Wireless-Optical Network Convergence: Enabling the 5G Architecture to Support Operational and End-User Services

Content placement in 5G‐enabled edge/core data center networks resilient to link cut attacks

“…Due to the higher scale and efficiency of cDCs their cost per unit of processing/storage tends to be lower than that of eDCs. The price difference is mainly attributed to higher energy efficiency of cDCs and lower operational costs. Therefore, it is expected that the cost of hosting a content replica in an eDC is substantially higher than hosting the same replica in a cDC.…”

“…The introduction of edge computing has the potential to help satisfy the stringent 5G performance requirements, but poses new challenges to the infrastructure providers. For instance, the smaller scale of edge data centers (eDCs) leads to higher costs per unit of storage due to inefficiencies that arise from cooling and/or lower degree of resource sharing . Therefore, CDNs use a hierarchical, two‐tier approach to cost‐efficiently cope with the application requirements.…”

Optical Transport Networks for 5G: An enabler for vertical industries

“…In this context, Cloud-Radio Access Networks (C-RANs) have been recently proposed as a key concept to address the inefficiencies of traditional RAN systems and support services requiring very low latency, high reliability, density and mobility. In C-RAN, Remote Units (RUs), are connected to the Central Unit (CU) where the Baseband Unit (BBU) pool is located through high bandwidth transport links, transmitting I/Q streams, known as fronthaul (FH) [1]. Through its pooling and coordination gains, C-RAN addresses the increased capital and operational costs, as well as the limited scalability and flexibility of traditional RAN.…”

“…However, this transformation will require new service capabilities that network operators need to support including: i) connectivity for a growing number of very diverse devices, ii) ubiquitous access with varying degrees of mobility from low to high in heterogeneous environments and, iii) mission critical services currently handled by closed specific purpose networks [1]. These demanding and diverse requirements cannot be supported by current 4G solutions and best effort internet connections or a smooth migration from existing network architectures and technology deployments to next generation solutions.…”

General Multimedia Trust Authentication Framework for 5G Networks

“…Compared with its precedent wireless communication standards (i.e., 1G, 2G, 3G, and 4G networks), the 5G system is proposed to support wider range of connected devices types and various service applications [1,2]. It is estimated that the 5G would become the ubiquitous information infrastructure network in the near future [3].…”