IT and Multi-layer Online Resource Allocation and Offline Planning in Metropolitan Networks

Abstract

Metropolitan networks are undergoing a major technological breakthrough leveraging the capabilities of softwaredefined networking (SDN) and network function virtualization (NFV). NFV permits the deployment of virtualized network functions (VNFs) on commodity hardware appliances which can be combined with SDN flexibility and programmability of the network infrastructure. SDN/NFV-enabled networks require decision-making in two time scales: short-term online resource allocation and mid-to-long term offline planning. In this paper, we first tackle the dimensioning of SDN/NFV-enabled metropolitan networks paying special attention to the role that latency plays in the capacity planning. We focus on a specific use-case: the metropolitan network that covers the Murcia-Alicante Spanish regions. Then, we propose a latency-aware multilayer service-chain allocation (LA-ML-SCA) algorithm to explore a range of maximum latency requirements and their impact on the resources for dimensioning the metropolitan network. We observe that design costs increase for low latency requirements as more data center facilities need to be spread to get closer to the network edge, reducing the economies of scale on the IT infrastructure. Subsequently, we review our recent joint computation of multi-site VNF placement and multilayer resource allocation in the

INSPIRING-SNI: Investigating SDN Programmability Improving Optical South- and North-Bound Interfaces

“…Remarkably, INSPIRING-SNI recently reported a combination of an experimental demonstration of on-line real-time resource allocation in Bristol testbed (i.e. based on [22]) and an off-line capacity planning and network dimensioning study based on a realistic model of the Alicante and Murcia Spanish regions [26]. In particular, [26] used the NIW library for dimensioning of SDN/NFV-enabled metropolitan networks paying special attention to the role that latency plays in the capacity planning.…”

“…based on [22]) and an off-line capacity planning and network dimensioning study based on a realistic model of the Alicante and Murcia Spanish regions [26]. In particular, [26] used the NIW library for dimensioning of SDN/NFV-enabled metropolitan networks paying special attention to the role that latency plays in the capacity planning. Also sitting in-between off-line capacity planning and on-line real-time resource allocation, we covered open-source initiatives for SDN and NFV focusing on their optimization opportunities with strong emphasis on problem modeling, formulation and solving [2].…”

AgriTrust—A Trust Management Approach for Smart Agriculture in Cloud-based Internet of Agriculture Things

“…The concept of a smart irrigation system [26] is proposed in the Cloud-based Internet of Agriculture Things (IoAT) [27] in which sensors gather the findings of soil and transmit it towards the base station (BS) to take the required actions [28]. The major applications of IoT in smart automated agriculture include agricultural monitoring and control [29], controlled environment agriculture [30], open-field agriculture [31], livestock applications [32], food supply chain tracking [33], IoT middleware and interoperability [34,35], multi-layer deployments [36], and commercial solutions [37]. This shows the important role of digital innovation and technology that help in delivering high quality services to improve the urban expansion and migration to cities.…”

Contributing to the planning and deployment of enabling technologies for Smart Cities and Smart Factories

“…This chapter gathers the contributions presented in the following works, where the PhD student contributed: [Romero18a]; [Romero19]; [Romero19a]; [Garrich20]; [Troia19] and [Garrich20b].…”

“…The academic contributions in which the candidate has participated within the context of the thesis have been [Romero18], [Romero18a], [Bueno19] , [Romero19], [Romero19a], [Troia19], [Garrich20], [Garrich20b].…”