TelcoFog: A Unified Flexible Fog and Cloud Computing Architecture for 5G Networks

We propose the TelcoFog architecture as a novel, secure, highly distributed, and ultra-dense fog computing infrastructure, which can be allocated at the extreme edge of a wired/wireless network for a telecom operator to provide multiple unified, cost-effective, and new 5G services, such as NFV, MEC, and services for third parties (e. g., smart cities, vertical industries, and IoT). The distributed and programmable fog technologies that are proposed in TelcoFog are expected to strengthen the position of the mobile network and cloud markets. TelcoFog, by design, is capable of integrating an ecosystem for network operators willing to provide NFV, MEC, and IoT services. TelcoFog's key benefits are the dynamic deployment of new distributed low-latency services. The novel TelcoFog architecture consists of three main building blocks: a scalable TelcoFog node, which is seamlessly integrated in the telecom infrastructure; a TelcoFog controller, focused on service assurance and based on service data modeling using YANG, which is integrated in the management and orchestration architecture of the telecom operator; and TelcoFog services, which are able to run on top of the TelcoFog and telecom infrastructure. The TelcoFog architecture is validated through a proof of concept for IoT services.