Most high bandwidth Internet access schemes fail at the point of connection to residences and businesses. 多数高带宽网络进入计划在与住所和企业的连接无法。
On the other hand, Passive Optical Network ( PON ) is characterized by its high bandwidth, full-service access, high efficient QoS mechanism, lower cost, but it is limited by its lack of mobility. 另一方面,无源光网络(PON)具备高带宽、低成本、全业务接入、高效QoS管理等优势,但缺乏可移动性。
Because of its high bandwidth and low cost, EPON becomes one of the best options for wired access. Because of its convenience of deployment and access, comparatively high bandwidth to other wireless access, WiMAX becomes one of the best options for wireless access. EPON系统由于其高带宽、低成本的优点成为有线接入的最佳选择之一,WiMAX系统由于其部署和接入的便捷性、相对其他无线接入较高的带宽成为无线接入的最佳选择之一。
In recent years, HD IPTV, VOD, 3D video 、 video conference, and other video applications develop rapidly. Various broadband services especially video business makes a extremely high request for bandwidth of user access. 近年来,高清IPTV、VOD、3D视频、视频会议等视频应用发展迅速。各种宽带业务尤其是视频业务,对用户接入带宽提出极高的要求。
According to the needs of business development and the Network transformation, optical fiber access net which requires High bandwidth, high anti-jamming, easy Expansion, long access distances etc. is the best choice. 根据业务发展和网络转型的需要,具有高带宽、抗干扰强、易拓展、接入距离长等特点光纤接入网络是当前必然的选择,光进铜退则成为固定网络发展的趋势。