With establishing and using of board - band and board - band access network , the application of vod based ip is increasingly widespread 随着ip宽带网和宽带接入网的投入和使用，基于ip的vod应用越来越广泛。
It is the joint between the backbone network and the access network , and it is the aggregation point for the subscriber traffic Bras位于核心网与接入网的交界处,是所有用户接入的汇聚点和集中控制点。
After we introduced the genetic algorithm ( ga ) , we focus on how to use ga to implement the toplogical optimization of poan 在寻找问题的答案时，我们决定采用遗传算法。本文重点对无源光接入网的优化规划进行了详细的探讨。
Cost of operation , administration and maintenance ( oam ) increases sharply . the management of hfc network is more and more important 随着hfc接入网的用户和增值业务日益增多, hfc接入网的管理成为hfc网络运营的越来越重要的一部分。
Passive optical network ( pon ) and active optical network ( aon ) are two kinds of technologies that can be used to construct the optical access network 当前用于实现光接入网的技术主要有两种：无源光网络技术pon和有源光网络技术aon 。
This chip is accord with the standard of 802 . 3ah , and provide different interface . the system can resolve the requirement of the access network 该芯片符合802 . 3ah标准并且提供了多种接口,使得开发出的系统能很好的解决目前接入网的需求。
Some foreign companies such as cisco have completed this technology . now , those key equipments and technology applied in china is still come from foreign companies 我国宽带接入网的基础建设已基本完成，但是核心设备和相关技术仍然来自国外厂商。
In the course of the data transmission in the access network , the access network must achieve synchronization in order to transmit datum accurately 在接入网的数字传输中，为了能使数据准确无误的进行传输，前提就是要求接入网的各部分能够完成同步。
With the rapid development of information technology ( it ) , especially the universal application of internet , broadband access networks ( an ) become more and more prevalent 信息产业的飞速发展，尤其是因特网的普遍应用，使宽带化成为接入网的发展趋势。
Ftth is the development aim of access network . but because of cost , market , customers " requirement and other reasons , ftth is still a long - time task Ftth是接入网的长期发展目标，但由于成本、用户需求和市场等各方面的原因， ftth仍然是一个长期任务。
