First Mile Access Networks and Enabling Technologies

Emergence of EPON—An Effective PON Solution, Particularly for IP-Centric Communication

The advent of data networking led to the emergence of a protocol that allowed computers to be linked and to “speak” using a universal and simple method. This method, Ethernet, was gradually incorporated into 95 percent of networks worldwide (initially by LANs but now by core networks, too).

SONET defines a standard for the transmission and multiplexing of data in the time domain through a network layer. SONET/SDH was created to cater to large volumes of voice traffic over circuit-switched networks and was standardized in the 1980s. SONET/SDH uses TDM and provides users a guaranteed level of service by assigning virtual channels within each frame. This guaranteed ...