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。
With its feature of high bandwidth , low cost , and being used and updated easily , epon is one of the best solutions to broadband access network Epon综合了pon技术和以太网技术的优点,以其高带宽、低成本、易使用、易升级的优良特性成为光接入网的最佳选择。
Aiming at this issue , on the base of an in - depth study on existing mac protocols , this thesis exploringly researched on mac protocols in w - ocdma access network 本论文针对上述问题,在深入分析了现有的mac协议的基础上,对w - ocdma接入网的mac协议作了探索性研究。
So that , the access net technology and development come in for large attention everywhere , especially larger city access net building already active in progress 所以，接入网的技术及其发展受到了各地较大的关注，特别是大城市接入网的建设已经在积极进行之中。
The requirements for new access network technology are not only the provision of broadband services but also reliability as a social information infrastructure 对新型接入网的需求不仅是提供宽带接入的需要，而且也是建设可靠的社会信息基础设施sii ( socialinformationinfrastructure )的需要。
Fast ethernet optical & electronic media converters , which can update the network while being compatible with existing copper cable resources , therefore become popular in the market today 快速以太网光纤收发器既能便于用户接入网的升级，又可以保护原有的铜缆投资，成为当前市场的迫切需要。
It combines the advantage of pon technology and ethernet technology . with its feature of high bandwidth , low cost and being used and updated easily . epon is the best solution for access network 并综合了pon技术和以太网技术二者的优点,以其高带宽、低成本、易使用、易升级的优良特性成为光接入网的最佳选择。
It combines the advantage of pon technology and ethernet technology . with its features of high bandwidth , low cost and being used and updated easily . epon is the best solution for access network 它综合了pon技术和以太网技术二者的优点,以其高带宽、低成本、易使用、易升级的优良特性成为光接入网的最佳选择。
Gpon , as a advanced broad band access network technology , is a solution for breaking the bottleneck of network band of access network . and it is a better choice of broad band access network for future Gpon作为一种先进的宽带光接入网技术,它为打破接入网段的网络带宽瓶颈提供了解决方案,是今后宽带接入网的较好选择。
As the communicational technology development , the transmit ability of main meshwork has been improved very much ; compared with that , the transmitting speed of the access net has been a bottleneck all along 随着通信技术的不但发展，骨干网的传输速度已经得到了很大提高；相比之下，接入网的传输速率却始终是个瓶颈。
