Performance analysis in 3G/ad hoc integrated network

An analytical approach to evaluate the performance of the 3G/ad hoc integrated network is presented. A channel model capturing both path loss and shadowing is applied to the analysis so as to characterize power falloff vs. distance. The 3G/ad hoc integrated network scenario model is introduced briefly. Based on this model, several performances of the 3G/ ad hoc integrated network in terms of outage probability, call dropping probability and new call blocking probability are evaluated. The corresponding performance formulae are deduced in accordance with the analytical models. Meanwhile, the formula of the 3G/ad hoc integrated network capacity is deduced on the basis of the formula of the outage probability. It is observed from extensive simulation and numerical analysis that the 3G/ad hoc integrated network remarkably outperforms the 3G network with regards to the network performance. This derived evaluation approach can be applied into planning and optimization of the 3G/ad hoc network.

Design of an Interconnection Architecture and Sizing of Two (2) EPC Core Networks: The Case of Orange-Guinea

With the arrival of the 4G and 5G,the telecommunications networks have experienced a large expansion of these networks.That enabled the integration of many services and adequate flow,thus enabling the operators to respond to the growing demand of users.This rapid evolution has given the operators to adapt,their methods to the new technologies that increase.This complexity becomes more important,when these networks include several technologies to access different from the heterogeneous network like in the 4G network.The dimensional new challenges tell the application and the considerable increase in demand for services and the compatibility with existing networks,the management of mobility intercellular of users and it offers a better quality of services.Thus,the proposed solution to meet these new requirements is the sizing of the EPC(Evolved Packet Core)core network to support the 5G access network.For the case of Orange Guinea,this involves setting up an architecture for interconnecting the core networks of Sonfonia and Camayenne.The objectives of our work are of two orders:(1)to propose these solutions and recommendations for the heart network EPC sizing and the deployment to be adopted;(2)supply and architectural interconnection in the heart network EPC and an existing heart network.In our work,the model of traffic in communication that we use to calculate the traffic generated with each technology has link in the network of the heart.

Evolution of Optical Transport Networks and Their Solution in 3G Networks

As new generation mobile networks, 3G networks focus on data services and integrate voice, data and multimedia services. However, traditional Optical Transport Networks (OTNs) cannot meet the requirements of 3G networks anymore, because of their complicated configuration, low bandwidth efficiency, high cost, and bad network and service scalability. The emerging of Multi-Service Transport Platform (MSTP), Wavelength Division Multiplexing (WDM), and Automatically Switched Optical Network (ASON) technologies for optical fiber communications makes up for these weaknesses. The leading solution to 3G access transport networks is the MSTP technology based on Synchronous Digital Hierarchy (SDH), while that to 3G core transport network is ASON+WDM.

A Stream Control Transmission Protocol Based OAM System of 3G Cellular Network

OAM (Operations, Administration and Maintenance) system is a very impo rtant component of 3G cellular network. In order to acquire overall managemen t, fast response and steady operation, an SCTP (Stream Control Transmission Prot ocol) based OAM, i.e., SOAM system was proposed. SOAM implements new characters of SCTP such as multi-stream, enforced SACK and heartbeat mechanism on its tran sport layer. These characters help SOAM decrease the message transmission delay and accelerate the link failure detection. Besides, a new component named SOAM agent was introduced to improve the operation efficiency of SOAM. The experim ental results prove the proposed SOAM system achieves better performance on sign aling transmission compared with conventional TCP based OAM system.

Zapp Selects ZTE to Build 3G Network in Romania

ZTE, a leading global provide of telecommunications equipment and network sulutions, announced on May 29, 2008 that it has been selected by Zapp, Romania’s fourth largest mobile operator, to roll-out a WCDMA/HSDPA commercial network. This deal reinforces ZTE position in Europe. Zapp plans on launching its 3G commercial services in early autumn 2008 and the network should be completed by 2011.

Key Technologies of 3G WCDMA Network Sharing

Based on the latest research findings of 3GPP on network sharing, this paper introduces 4 solutions to WCDMA 3G network sharing: site sharing, common network sharing, geographically split network sharing, and radio access network sharing. It also analyzes the key network sharing technologies, including the lu-Flex function in Release 5, the UTRAN sharing mechanism in the connected mode in Release 5 and the mechanism of network sharing support enhancement in Release 6.

Construction Control and Monitoring of Large Span Continuous Steel Arch Bridge Based on 3G Network

This paper takes the right branch main channel Bridge of Huai River Bridge in Huainan as the engineering background, uses the finite element software Midas and the ANSYS to simulate and analyze the jacking construction of the bridge, and according to the theoretical calculation, the construction monitoring plan is developed, and the stress and deformation of the key section and part of the structure are monitored. Construction monitoring combined with 3 g network and data acquisition module, monitoring data for the real time measurement, the centralized acquisition and wireless transmission, accomplish on-line real-time monitoring of the bridge construction process, effective control of jacking construction and monitoring. The comparison between theoretical analysis and measured results shows that the simulation results are reasonable, and the construction monitoring scheme based on 3G network and data collection can be used as reference.

ZTE F3G SOLUTIONS GIVE YOU A FULL-SERVICE NETWORK AT A QUICK BREAK-EVEN.

When upgrading your network, you should consider ZTE F3G solutions.You get a total solution for Triple-play that increases your revenue dramatically, and you could cut your break-even time by 50%.

ZTE F3G SOLUTIONS GIVE YOU A FULL-SERVICE NETWORK AT A QUICK BREAK-EVEN.

When upgrading your network,you should consider ZTE F3G solutions.You get a total solution for Triple-play that increases your revenue dramatically,and you could cut your break-even time by 50%.

ZTE F3G SOLUTIONS GIVE YOU A FULL-SERVICE NETWORK AT A QUICK BREAK-EVEN

When upgrading your network, you should consider ZTE F3G solutions.You get a total solution tor Triple-play that increases your revenue dramatically,

基于3G网络的分布式粉尘监测系统

为解决传统粉尘监测设备的监测点少、维护成本高等问题,基于3G网络,提出一种分布式粉尘浓度监测系统。采用依据微电荷监测原理实现的粉尘检测器作为前端探头,将被测区域内的粉尘量转化为4 m A^20 m A的电流信号。通过高精度模数转换器将电流信号转换成数字信号,再利用现场可编程门阵列模块将采集的粉尘浓度值、继电器开关信号等数据组成协议帧,通过3G网络将数据传送至数据中心。应用结果表明,该系统能够实现粉尘浓度实时显示、采集数据保存及历史数据回放功能,具有监测精度高、维护成本低、操作安全等特点。

3G无线网络在医院中的应用研究

探讨医院3G无线网络的应用。比较现有无线网络的组网方式、应用案例开展医院无线网应用方案研究。通过应用电信3G技术组建医院无线局域网,能快速组建医院无线局域网。医院应用3G技术组建医院无线网络能充分利用公共通讯网络资源,有效节约医院投入,实现医院无线临床信息系统的应用。

基于ZigBee和3G的多污水处理厂监控系统设计

为了实现快速准确地采集多污水泵站和处理厂信息,提出了基于ZigBee和3G技术的远程多污水处理厂协同监控系统.该系统主要由污水处理厂信息监测网络节点、嵌入式ARM+DSP开发模块3、G/GPRS传输网络与Internet网络、远程服务器控制中心端组成.在污水处理厂现场,使用传感器节点采集各种所需信息,通过ZigBee无线传感网将各种信息上传到上位机,然后上位机通过网关节点集成移动通讯网络,利用3G/GPRS网络实现与Internet的信息交互,完成多泵站和污水处理厂数据的自动采集、无线传输以及Web方式下的参数远程设置和信息实时监测.采用该系统后,污水处理厂的污水处理量最少增加了5.2%,千吨水电耗最少下降了5.4%,剩余污泥量也均比采用前有明显的下降.

3G网络和无线局域网混合认证服务机制

随着无线局域网技术的飞速发展和广泛应用,无线网络环境下的安全问题越来越受到关注。无线信号容易遭到窃听、拦截及其他通信干扰,因此,需要一定的安全机制实现数据保密、身份认证以及数据完整性保护。文章在分析第3代移动通信系统与无线局域网络的相关身份认证机制及相关安全性能的基础上,针对两者认证机制的优缺点提出了一种3 G网络和无线局域网的混合认证服务机制,并给出了该机制的详细设计及简要分析。

高校3G网络文化建设探究

随着3G在高校校园应用,高校3G网络文化建设成为必须。与传统高校网络文化相比,高校3G网络文化有独特的自身特征和功能。高校3G网络文化建设要从精神文化入手,确立社会主义核心价值体系的主导地位,同时,要积极发挥制度的规范性和高校师生的主体性。

3G音频传输在电台户外直播中的应用

传统直播间广播模式已经越来越无法满足节目的需要,更灵活更便捷的移动直播方式是当前的主流需求。根据自身情况,结合当前3G移动互联网逐步普及的形势,针对广播节目传输方式进行了新的研究和尝试。在直播分现场通过3G网络把音频信号高质量、高稳定性地回传至直播间,有3G手机信号即可轻松实现节目的户外直播。同时由于3G网络带宽高、速率快,完全可以使现场直播的主持人和听众充分利用直播间内的相关资源,包括热线电话、短信、即时通讯工具,随时与直播室内的嘉宾进行交流。该种传输方式,并不局限于使用3G网络,可以使用多种网络环境接入,包括ADSL、ISDN、光纤宽带等,并可为未来的LTE高速网络、4G网络所支持,便于未来升级扩展。

省级BDS-3基准站网改造与观测数据质量评价

为了全面分析和评价BDS-3改造后的省级基准站网观测数据质量,弥补现有利用TEQC软件进行数据分析的不足,更好地提供基准站网基本数据产品和服务,本文阐述了省级北斗基准站网的BDS-3改造情况和基准站的观测数据质量要求,利用G-Nut/Anubis软件分析北斗基准站网全星座、全频率数据质量指标。结果表明,福建省卫星导航定位基准服务系统整体数据质量较好,符合卫星导航定位基准站网基本数据产品和服务规范的要求,保障了其在重点区域数据的战略应用。