Group of Next-Generation Networks and Services

Nikola Tesla St, Office 9401

28031 Madrid

We are GRyS, a multidisciplinary research group at the Universidad Politécnica de Madrid (UPM) dedicated to advancing next-generation networks and services. Our members bring together diverse expertise in Cyber-Physical Systems (CPS), Internet of Things (IoT), cooperative robotics, wireless sensor and actuator networks (WSAN), advanced software architectures, distributed applications and middleware, high-performance and resilient computing, semantic and adaptive systems, decision support systems, and cloud and edge computing.

The group brings together experienced researchers, early-career academics, and emerging talents, forming a vibrant and evolving team capable of addressing the complex challenges of today’s interconnected world. GRyS has a strong record of participation in national and international research projects, including coordination roles, and its members have published extensively in leading journals, conferences, and books.

Beyond academic research, we are committed to turning knowledge into impact. Several of our developments have led to registered software products and open-source solutions, reflecting our dedication to open science, collaboration, and technology transfer. This approach not only advances our field but also contributes to making digital technologies more accessible, sustainable, and useful to society.

Discover our work in Research, explore our OpenTech Lab to see innovation in action, or meet the people behind GRyS.

news

Sep 04, 2025	NexTArc Kickoff Meeting in Stockholm
Sep 19, 2024	Mario San-Emeterio disserted his PhD thesis
May 29, 2024	Intellectual Property Registered for “Semantic Interoperability Support System”
Apr 16, 2024	Pedro Castillejo appointed as Associate Professor (Profesor Titular) at UPM
Feb 20, 2024	Néstor Lucas-Martínez Received a Special Mention of Honor in the initial training for university teaching by ICE

opportunities

Sep 23, 2025	Job Opportunity: Research Engineer in Embedded AI and Smart Mobility (NexTArC Project – GRyS, UPM) Deadline: October 21, 2025 at 11:00 PM (CEST)
May 20, 2025	Scholarship Opportunity: AI & Edge Computing for Precision Agriculture Deadline: June 1, 2025 at 12:00 PM (CEST)

latest publications

A survey on Identity and Access Management for future IoT services

Yiting Wang, Pedro Castillejo, José-Fernán Martínez-Ortega, and Vicente Hernández Díaz

Computer Networks, Nov 2025

DOI Bib

@article{wang_survey_2025,
  title = {A survey on {Identity} and {Access} {Management} for future {IoT} services},
  volume = {272},
  issn = {13891286},
  url = {https://linkinghub.elsevier.com/retrieve/pii/S138912862500684X},
  doi = {10.1016/j.comnet.2025.111718},
  language = {en},
  urldate = {2025-11-15},
  journal = {Computer Networks},
  author = {Wang, Yiting and Castillejo, Pedro and Martínez-Ortega, José-Fernán and Hernández Díaz, Vicente},
  month = nov,
  year = {2025},
  pages = {111718},
  dimensions = {true}
}

Edge-enabled IAM for IoTs with edge-based access management and context-driven syncservice

Yiting Wang, José-Fernán Martínez-Ortega, Pedro Castillejo, and Mario San Emeterio De La Parte

Journal of Systems Architecture, Aug 2025

DOI Bib

@article{wang_edge-enabled_2025,
  title = {Edge-enabled {IAM} for {IoTs} with edge-based access management and context-driven syncservice},
  volume = {165},
  issn = {13837621},
  url = {https://linkinghub.elsevier.com/retrieve/pii/S138376212500102X},
  doi = {10.1016/j.sysarc.2025.103430},
  language = {en},
  urldate = {2025-11-15},
  journal = {Journal of Systems Architecture},
  author = {Wang, Yiting and Martínez-Ortega, José-Fernán and Castillejo, Pedro and San Emeterio De La Parte, Mario},
  month = aug,
  year = {2025},
  pages = {103430},
  dimensions = {true}
}

SISS: Semantic Interoperability Support System for the Internet of Things

Mario San Emeterio De La Parte, José-Fernán Martínez-Ortega, Néstor Lucas-Martínez, and Vicente Hernández Díaz

IEEE Internet of Things Journal, Aug 2025

DOI Bib

@article{parte_siss_2025,
  title = {{SISS}: {Semantic} {Interoperability} {Support} {System} for the {Internet} of {Things}},
  copyright = {https://creativecommons.org/licenses/by-nc-nd/4.0/},
  issn = {2327-4662, 2372-2541},
  shorttitle = {{SISS}},
  url = {https://ieeexplore.ieee.org/document/11028910/},
  doi = {10.1109/JIOT.2025.3577776},
  urldate = {2025-06-27},
  journal = {IEEE Internet of Things Journal},
  author = {Parte, Mario San Emeterio De La and Martínez-Ortega, José-Fernán and Lucas-Martínez, Néstor and Díaz, Vicente Hernández},
  year = {2025},
  pages = {1--1},
  dimensions = {true}
}

Spatio-temporal semantic data management systems for IoT in agriculture 5.0: Challenges and future directions

Mario San Emeterio De La Parte, José-Fernán Martínez-Ortega, Pedro Castillejo, and Néstor Lucas-Martínez

Internet of Things, Apr 2024

DOI Bib

@article{san_emeterio_de_la_parte_spatio-temporal_2024,
  title = {Spatio-temporal semantic data management systems for {IoT} in agriculture 5.0: {Challenges} and future directions},
  volume = {25},
  issn = {25426605},
  shorttitle = {Spatio-temporal semantic data management systems for {IoT} in agriculture 5.0},
  url = {https://linkinghub.elsevier.com/retrieve/pii/S2542660523003530},
  doi = {10.1016/j.iot.2023.101030},
  language = {en},
  number = {April 2024},
  urldate = {2023-12-14},
  journal = {Internet of Things},
  author = {San Emeterio De La Parte, Mario and Martínez-Ortega, José-Fernán and Castillejo, Pedro and Lucas-Martínez, Néstor},
  month = apr,
  year = {2024},
  pages = {101030},
  dimensions = {true}
}