移动智能数据业务网络功能模型的研究与设计

知识经济使知识成为第一生产要素,人力资源会计对传统会计的资产内容、权益的确认及收益的分配、会计平衡公式等理论带来了巨大的冲击。人力资源会计的模式包括:人力资源成本会计、人力资源价值会计、人力资源权益会计。现阶段在我国逐步推行人力资源会计是可行的,但有许多迫切需要解决的问题。     

基于IP的3G服务质量控制及实现

第三代移动通信系统 (3G)的第二阶段是采用IP传送网 ,服务质量 (QoS)是极其重要的问题。在讨论基于IP的 3G中QoS体系结构、业务QoS要求基础上 ,重点研究QoS控制原理和区分服务的实现 ,并得出一些有参考价值的结论。     

ICT as a source of economic growth in the information age: Empirical evidence from the 1996-2005 period

This paper examines the hypothesis that ICT penetration has positive effects on economic growth. On theoretical grounds, this paper discusses three channels through which ICT penetration can affect growth: (i) fostering technology diffusion and innovation; (ii) enhancing the quality of decision-making by firms and households; and (iii) increasing demand and reducing production costs, which together raises the output level. This paper conducts three empirical exercises to provide a comprehensive documentation of the role of ICT as a source of growth in the 1996-2005 period. The first exercise shows that growth in 1996-2005 improved relative to the previous two decades and experienced a very significant structural change. The second exercise uses the traditional cross-country regression method to identify a strong association between ICT penetration and growth during 1996-2005, controlling for other potential growth drivers and country-fixed effects. The third exercise uses the system Generalized Method of Moment (GMM) for dynamic panel data analysis to tease out the causal link between ICT penetration and growth. This analysis also shows that, for the average country, the marginal effect of the penetration of internet users was larger than that of mobile phones, which in turn is larger than that of personal computers. The marginal effect of ICT penetration, however, lessens as the penetration increases. This paper points out several policy implications drawn from its analyses and findings.     

Churn analysis for an Iranian mobile operator

To survive in the challenging environment of a global market, organizations must recognize and analyze customer attitudes. To be competitive, organizations must recognize and forecast customer preferences and behaviors to maximize customer retention before their rivals do so. This research identifies factors that affect customer churn, the single most valuable of an organization's assets. One year's data from call log files relating to 3150 customers were selected randomly from an Iranian mobile operator call-center database. Binomial Logistic Regression was the method of analysis used in this research. The results of this research indicate that a customer's dissatisfaction, their amount of service usage and certain demographic characteristics have the most influence on their decision to remain or churn. The results also imply that customer status (active or inactive status) mediates the relationship between churn and the cause of churn. The Iranian government's current plan to privatize the telecommunications industry without deregulation leads to a non-square competition environment. Deregulation in favor of delegating more authorities of customer care is necessary in order to develop a square private competition environment in the Iranian mobile telecommunications industry.     

1xEV-DO系统数据流量研究

本文首先分析了 1xEV -DO前向业务信道的链路特性和今后将面临的新业务特性 ,然后着重对 1xEV -DO的无线资源分配和平均业务流量作了研究。     

车辆自动识别系统移动站及其在城市交通监管中的应用

车辆自动识别系统 (AVI)移动站具有机动、快速和自动识别车辆的特点 ,适合于在城市监管中广泛应用。它采用射频识别 (RFID)技术 ,通过车卡 (TAG)采集车辆数据信息 ,对车辆进行自动识别和处理 ,识别率超过 99%;采用视频识别 (VFID)技术 ,通过摄像机采集车辆图像信息 ,在光照较强的情况下 ,识别率可以达到 80 %以上。     

IP-RAN中一种新的移动性管理框架

RAN的全IP化是UMTS实现全IP架构过程的一部分。在RAN中,最重要的功能之一就是移动性管理。原有的基于ATM的移动性管理技术在全IP的RAN架构中并不适用。在分析全IP的RAN架构中对移动性管理的新的要求基础上,提出了结合MPLS技术和移动IP技术来解决移动性管理的新的开放的应用架构,并且描述了在这种应用架构下移动IP的协议过程;简要分析了这种应用架构带来的好处,提出还需要改进的地方和实现的技术难点。     

Market Power in Chinese Taipei: Laws, Policies and Treatments

The experience of Chinese Taipei shows that opening up a previously protected market to new entrants can be a more effective and reliable way to enhance competition than regulating the behavior of dominant or monopolistic firms. Moreover, when opening up the market, the liberalizing measures adopted by government should be market-structure-neutral. That is, it should not try to dictate the direction and results of market competition. A more pressure-resistant mechanism should be designed to deal with market power, taking the form of a regime that is cross-sector, independent and collective in its decision-making, such as has been the case with Chinese Taipei's Fair Trade Commission.     

移动通信无线覆盖均匀性分析

本文分析了移动通信系统中电波传播对覆盖均匀性的影响。通过典型路径传播损耗和移动通信系统同频干扰的分析，给出了衡量覆盖均匀性的性能指标。计算机模拟表明了覆盖均匀性与覆盖模式的关系。     

基于UWB技术的无线自组织网络研究综述

随着无线自组织技术的发展和UWB技术的逐渐成熟，无线通信界开始考虑将UWB技术应用于无线自组织网络中。由于UWB技术本身固有的优点可以显著提高无线自组织网络的网络性能，扩展无线自组织网络的应用范围。因此，研究采用UWB技术对无线自组织网协议带来的影响，就变得非常迫切而且很有意义了。本文在简单地介绍了UWB技术和自组网技术后，描述了它们结合后的应用前景，探讨了把它们结合后需要研究的若干关键技术。