Access Time Improvement Framework for Standardized IoT Gateways

Abstract

Internet of Things (IoT) is a computing infrastructure underlying powerful systems and applications, enabling autonomous interconnection of people, vehicles, devices, and information systems. Many IoT sectors such as smart grid or smart mobility will benefit from the recent evolutions of the smart city initiatives for building more advanced IoT services, from the collection of human-and machine-generated data to their storage and analysis. It is therefore of utmost importance to manage the volume, velocity, and variety of the data, in particular at the IoT gateways level, where data are published and consumed. This paper proposes an access time improvement framework to optimize the publication and consumption steps, the storage and retrieval of data at the gateways level to be more precise. This new distributed framework relies on a consistent hashing mechanism and modular characteristics of microservices to ensure a flexible and scalable solution. Applied and assessed on a real case study, experimental results show how the proposed framework improves data access time for standardized IoT gateways.

bIoTope: Building an IoT Open Innovation Ecosystem for Smart Cities

“…In the bIoTope project, executed from year 2016 to 2019, one of the goals was to lay the foundation for open innovation ecosystems in which companies and cities can innovate by creating both new software components for the IoT ecosystem, and create new platforms for connected smart objects with minimal investment. Several smart city pilots were developed and deployed in three European cities: Helsinki, Grand Lyon and Brussels [35], [56], [78], [120], [121]. They were implemented to validate the social, technical and business facets of the proposed open IoT ecosystem.…”

“…Furthermore, technical details about some of these pilots have been published in earlier research A. Javed et al: bIoTope: Building an IoT Open Innovation Ecosystem for Smart Cities Table 8. Case study pilots overview for three European cities; Helsinki -1 pilot, Lyon -2 pilots, and Brussels -3 pilots [35], [56], [78], [121]. The real-life case studies presented in our article are based on the bIoTope ecosystem which has also been compared with state-of-the-art research innovations in Sections II and III.…”

Scalable IoT Platform for Heterogeneous Devices in Smart Environments

“…O-MI supports the CRUD (Create, Read, Update, Delete) model, which is the key in any given IoT application and provides six communication interfaces (operations), as listed in TABLE 4. One of the core properties of O-MI is that it is protocol agnostic, meaning that it can be implemented over different protocols, such as HTTP, WebSocket, SOAP, or TCP-IP [57], [58]. An opensource reference implementation for the O-MI standard has been developed 3 , which contains three main components: (i) the API endpoint handles user requests and currently supports both HTTP and WebSocket protocols; (ii) the Agent system contains multiple software agents, which are used to pull/push data (e.g., sensor data values) from and to the internal database; and (iii) the User/Web interface is used for executing O-MI operations, listed in Table 4.…”

An OAuth-based Authentication Mechanism for Open Messaging Interface Standard

“…In O-MI Node, each node can act both as a "server" and as a "client" with other nodes or systems. O-DF is specified as an expandable XML Schema for representing payload in Internet of things applications (Javed et al, 2019) (Madhikermi et al, 2018).…”