有效解决海上大型编队通信存在的空间范围大、外界干扰多、电磁环境变化快、平台机动性强等问题,具有较好的理论研究价值和军事应用前景.