David Todolí-Ferrandis's research while affiliated with Universitat Politècnica de València and other places

Publications (12)

Article
Full-text available
The adoption of LoRaWAN as a technology for wireless deployments in many applications, such as smart cities or industry 4.0, still presents challenges such as energy consumption, robustness, or reduced throughput in harsh, noisy scenarios. Class B is a MAC mode that allows better performance in downlink traffic but has difficulties regarding scalab...
Article
Full-text available
Low-power wide-area network (LPWAN) technologies are becoming a widespread solution for wireless deployments in many applications, such as smart cities or Industry 4.0. However, there are still challenges to be addressed, such as energy consumption and robustness. To characterize and optimize these types of networks, the authors have developed an o...
Article
Full-text available
The Industrial Internet of Things (IIoT) is having an ever greater impact on industrial processes and the manufacturing sector, due the capabilities of massive data collection and interoperability with plant processes, key elements that are focused on the implementation of Industry 4.0. Wireless Sensor Networks (WSN) are one of the enabling technol...
Article
Full-text available
Wireless Sensor Networks have become a key enabler for Industrial Internet of Things (IoT) applications; however, to adapt to the derived robust communication requirements, deterministic and scheduled medium access should be used, along with other features, such as channel hopping and frequency diversity. Implementing these mechanisms requires a co...
Article
Full-text available
This paper introduces a novel quality estimator that uses different metrics to decide the best path towards the root in Wireless Sensor Networks. The different metrics are assessed at medium access control layer (MAC), under the IEEE 802.15.4 standard, and are used at network layer, enhancing the best path selection process done by the routing prot...
Conference Paper
Full-text available
Emerging Wireless Sensor Networks (WSN) give support to a wide diversity of applications, but these networks are based on devices with limited resources, requiring communication protocols such as RPL (Routing Protocol for Low power lossy networks) which allow the routes to be fitted to certain requirements. In this paper, we design a custom energy...
Article
Full-text available
This paper considers the framed ALOHA protocol for a finite number of terminals. Terminals are single-buffered, i.e. each one can store only one packet. We derive the throughput and the delay under two types of queue disciplines, first-in-first-out (FIFO) and last-in-first-out LIFO. It is assumed that terminals are independent each other and genera...
Chapter
Water management in urban areas goes beyond the supply of drinking water or the collection and treatment of waste water. There is a growing interest in the use of Information Communication Technology (ICT), resulting in a large number of new applications that provide access to vast amounts of information generated by the diverse facilities, unthink...
Conference Paper
Full-text available
Urban facility interconnection networks require a robustness and reliability usually found in public networks or private cable and radio networks in licensed bands. Both factors mean an increase in costs, which also increase as the size of the network increases. The recent rise in use of wireless technologies in open wavebands has attracted the int...

Citations

... Our study references and bases the evaluation process on a multitude of proposals on different levels of each aspect. To name a few, we refer to the work of Celesti et al. [9] around fault discovery, Garcia-Ortiz et al. [10] for the evaluation of communication channels and microservice interactions in the edge, Fard et al. [11] and Liang et al. [12] for their work on the integration of Kubernetes in IoT environments, and finally Xiong et al. [13] for the evaluation of KubeEdge and the orchestration of edge components. ...
... This is why some works propose strategies to reduce [22] or dynamically adapt [23] the guard time (a TSCH feature intended to cope with non-perfect synchronization), hence saving energy. Authors of [24] have shown how a dynamic modification of the enhanced beacon periods can help in improving synchronization and connection time, with a reduction of energy consumption. Transmission channels can be selected on the fly by means of black and white listing techniques. ...
... Implementing these techniques needs synchronization of all devices in the network. Thus, the authors in (Vera-Pérez et al., 2018) attempted to find a new beacon advertising mechanism depending on the trickle algorithm for the MAC TSCH layer and the timers in the network and network layers. The new solution combines IEEE802.15.4e with its TSCH modes and RPL. ...
... This paper is a revised and expanded version of the paper presented at the 25th Telecommunications Forum TELFOR 2017 [16]. pre-deployment phase is bound to overcome the arguments wielded by technology hesitant adopters. ...
... Though it provides a good energy distribution, it does not examine the link quality of the paths. Another study was made in [14] by taking into account the battery charge needs of wireless sensor network. This motivated them to suggest a new OF based on energy and the results are evaluated against standard OF. ...
... However, with the development of analysis and diagnosis equipment, it is now possible to measure and monitor pollutants faster than in the past. This phenomenon has been expressed using real-time [1][2][3][4], on-line [5], and smart [6][7][8] expressions. ...
... They also addressed the challenges of establishing communication reservation periods for exchanging real-time multimedia traffic between two stations in the presence of interference. The use of 802.11 standards in real-time multimedia applications has been studied in [69] and [70]. Seno et al. [27] proposed a centrally-controlled 802.11 network to decide the admission of nodes that require real-time communication. ...