基于Parlay Web Service的开放电信业务研究

针对下一代网络环境中开放电信业务面临的问题和发展趋势。介绍了基于Parlay Web Service的开放电信业务体系结构。详细分析了其基本问题、基本业务实现模式、系统结构、功能模型及商业模型。     

移动增值业务新发展刍议

国内电信业务运营收入陷入了一定的增长瓶颈,而移动增值业务的新发展则是突破瓶颈的关键点之一.电信运营商通过参考互联网企业百花齐放的业务创新点和通过用户培养迅速发展壮大业务并获得丰厚的回报,进一步秉承作为国家基础设施服务供应商持续服务普通大众和贡献社会的基本责任.移动增值业务通过在现有运营业务基础上发展新的模式,在短信、彩信、彩铃以及其他业务或平台上积极发展广告业务进行新的尝试,电信运营商将在新阶段获得跨越发展的新动能.     

基于Web Service光传输监控系统的应用

提出了一种基于分布式Web Service技术的光传输监控系统的应用。在该系统结构中,光传输设备分布在广大的区域内,各个局域网内的光传输系统所采用的通信标准、平台和技术的不同给系统集成带来很大的困难。基于这样的背景下,采用分布式Web Service技术,利用Web Service平台无关性、简单灵活性的优点解决了光传输系统的集成问题。     

一种区分服务模型及其在三层交换机的实现

服务质量（QoS）是用来定义网络给不同形式的流量提供不同级别的服务保障的能力.当前服务质量的体系结构和模型有多种,本文参照RFC2474、RFC2475 标准,提出了一种新的服务质量-区分服务（Diffserv）应用模型,该模型包括：流量的分类器、计量器、标记（或重标记）器、丢弃器和调度器等模块, 其中对于核心模块-调度器, 提出基于最大延迟的加权轮转调度（WRR-MBD）算法,同时给出区分服务模型在3 层以太网交换机的实现方法.通过网络测试分析仪对3 层交换机QoS 性能进行测试,得出在WRR 调度策略下,不同优先级数据包的丢失率基本按所设置的权重比例进行分配,从而避免了严格优先级（SP）调度存在的低优先级队列“饥饿”的现象.     

电信运营商服务营销渠道模式市场适应性研究

随着中国电信业的飞速发展,改革的深入和市场竞争的加剧,各电信运营商之间的竞争也从技术和价格的竞争转向了服务和营销渠道的竞争。根据电信运营商的服务和营销特点．分析了电信业营销渠道种类的细分,电信运营商可以参考的渠道选择维度,以及对于不同维度的渠道适应性原则。对电信运营商渠道的设计和建设具有可操作的指导意义。     

广西移动智能网业务发展分析

从广西智能网业务的市场需求和存在问题入手，介绍了广西智能网业务的定位，并对现有业务在智能网上与BOSS上开展进行了比较。     

A novel call admission control scheme in cellular/WLAN integration and performance analysis

In order to achieve the Quality of Service (QoS) provisioning and efficient resource utilization in cellular network and Wireless Local Area Network (WLAN) integration, an Integrated Service-Based Call Admission Control (ISB-CAC) scheme is proposed in this paper. The integrated network is modeled by using multi-dimensional Markov chains. The numerical analysis is presented to evaluate the important performance measures such as the blocking probability of originating calls, the dropping probability, and the average transfer time, etc. The steady-state probabilities of the multi-dimensional Markov chains are obtained by using an iterative approach, and the CAC parameters are optimally designed. The analytical model is validated by the computer simulation. It is shown that compared with the conventional WLAN-First Call Admission Control (WF-CAC) scheme, the proposed ISB-CAC scheme not only provides better QoS for mobile users but also utilizes the bandwidth resources more efficiently.     

Research advances on blockchain-as-a-service: architectures,applications and challenges

Due to the complexity of blockchain technology, it usually costs too much effort to build, maintain and monitor a blockchain system that supports a targeted application. To this end, the emerging “Blockchain as a Service” (BaaS) makes the blockchain and distributed ledgers more accessible, particularly for businesses, by reducing costs and overheads. BaaS combines the high computing power of cloud computing, the pervasiveness of IoT and the decentralization of blockchain, allowing people to build their own applications while ensuring the transparency and openness of the system. This paper surveys the research outputs of both academia and industry. First, it introduces the representative architectures of BaaS systems and then summarizes the research contributions of BaaS from the technologies for service provision, roles, container and virtualization, interfaces, customization and evaluation. The typical applications of BaaS in both academic and practical domains are also introduced. At present, the research on the blockchain is abundant, but research on BaaS is still in its infancy. Six challenges of BaaS are concluded in this paper for further study directions.     

一种基于多QoS注册中心和模型异构的WEB服务选择算法

多QoS注册中心并且QoS模型异构给服务选择带来巨大困难。借鉴多属性群决策(MAGDM)理论的基本思想,该文提出一种解决上述难题的多注册中心和模型异构的Web服务选择算法(MRHQ_WSSA)。MRHQ_ WSSA算法能综合评估各QoS注册中心的QoS信息,从而获得QoS综合最优的服务组合计划。MRHQ_WSSA算法包括5个步骤：用户偏好规格化、群偏好确定、加权规格化决策矩阵、确定群理想方案、计算群贴近度。最后通过实验验证算法的优势和有效性。     

第一代机顶盒的电子节目指南

电子节目指南是由业务商为用户提供的一项重要的服务,它负责电视节目和各种增值业务的导航.讨论了电子节目指南的生成、系统构成及其实现.