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用户接入网的宽带化、数字化已迫在眉睫,也是通信下一步发展的关键。本文在技术经济分析的基础上对中国用户接入网的发展策略提出了一些建议。 相似文献
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广东省用户接入网的宽带化,数字化已成当之急,全面铺开全省用户接入网的建设也是电信市场竞争的需要:对接入网技术,设备选用提出了对策,强调光纤接入网是用户接入网发展的主要方向,广东省用户接入网的发展建设策略是着手制定发展规划及其建设和接入网光节点设计等工作,强调要因地制宜,有计划,有步骤地进行建设;最后提出建设目标和实施办法。 相似文献
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初具规模的中国电信网,实现了其骨干网和本地网传输,交换的数字化,但用户接入网仍以模拟铜线为主经传送媒体,成为现代电信网的瓶颈。这同国民经济发展,人们生活水平的提高,以及用户对各种通信业务不断增加的需求不相适应。因此接入网的数字化,宽带化和智能化,就成为当前中国电信网发展建设的重要任务。 相似文献
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用户接入网的宽带化、数字化已迫在眉睫,也是通信下一步发展的关键。本文在技术经济分析的基础上对中国用户接入网的发展策略提出了一些建议。 相似文献
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随着接入网的出现,使整个电信网络的结构更加合理,网络资源的利用更加充分。同时随着IP等宽带业务的出现,传统的电信接入网也正向着数字化、综合化、宽带化的方向转变,因此接入网的发展目标是建立一个全业务接入网,真正在接入层首先实现多网的融台。港湾网络IONE新一代综合业务接入网产品正是适应这种需求.提出了对于新建网络应该“立足现在、放眼未来”,为充分保护运营商的投资而设计。 相似文献
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为使电信网能够开展数字化,宽带化,智能化及个人化业务,要求加快接入网的发展和建设;根据邮电部批准接入网设备进网试用应依据实际情况选择试用的精神,对我省可试用的华为,中兴和UT-STARCOM等3家厂商的接入产品列表进行比较。 相似文献
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在对目前我国通信行业主管部门对城域传送网和宽带接入网管理现状分析的基础上,分析了我国城域传送网和宽带接入网发展现状,讨论了山西移动城域传送网和宽带接入网的健康发展策略。 相似文献
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Advances in networking and hardware are motivating the development of high bandwidth local access networks that connect subscriber communities to the Information Superhighway. Hybrid fiber-coaxial (HFC) technology is emerging as one of the few economical viable technologies for designing new local access networks. These HFC local access networks are expected to support a variety of services in different spheres in an integrated manner, by drawing upon diverse technologies from the cable, computer, and telecommunications industries: the tree-and-branch network topology is typical of the cable network; intelligence in the end devices is a characteristic of the computer industry; and addressability, global interconnectivity, and quality of service (QoS) are characteristic of the telecommunications industry. It is this combination of diverse services and technologies that poses fundamental challenges in architecting a management system for HFC networks. The design of a management framework for HFC access networks is discussed 相似文献
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介绍了用户接入网的发展, 光纤用户接入设备的组成和功能, 光纤用户接入设备与交换机远端用户模块、用户数字环路设备的比较,以及光纤用户设备引入对本地网建设的影响。 相似文献
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新世纪国际通信信息技术将发生巨大变革,其发展的主要趋势是宽带化,综合化、分布化、大众化和个人化,未来的通信信息网络结构将由于线同多/本地网的结构模式转变干线网/接入网,接入网的变革是关键。 相似文献
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这里深入探讨的4个问题是从分析广播电视网络自身发展、三网融合、"十二五"规划、电力智能网和全国广播电视网络整合的新形式、新情况出发,提出广电网络双向化改造势在必行的问题,得出接入网又是改造的重中之重,进而分析难以取舍的广电接入网三大改造技术(CMTS+CM、EPON+LAN、EPON+EoC)各自的优点和缺点,最后介绍当地网络双向化改造的做法:因地制宜,适合就行,不等不靠,快字当先。 相似文献
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Andrej Mihailovic Apostolos Kousaridas Alexandre Jaron Paul Pangalos Nancy Alonistioti Hamid A. Aghvami 《Wireless Personal Communications》2013,72(1):343-374
A key challenge for the management systems of future networks is the reduction of human interventions in the fundamental management functions. These include mechanisms that render the networks capable to configure, optimize, heal and protect itself, but also handle the emerging complexity. Demands for the future internet networks mandate the rapid assessment of the feasibility of such cognitive management architectures that shall bridge the gap between conceptual design and practical network deployments. In this paper, a novel architecture is introduced, based on organized distribution of control feedback cycles at locations allocated across network’s operational elements. Two realisations of self-management in the operations of wired and wireless access network segments are presented. The first one is focused on organization of the wireless access regions in networks by the use of compartments of access points for enabling coverage optimization. A compartment-based approach facilitates the more efficient usage of network resources, exploiting local situation awareness and local optimisation features, according to the varying traffic needs. The second realization shows the control of mobility management processes in wired parts of access networks for balancing utilization of network resources. A dynamic deployment and re-configuration of mobility agents permit to tackle the problem of congestion induced by mobility agents in mobile protocols and combined with a dynamic access router assignment, network resources are efficiently balanced within the network. The paper concludes with findings and recommendations on how common principles of self-management evolve from design theory to practice. 相似文献
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随着Web2.0的迅速发展,社交网络规模变得越来越庞大,包含的信息量也越来越多。传统的从全局角度出发进行社团挖掘的算法由于较高的复杂度以及获取全网信息的困难度,不适用于大型复杂网络的社团挖掘。文中提出了一种基于节点相似度和局部中心点的社团挖掘算法,实验结果表明,该算法在保证较高准确度的同时具有线性时间复杂度。 相似文献