Ethernet technology is used in the LAN to perform the functions of connection and transmission. The WiFi technology allows a radio access to the LAN. The WAN is built in three parts: the access network, the aggregation network and the core network. The access network implements xDSL and EFM technolo[...]
This book presents the architecture of the 4G mobile network that transfers the IP packets and of the IMS network that provides telephone services. The 4G mobile network description includes both the EPS architecture and the LTE radio interface.[...]