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- Evaluation of parental control tools functionalities: The Chilean contextPublication . Rojas, Nicolás; Boettcher, Nicolás; Játiva, Pablo Palacios; Gutiérrez Gaitán, MiguelChoosing a reliable parental control tool is essential to supervising minors accessing information and using electronic devices. For this, it is necessary to determine which tools are the most suitable and if their functionalities are effective. To our knowledge, despite the availability of existing tools that evaluate applications and different actors, e.g., parent control applications recommended by Internet Service Providers (ISPs), none of them properly characterize the various functionalities provided by the application while validating their efficacy. In this paper, we propose a new comprehensive metric to effectively identify and evaluate the functionalities provided by tools in the field of parental control. The metric is applied to some of the most downloaded apps from the Play Store, and the results are compared with the applications recommended by ISPs in Chile, which cover more than 93% of the market. The results from our analysis show that none of the parent control applications recommended by Chilean ISPs managed to provide full confidence in the functionalities implemented since at least one of their functions did not pass the test applied. The end goal for the test metric proposed is to allow future developers to assess their applications beforehand while offering a better match with the customer’s expected service.
- On the performance of an air-water visible light communication systemPublication . Martínez, Guillermo; Játiva, Pablo Palacios; Gutiérrez Gaitán, Miguel; Azurdia, Cesar; Boettcher, Nicolás; Zabala-Blanco, DavidResearch on wireless communication in water environments is gaining attention due to its relevance in enabling and supporting new applications under the Underwater Internet of Things (UIoT) umbrella. Visible Light Communication (VLC) is one of the emerging communication technologies with the potential to contribute to this domain, especially concerning direct communications from above the surface to underwater nodes. Although more traditional radio frequency (RF) communications are not suitable for air-to-water communications, VLC offers unique opportunities in this area. In this respect, this work presents a simulative study attempting to theoretically understand the performance of VLC systems in both underwater and air-to-water channels. We explore performance metrics including, link gain, time delay, and bit-error rate, while analyzing the optical signal interruption on the sea surface due to water level changes. The investigation offers preliminary results that shed light on the feasibility and challenges of effectively enabling cross-border air-water communication systems using VLC technologies.