The Wireless Networking Research Group at the University of Chile is devoted to the research on all aspects of wireless networking and protocols. The group is located in the Department of Electrical Engineering, Faculty of Physical and Mathematical Sciences. We work in close collaboration with the NIC Chile Research Labs in topics related to Internet research and with the Advanced Center of Electrical and Electronic Engineering (AC3E) in topics related to digital communications within the Data Analytics and Artificial Intelligence research line.
The group is under the direction of Prof. Sandra Céspedes, and current topics of research include:
- Heterogeneous wireless networking
- Intelligent Transportation Systems applications, modeling and simulation
- Context-aware protocols design
- Vehicular networking protocols
- Cyber-physical systems for smart transportation
- Design, evaluation, and adaptation of protocols for the Internet of Things
- Routing and communications technologies for advance metering infrastructure
- Space networking
- Delay tolerant networking
- Challenging wireless networks
Interested in working with us? Send an email to scespedes [at] ing.uchile.cl
Av. Tupper 2007, Santiago 8370451, Chile.
CONICYT ERANet ELAC 2015/T10-0761 Web Site
In collaboration with Center for Research and Advanced Studies of the National Polytechnic Institute (Mexico), Latvia University of Life Sciences and Technologies (Latvia), Transilvania University of Brasov (Romania)
Cities around the world are experiencing great challenges in terms of resiliency and adaptability in the face of fast growing populations, high dependency of critical infrastructure (e.g., power network availability, public transit availability, among others), and extreme –sometimes catastrophic– events. In general terms, the more complex the transportation system, the greater the potential for disruptions. Therefore, we address resiliency in transport systems from the perspective of ICT-based research. Our objectives are the following:
1) To integrate advanced data analysis, novel models of traffic behavior, and visualization to provide real time decision support systems based on proposed algorithms and methods.
2) To design adaptable and sustainable transport infrastructure through the use of renewable energy sources in microgrids for urban electric vehicles.
3) To design secure communication and networking protocols that support real time decision making from users, and enable a resilient operation of urban transportation in cases of disruptions, outages, and disaster events.
This project requires integration of computing, communications, and control methods with the aim of enabling resilient urban transportation systems in smart cites. Results derived from the proposal may benefit future city design and developing plans, especially in large cities of developed and developing countries.
CONICYT FONDECYT Iniciación 11140045, UCHILE U-INICIA 2014-05
Among the open research fields in vehicular communications, the heterogeneous vehicular network is the topic of interest in this project. In the vehicular networking context, a large part of existent research has been focusing on developing and studying the performance of network protocols for a specific radio access technology. However, it has been widely accepted that the supporting infrastructure and communications technologies for vehicular networks will be heterogeneous in nature, hence providing network diversity. Large coverage access networks, such as 3G/4G cellular and WiMAX networks, will be combined with wireless local area networks (WLAN), such as 802.11b/g/n. Moreover, they will also integrate technologies specifically designed for vehicular environments, such as the 802.11p DSRC technology.
The general goal of this project is to exploit the network diversity in a heterogeneous vehicular network for designing a dissemination mechanism suitable for traffic efficiency applications, achieving an improved performance and a seamless communications experience for users of an urban vehicular network. In addition, we will considered multi-hop communications powered by the 802.11p DSCR technology, which will help improve coverage for short-range networks and reduce communication delays.
In collaboration with Dr. Juan Salamanca – University of Illinois at Urbana-Champaign, USA
Bicycle use has steadily risen its share of total urban traffic over the last decade. This has been the result of city governments’ promotion of alternative forms of transportation, in the search for finding strategies that help reduce traffic congestion. Although benefits of cycling in congestion and pollution are concrete, in several cities the increment of cyclists has gotten to the point to overflow the infrastructure, deriving in safety risks and gridlocks due to the lack of explicit coordination among cyclists. This project is the integration of two strategies that so far have been considered completely independent: cooperative driving and cycling.
Our project addresses the coordination of collective behavior of platoons of cyclists that could pervade dedicated express roads such as the London’s 18 mile East-West Cycle Superhighway. The proposed platoon-based cyclists cooperative system can be defined as a networked cyber-physical system with an additional challenge related to the human factor. Different from traditional automated platooning, in the proposed system cyclists respond to a Cooperative Adaptive Cruise Control delivered through specific human-machine interfaces (HMI) designed to elicit the expected response from cyclists.
In collaboration with NICLabs and Gabriel Montenegro (Microsoft)
In collaboration with Universidad Pontificia Bolivariana (Colombia)
Smart Grid is the electricity delivery system that intends to enhance reliability, efficiency, and security of the power grid. A fundamental component of this intelligent network is an Advanced Metering Infrastructure (AMI), which provides a two-way communication flow between Utilities and meters at the customer side. While several Utilities are implementing first approximations to an AMI, there is no certainty that future traffic of different natures can be supported throughout these deployments. We carry out an extensive review of the communication technologies that are employed for the implementation of AMI, as well as performance evaluations and comparisons through simulations of routing algorithms for Neighborhood Area Networks for AMI, as well as simulations of NAN access technologies and protocols, in pursuit of a better understanding of the primary challenges that will have to be faced for the development and enhancement of AMI networks.
In collaboration with Prof. Cristián Cortés and the ISCI
Today the advances in technology have changed the paradigms behind the planning, fleet design and optimization processes associated with massive transport systems, moving to a world where the dispatch and routing decisions made online by systems’ operators as well as normal people driving their own car, are based on real-time information from the conditions of the whole system performance. In addition, other actors of the transportation system such as bicycles and pedestrians have to be considered in modern models of transportation as well as in evaluations through simulations. In the frame of this projectn we have developed an adaptation of the renowned VEINS bidirectional simulation framework for use with traffic simulator Paramics, in order to test routing and planning models for public transportation. We also use VEINS for the evaluation of novel applications for safer transportation systems, such as collision prevention at intersections for vehicles and cyclists based on prediction models and algorithms.
Cisco Research Grant #2019-199458 (3696). In collaboration with NIC Labs and Dr. Juan Salamanca (University of Illinois at Urbana-Champaign)
The advancement in vehicular technologies and informatics has led to an interdisciplinary field known as "connected vehicles." By connecting vehicles with various devices, services, and participants, we can make our mobility more enjoyable and sustainable. The concept of connected vehicles and the development of the associated communication technologies (i.e., IEEE 802.11OCB —previously known as 802.11p— and C-V2X, among others) are reaching a mature state. Consequently, a new concept, known as the Cooperative Intelligent Transportation Systems (ITS), appears since vehicles will be able to cooperate with other vehicles, with the infrastructure, and with the whole traffic network. Nevertheless, a real Cooperative ITS not only considers cars, trucks, and public transport among the intervening actors; vulnerable road users (VRUs) such as pedestrians, bicycles, and motorcycles are also part of such a system. This project seeks to answer the following general question: what is missing for transferring the benefits of road safety improvements--based on connected vehicles technology--to the vulnerable road users? We plan to answer the question by exploring the vehicular networking protocols and designing dissemination mechanisms and other networking protocols that will consider the VRUs in the design process.
ANID FONDECYT Regular 1201893
This project focuses on the segment of LEO constellations that intend to remain as a low-cost solution for IoT connectivity of wide-area and power-constrained sensor (and actuators) networks. The focus is on the direct-to-satellite access mode, where the sensor nodes are equipped for communicating directly with the satellite. We intend to explore the definition of novel hybrid architectures and networking protocols for direct-to-satellite IoT networks. It involves the combination of two promising technologies: LEO constellations with small and nanosatellites together with Low-Power Wide-Area technologies (LPWA) such as LoRa and NB-IoT.
This project addresses aspects related to the design of cross-layer networking protocols. The focus is on the first three layers of a typical communications system: physical, link, and network layers. The methodology involves both analytical modeling and realistic simulations for performance evaluations, which will re-create communications over space conditions with real-time simulations using hardware-on-the-loop techniques.
FONDEF IDeA I+D ID19I10363. In collaboration with NIC Labs, Dr. Juan Salamanca (University of Illinois at Urbana-Champaign), Arcadis Chile, ESVAL, and the DGA (Government of Chile).
This is a research and development project. We propose the creation of an experimental prototype of an automated system for continuous monitoring of groundwater and hydric surface resources. The system has four main components: low-cost sensor nodes that measure water levels and water quality, a low-cost communication system based on IoT technologies, and expert system for processing and detection of events and anomalies, and a visualization dashboard. With this prototype, we intend to show the possible improvements to the current water monitoring system in Chile, by building a low-cost tool for providing additional information to decision-making actors and with timely detection of events.
STIC-AMSUD N° 21-STIC-12 Folio STIC2020003. In collaboration with Universidad Nacional de Córdoba, Argentina (PI: Juan Fraire), and LAARS-CNRS, France (PI: Pascal Berthou / Nicola Accetura)
In this project, we tackle the challenges involved in the modernization of the satellite-based communications by considering the requirements and restrictions of the deployments of large-scale constellations of nano and small satellites. The contributions of the participant institutions are threefold: 1) the application of state-of-the-art informatics for the operation and design of large scale satellite constellations; 2) the definition and evaluation of hybrid architectures with LPWA and nano/small satellite technologies, and 3) the design of networking protocols for challenging and restricted networks in space communications. Besides developing a strong international collaboration network around these topics, during the execution of this project we expect to provide student mobility and scientific training to the participants.
- E. Salazar, C. Azurdia-Meza, D. Zabala-Blanco, S. Bolufé, I. Soto, "Semi-Supervised Extreme Learning Machine Channel Estimator and Equalizer for Vehicle to Vehicle Communications", Electronics 10, no. 8: 968. https://doi.org/10.3390/electronics10080968, Aprl 2021. [PDF]
- H. Kang Kim, R. Becerra, S. Bolufé, C. Azurdia-Meza, S. Montejo-Sánchez, D. Zabala-Blanco, "Neuroevolution-Based AdaptiveAntenna Array Beamforming Schemeto Improve the V2V Communication Performance at Intersections". Sensors 2021, 2956. https://doi.org/10.3390/s21092956, Apr 2021. [PDF]
- J. Jeong, Y. Shen, T. Oh, S. Céspedes, N. Benamar, M. Wetterwald and J. Härri, “A comprehensive survey on vehicular networks for smart roads: A focus on IP-based approaches”. in Elsevier Vehicular Communications, pp100334. Jan. 2021. [PDF]
- F. Valle, S. Céspedes and A. S. Hafid,“Automated Decision System to Exploit Network Diversity for Connected Vehicles”, in IEEE Transactions on Vehicular Technology, vol. 70, no. 1, pp. 858-871, doi: 10.1109/TVT.2020.3046413, Jan. 2021. [PDF]
- T. Lara, A. Yáñez, S. Céspedes, A. S. Hafid, "Impact of Safety Message Generation Rules on the Awareness of Vulnerable Road Users." Sensors (14248220) 21, no. 10, May 2021 DOI: 10.3390/s21103375 [PDF]
- P. Ilabaca, S. Montejo-Sanchez, S. Céspedes, "Network Size Estimation in Direct-to-Satellite IoT", 2021 IEEE 8th International Conference on Space Mission Challenges for Information Technology (SMC-IT), virtual conference, Jul 2021.
- S. Bolufé, C. A. Azurdia-Meza, S. Céspedes and S. Montejo-Sánchez,“Impact of Awareness Control on V2V-based Overtaking Application in Autonomous Driving”, in IEEE Communications Letters, doi: 10.1109/LCOMM.2020.3044734. Dec. 2020. [PDF]
- A. Yáñez and S. Céspedes,“Pedestrians also Have Something to Say: Integration of Connected VRU in Bidirectional Simulations”, IEEE Vehicular Networking Conference (VNC), New York, NY, USA, doi: 10.1109/VNC51378.2020.9318367, Dec. 2020
- A. Arteaga, P. Palacios Játiva, S. Céspedes, C. Azurdia-Meza, “Evaluation of Opportunistic Access Strategies for Vehicular Networking Over TVWS”, in Proc. 2020 IEEE 92nd Vehicular Technology Conference (VTC-Fall 2020), Victoria, BC Canada, Oct 2020.
- P. Ortega, S. Céspedes, S. Montejo-Sanchez, “Increasing Safety at Vehicular Intersections with a Controlled Retransmission of Beacons”, in Proc. 2020 IEEE Colombian Conference on Communications and Computing (COLCOM), Cali, Colombia, Aug 2020.
- D. Londoño, S. Céspedes, J. Bustos, “Analysis and Evaluation of HTTP/2 Flow Control Algorithm for IoT”, in Proc. 2020 IEEE Colombian Conference on Communications and Computing (COLCOM), Cali, Colombia, Aug 2020.
- J. Jeong, S. Cespedes, N. Benamar, J. Haerri, “IPv6 Wireless Access in Vehicular Environments (IPWAVE): Problem Statement and Use Cases” (work in progress), available: https://datatracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/ , Jul 2020.
- J. Jeong, Y. Shen, Z. Xiang, S. Cespedes, “Vehicular Neighbor Discovery for IP-Based Vehicular Networks” (work in progress), available: https://datatracker.ietf.org/doc/draft-jeong-ipwave-vehicular-neighbor-discovery/ , May 2020.
- I. Serban, S. Céspedes, C. Marinescu, C. A. Azurdia-Meza, J. S. Gómez and D. Sáez, "Communication Requirements in Microgrids: A Practical Survey", in IEEE Access, vol. 8, pp. 47694-47712, Mar 2020. [PDF]
- E. Inga, R. Hincapié, and S. Céspedes, “Capacitated Multicommodity Flow Problem for Heterogeneous Smart Electricity Metering Communications Using Column Generation”, Energies, vol. 13, no. 1, p. 97, Jan 2020.
S. Bolufé, C. A. Azurdia-Meza, S. Céspedes, S. Montejo-Sánchez, R. D. Souza and E. M. G. Fernandez, "POSACC: Position-Accuracy Based Adaptive Beaconing Algorithm for Cooperative Vehicular Safety Systems", IEEE Access, vol. 8, pp. 15484-15501, Jan 2020. [PDF]
- T. Nunez, J. Lopez, S. Montejo, C. Azurdia, S. Cespedes, “Analysis of Channel Models for LoRa-based Direct-to-Satellite IoT Networks Served by LEO Nanosatellites”, in Proc. IEE International Conference on Communications (IEEE ICC) – 2nd Workshop on Internet of Mobile Things, virtual conference, Montreal, Jun 2021.
- D. Wistuba, S. Céspedes, J.C. Zúñiga, R. Muñoz, S. Aguilar, C. Gomez, R. Vidal, “An Implementation of IoT LPWAN SCHC Message Fragmentation and Reassembly”, School on Systems and Networks 2020 (SSN2020), Vitoria, Brazil, Dec 2020.
- A. Yáñez, S. Céspedes, J. Rubio-Loyola, “A Baseline for Context-aware Safety Messages Dissemination in VANETs”, in Revista Facultad de Ingeniería Universidad de Antioquia, n. 93, pp. 9-18, Dec 2019. [PDF]
- T. Lara, O. Cartagena, S. Céspedes, D. Sáez, “Robust Model Based Predictive Control for a Cooperative Cycling Cyber-physical System”, Proc. 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valparaiso, Chile, 2019, pp. 1-6.
- R. Munoz-Lara, S. Céspedes and A. Hafid, "Understanding and Characterizing Transmission Times for Compressed IP packets over LoRaWAN",2019 IEEE Latin-American Conference on Communications (LATINCOM), Salvador, Brazil, pp. 1-6., Nov 2019.
- J.A. Fraire, S. Céspedes, N. Accettura, “Direct-To-Satellite IoT - A Survey of the State of the Art and Future Research Perspectives”, in Ad-Hoc, Mobile, and Wireless Networks. ADHOC-NOW 2019. Lecture Notes in Computer Science, Palattella M., Scanzio S., Coleri Ergen S. (eds), vol 11803. Springer, Cham, Sep 2019.
- H. Kang, S. Montejo-Sánchez, C. A. Azurdia-Meza and S. Céspedes, "Beamforming for Beaconing in V2V Communications", 2019 IEEE XXVI International Conference on Electronics, Electrical Engineering and Computing (INTERCON), Lima, Peru, pp. 1-4. Aug 2019.
- T. Ferrer, S. Céspedes, A. Becerra, “Review and Evaluation of MAC Protocols for Satellite IoT Systems Using Nanosatellites”, Sensors, vol. 19, no. 8, p. 1947, Apr. 2019. [PDF]
- A. Arteaga, S. Céspedes, C. Azurdia-Meza, “Vehicular communications over TV White Spaces in the presence of Secondary Users", IEEE Access, vol. 7, pp. 53496-53508, Apr 2019. [PDF]
- S. Torres, S. Céspedes, J. Bustos-Jiménez, M. Serrano, “IoT solutions for Sustainable Cities: An Online Adaptation for the Driver Intent Inference Algorithm”, in Proc. IEEE 5th World Forum on Internet of Things, Limerick, Ireland, Apr 2019.
S. Céspedes, J. Salamanca, A. Yáñez, and D. Vinasco, "Group Cycling Meets Technology: A Cooperative Cycling Cyber-Physical System". In IEEE Transactions on Intelligent Transportation Systems. Dec 2018. [PDF]
- Jeong, J. P. "IP Wireless Access in Vehicular Environments (IPWAVE): Problem Statement and Use Cases". Internet Engineering Task Force. Internet-draft (work in progress), available: Nov 2018.
- P. Ortega, S. Bolufé, S. Céspedes, C. Azurdia-Meza, S. Montejo, F. Maciel-Barboza, "Connectivity improvement in urban intersections obstructed by buildings using RSUs", in Proc. IV School oF Systems and Networks 2018, Valdivia, Chile, Oct 2018. [PDF]
- P.A. Bolaños, S. Céspedes, J.C. Cuéllar, "Prototype of a wireless sensor network for monitoring the coffee drying process", in Proc. IV School oF Systems and Networks 2018, Valdivia, Chile, Oct 2018. [PDF]
- T. Ferrer, S. Céspedes, A. Becerra, "Evaluation of MAC protocols for IoT satellite systems", in Proc. IV School oF Systems and Networks 2018, Valdivia, Chile, Oct 2018.
- S. Torres, S. Céspedes, "Proposal for architecture and simulated implementation of an early warning system for cyclists based on an algorithm of right turn predictions of vehicles" in Proc. IV School oF Systems and Networks 2018, Valdivia, Chile, Oct 2018.
- T. Lara, A. Arteaga, and S. Céspedes, "Comparison of Path Loss Models for Vehicular Communications in TV White Spaces." in Proc. IV School oF Systems and Networks 2018, Valdivia, Chile, Oct 2018.
- A. Arteaga, S. Céspedes, and C. Azurdia-Meza. "Next generation vehicular communications via interworking of DSRC and TV White Space." In 2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), pp. 1-2. Waterloo, Canada. Aug 2018.
- V. Matus, C. A. Azurdia-Meza, S. Céspedes, P. Ortega, S. Montejo-Sánchez, J. Rojas, and I. Soto, “Implementation of a Low-Cost Vehicular VLC System and CAN Bus Interface”, in Proc. 2018 11th IEEE/IET International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP) – 6th Colloquium on Optical Wireless Communications, Budapest, Hungary, Jul 2018.
- E. Inga, M. Campaña, R. Hincapié, S. Céspedes, “Optimal Placement of Data Aggregation Points for Smart Metering using Wireless Heterogeneous Networks”, in Proc. 2018 IEEE Colombian Conference on Communications and Computing (COLCOM), Medellin, Colombia, May 2018.
- J. S. Sánchez-Mahecha, S. Céspedes, J. Bustos-Jiménez, “QoS Evaluation of the Future High Efficiency IEEE 802.11ax WLAN Standard”, in Proc. 2018 IEEE Colombian Conference on Communications and Computing (COLCOM), Medellin, Colombia, May 2018.
- A. Yáñez, S. Céspedes, and J. Rubio, “CASSaM: Context-aware System for Safety Messages Dissemination in VANETs”, in Proc. 2018 IEEE Colombian Conference on Communications and Computing (COLCOM), Medellin, Colombia, May 2018.
- S. Bolufé, C. A. Azurdia-Meza, S. Céspedes, S. Montejo-Sanchez, R. Demo Souza, E. M. G. Fernandez, and C. Estevez, “Dynamic Beaconing using Probability Density Functions in Cooperative Vehicular Networks”, in Proc. 4th International Conference on Vehicle Technology and Intelligent Transport Systems (VEHITS), Funchal, Madeira, Portugal, Mar 2018.
- S. Bolufé, S. Montejo-Sánchez, C. A. Azurdia-Meza, S. Céspedes, R. Demos Souza, and E. M. García, “Dynamic Control of Beacon Transmission Rate and Power with Position Error Constraint in Cooperative Vehicular Networks”, in Proc. 33rd ACM/SIGAPP Symposium On Applied Computing (SAC), Pau, France, Apr 2018.
- P. Ortega, S. Céspedes, S. Bolufé, and C. Azurdia, “Experimental Evaluation of Adaptive Beaconing for Vehicular Communications”, in Proc. 6th International Workshop on ADVANCEs in ICT Infrastructures and Services, Santiago, Chile, Jan 2018.
- E. Inga. S. Céspedes , R. Hincapié, C. A. Cárdenas, “Scalable Route Map for Advanced Metering Infrastructure Based on Optimal Routing of Wireless Heterogeneous Networks”, IEEE Wireless Communications, vol.24,no.2,pp.26-33, April 2017. [PDF]
- S. Montejo-Sánchez, C. Azurdia-Meza, S. Bolufé, S. Céspedes, I. Soto, and R. Demo Souza, “Novel Channel Hopping Sequence Approaches to Rendezvous for VANETs”, in Proc. 2017 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Pucón, Chile, Oct 2017.
- D. Londoño, M. González, S. Céspedes, J. Bustos, G. Montenegro, “Performance Evaluation of HTTP/2 Window Size in the Internet of Things”, in Proc. III Spring School on Networks 2017, Pucón, Chile, Oct 2017.
- Gonzalez Mendoza, B. Holloway, A. Hevia, S. Céspedes and J. Bustos, “Coordination of Autonomous Vehicles at Intersections with V2V (decentralized) communication”, in Proc. III Spring School on Networks 2017, Pucón, Chile, Oct 2017.
- S. Bolufé, S. Montejo-Sánchez, C. Azurdia-Meza, S. Céspedes, R. Demo Souza, and Martin Garcia Fernandez, “Dynamic Control of Beacon Transmission Rate with Position Accuracy in Vehicular Networks”, in Proc. III Spring School on Networks 2017, Pucón, Chile, Oct 2017.
- A. Yáñez, S. Céspedes, and J. Rubio, “Towards a Context-aware Dissemination Mechanism for Vehicular Networks”, in Proc. III Spring School on Networks 2017, Pucón, Chile, Oct 2017.
- J. Salamanca, S. Céspedes, L. Rivera, F. Camacho, "Urban Cycling Platoons Syncing Traffic Infrastructure", in Proc. 23rd International Sustainable Development Research Society Conference. Bogota, Colombia, Jun 2017
- G. Montenegro, S. Cespedes, S. Loreto, R. Simpson, “HTTP/2 Configuration Profile for the Internet of Things”, Internet Engineering Task Force. Internet-draft (work in progress), available: Link , March 2017
- G. Montenegro, S. Cespedes, S. Loreto, R. Simpson, “H2oT: HTTP/2 for the Internet of Things”, Internet-draft (work in progress), available: https://tools.ietf.org/html/draft-montenegro-httpbis-h2ot-00, July 2016
- J. Salamanca, S. Céspedes, D. Vinasco, and A. Yañez, “Demo: A prototype for a platoon-based cyclist cooperative system” in Proc. 2016 IEEE Vehicular Networking Conference (VNC), Columbus, OH, Dec 2016, DOI: 10.1109/VNC.2016.7835985
- F. Valle and S. Céspedes. “Improving vehicular applications through network diversity.” In Proc. IEEE Latin-American Conference on Communications (LATINCOM) 2016, Medellin, Colombia, Nov 2016. DOI: 10.1109/LATINCOM.2016.7811604
- F. Valle and S. Céspedes. “Enhancing Vehicular Applications by Exploiting Network Diversity”, in Proc. II Spring School on Networks 2016, Santiago, Chile, Nov 2016. URN: urn:nbn:de:0074-1727-4
- B. Holloway, S. Cespedes, and A. Hevia. “Analisys of Attacks to Automated Vehicular Coordination Systems at Intersections.” in Proc. II Spring School on Networks 2016, Santiago, Chile, Nov 2016. URN: urn:nbn:de:0074-1727-4
- D. Londoño and S. Céspedes. “Performance Evaluation of CoAP and HTTP/2 in Web Applications.” in Proc. II Spring School on Networks 2016, Santiago, Chile, Nov 2016. URN: urn:nbn:de:0074-1727-4
- A Arteaga, S Céspedes, C Azurdia, “Spectrum Sensing for Vehicular Dynamic Spectrum Access”, in Proc. II Spring School on Networks 2016, Santiago, Chile, Nov 2016. URN: urn:nbn:de:0074-1727-4
- C. Estévez, C. Azurdia, S. Céspedes. “Overcoming Intrinsic Losses With a Physical-Transport Cross-Layer Control System for Low-SNR Links”, in IEEE Communications Letters, vol.19, no.12, pp.2094-2097, Dec 2015. DOI: 10.1109/LCOMM.2015.2490672 [PDF]
- S. Céspedes, X. (Sherman) Shen. “On Achieving Seamless IP Communications in Heterogeneous Vehicular Networks”, in IEEE Transactions on Intelligent Transportation Systems , vo.16, no.6, pp.3223-3237, Dec 2015. DOI: 10.1109/TITS.2015.2442251. [PDF]
- A. Orozco, S. Céspedes, R. Michoud, and G. Llano. “Design and Simulation of a Collision Notification Application with Geocast Routing for Car-to-Car Communications”, in European Transport Research Review, vol.7 (4), p.36, Oct 2015. DOI: 10.1007/s12544-015-0185-1 [PDF]
- D. F. Ramírez, S. Céspedes, “Routing in Neighborhood Area Networks: A Survey in the Context of AMI Communications”, Journal of Network and Computer Applications, vol.55, pp.68-80, September 2015. [PDF]
- S. Céspedes, J. Salamanca, A. Yañez, C. Rivera., J. Sacanamboy. “Platoon-based Cyclists Cooperative System”, in Proc. IEEE Vehicular Networking Conference (VNC) 2015, Kyoto, Japan, Dec 2015. DOI:10.1109/VNC.2015.7385556
- C. Estévez, S. Céspedes, “Improving Performance of TCP-Based Applications in Power Line Communications for Smart Grids”, in Proc. IEEE Latin-American Conference on Communications (LATINCOM) 2015, Arequipa, Peru, Nov 2015. DOI: 10.1109/LATINCOM.2015.7430132
- A. Falcheti, C. Azurdia, S. Céspedes, “Vehicular Cloud Computing in the Dawn of 5G”, in 2015 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Santiago, Chile, Oct 2015. DOI: 10.1109/Chilecon.2015.7400392
- D.F. Ramírez, S. Céspedes, “Performance Evaluation of Future AMI Applications in Smart Grid Neighborhood Area Networks”, IEEE Colombian Conference on Communications and Computing (COLCOM) 2015, Popayán, Colombia, May 2015. DOI: 10.1109/ColComCon.2015.7152093
- C. Lazo, P. Gallardo, S. Céspedes, “A Bridge Structural Health Monitoring System Supported by the Internet of Things”, IEEE Colombian Conference on Communications and Computing (COLCOM) 2015), Popayán, Colombia, May 2015. DOI: 10.1109/ColComCon.2015.7152094
- Sandra Céspedes participated as a keynote speaker in the IEEE COLCOM Conference, with the talk “IoT goes to space: A revision of the challenges to enable IoT connectivity from nano-satellites constellations”, May 2020
- Tomás Lara received a scholarship from ANID Chile to do a Master with our group, starting March 2020
- Alexis Yañez received a scholarship to do a Ph.D. with our group, starting March 2020
- Sandra Céspedes has been selected as Associate Researcher with the Data Analytics and Artificial Intelligence group at the Advanced Center of Electrical and Electronic Engineering, UTFSM, Chile
- Adriana Arteaga was hired by INRIA Francia for a Research Internship in Opportunistic mobile computing, from March to July 2020
- Our group received funding from ANID Chile to develop a project about IoT and nanosatellites in a FONDECYT Regular, starting April 2020
- Our group received funding from FONDEF to develop a prototype for an IoT-based monitoring systems of hydric resources with events detection
- Salomón Torres presented his paper “IoT solutions for Sustainable Cities: An Online Adaptation for the Driver Intent Inference Algorithm" in the IEEE 5th World Forum on Internet of Things, Limerick, Ireland, April 2019.
- Adriana Arteaga was granted a scholarship by the University of Chile to do a research stay at the BBCR group, University of Waterloo, Canada, under the advising of Prof. Sherman Shen, April-June 2019.
- Jeisson Sánchez has been selected as ISOC Fellow to attend the IETF 104th meeting in Prague, CZ. During the meeting, he presented part of his MSc. thesis in the MAPRG. March 2019.
- Alexis Yáñez has defended his MSc. and Undergrad thesis in Electrical Engineering titled "Context-aware system for selection and parameterization of dissemination mechanisms in vehicular ad hoc neworks". He received the Maximum distinction degree. March 2019.
- Nicolás Maturana has defended his Undergrad thesis in Electrical Engineering titled "Implementation and Evaluation of Static Context Header Compression for IPv6 packets within LoRaWAN network". He received the Maximum distinction degree. January 2019.
- Our article "Review and Evaluation of MAC protocols for Satellite IoT systems using Nanosatellites” has been accepted for publication in Sensors. February 2019.
- Our article “A Baseline for Context-aware Safety Messages Dissemination in VANETs” has been accepted for publication in Redin Revista Facultad de Ingeniería. February 2019.
- Alexis Yáñez and Tomás Lara had their works accepted for poster presentation at the EVIC 2018. Santiago, Chile. December 2018.
- Our article “Group Cycling Meets Technology: A Cooperative Cycling Cyber-Physical System” has been published in the “IEEE Transactions on Intelligent Transportation Systems”. December 2018.
- Sandra Céspedes participated as Speaker in the IEEE VTS School in Latin America & Caribbean: V2X Communications with the talk “Introduction to Networking in V2X”. Bogotá, Colombia. November 2018.
- Pablo Ortega, Sandy Bolufé, Jeisson Sánchez, Tomás Lara, Adriana Arteaga, and Tomás Ferrer had their works accepted for poster presentation at the IV School of Systems and Networks SSN, in Valdivia, Chile. October 2018.
- Adriana Arteaga presented her poster "Next generation vehicular communications via interworking of DSRC and TV White Space" in the Chile WIC 2018. Valparaíso, Chile. October 2018.
- Sandra Céspedes participated as Speaker in the Festival of Engineering and Sciences, Universidad de Chile, with the talk “What is the IoT and how will it change our lives”. Santiago, Chile. October 2018.
- Our group together with the NIC Labs Chile organized the IoT Workshop with international speaker Jonathan Brewer. Santiago, Chile. October 2018.
- Sandra Céspedes gave a Research Seminar “Exploiting Network Diversity in Heterogeneous Vehicular Networks.” IEEE VTS Kitchener Distinguished Lecture. University of Waterloo, Waterloo, Canada. August 2018.
- Tomás Ferrer presented his poster “A novel MAC protocol for communication between LEO satellites and large groups of sensors intended for IoT” in the Small Satellite Conference. Logan, USA. August 2018.
- Adriana Arteaga presented her paper “Next generation vehicular communications via interworking of DSRC and TV White Space” in the IEEE ANTEM 2018. Waterloo, Canada. August 2018.
- Felipe Valle has been selected for a 1-year Internship at Cisco. San José, California. August 2018
- Alexander Ibarra has defended his Master thesis in Electrical Engineering. July 2018.
- Jeisson Sánchez has been granted a fellowship to attend the ANCS Conference to be held in Ithaca, USA. July 2018
- Maite González has been granted a fellowship to attend the TMA Conference to be held in Vienna, Austria. June 2018.
- Yusun Chang, Kennesaw State University & Georgia Tech (USA) visited our research group and gave the keynote “Improving Transportation Safety using Vehicular Networking Technology. June 2018
- Alexis Yáñez presented his paper “CaSSaM: Context-aware System for Safety Messages Dissemination in VANETs” in the IEEE COLCOM 2018, Medellín, Colombia. May 2018.
- Jeisson Sánchez presented his paper “QoS Evaluation of the Future High-Efficiency IEEE 802.11ax WLAN Standard” in the IEEE COLCOM 2018, Medellín, Colombia. May 2018.
- Sandra Céspedes gave a Research Seminar “Exploiting Network Diversity in Heterogeneous Vehicular Networks.” Universidad Icesi, Cali, Colombia. May 2018.
- Sandy Bolufé presented his paper “Dynamic control of beacon transmission rate and power with position error constraint in cooperative vehicular networks” in the ACM SAC 2018. Pau, France. April 2018
- Our project for Smart Bicycles platooning was featured by Radio Carabineros. Santiago, Chile. April 2018.
- Sandra Céspedes participated in the IETF 101 meeting, in London, UK. March 2018.
- Sandy Bolufé has his paper “Dynamic Beaconing using Probability Density Functions in Cooperative Vehicular Networks” accepted in the Special session RESIST – VEHITS Portugal. March 2018.
- Sandra Céspedes had a keynote entitled “Estudio de la Aplicabilidad de HTTP/2 al mundo de IoT” at the Summer School of Internet of Things. Universidad Nacional del Sur – Grupo Montevideo. Bahía Blanca, Argentina. February 2018.
- Pablo Ortega and Sandy Bolufé presented their paper “Experimental Evaluation of Adaptive Beaconing for Vehicular Communications” in the Workshop ADVANCE 2018. January 2018.
- Maite Gonzalez won the “Best Poster Award” for her work “Coordination of Autonomous Vehicles at Intersections with Decentralized V2V Communication” presented in the III Spring School of Network, in Pucón, CH. October 2017.
- Prof. Sandra Céspedes had a keynote entitled “IoT for the support of Smart Cities” in the III Spring School on Networks, in Pucón, CH. October 2017. Check the video here.
- Diego Londoño, Maite González, Benjamín Holloway, Alexis Yañez, and Sandy Bolufé had their works accepted for poster presentation at the III Spring School on Networks, in Pucón, CH. October 2017.
- Adriana Arteaga has been granted a fellowship to attend the 3rd IEEE ComSoc Summer School, in New Mexico, USA. July 2017
- Maite Gonzalez participated in the IETF 99Th Hackathon, in Prague, CZ. July 2017.
- Prof. Sandra Céspedes participated in the IETF 99TH meeting, in Prague. CZ, July 2017.
- Our project Platoon-based Cooperative Cycling has been featured in the British magazine Traffic Technology International. May 2017.
- The paper “Scalable Route Map for Advanced Metering Infrastructure Based on Optimal Routing of Wireless Heterogeneous Networks” has been published in IEEE Wireless Communications, IF. 8.972. April 2017.
- Diego Londoño has been selected as ISOC Fellow to attend the IETF 98th meeting in Chicago, USA. March 2017.
- A demo of our project “A prototype for a platoon-based cyclist cooperative system” has been accepted and presented at the IEEE Vehicular Networking Conference, Columbus, USA. December 2016.
- Felipe Valle presented the paper “Improving vehicular applications through network diversity”, in the conference IEEE LATINCOM, in Medellín, CO. November 2016.
- Benjamín Holloway, Diego Londoño, and Adriana Arteaga had their works accepted for poster presentation at the II Spring School on Networks, in Santiago, CH. November 2016.
- Adriana Arteaga was awarded the “Best Paper Award” for her paper “Spectrum Sensing for Vehicular Dynamic Spectrum Access”, at the II Spring School on Networks, November 2016.
- Prof. Falko Dressler visited our research group and gave the keynote “From Connected Cars to Smart Cities – On Wireless Communication Latency and Reliability” in the Workshop of Transport Systems for Smart Cities. Santiago, CH. August 2016.
- Prof. Juan Salamanca visited our research group and gave the keynote “Cooperation vs. Collaboration. User experience from a public transport system” in the Workshop of Transport Systems for Smart Cities. Santiago, CH. August 2016.
- Prof. Sandra Céspedes gave the talk “Cyber-physical systems to the service of urban transportation” in the Workshop of Transport Systems for Smart Cities. Santiago, CH. August 2016.
- Our project Community Mesh network for UKAMAU’s social movement has been featured in La Tercera and El Definido. June 2016.
- Members of our group built a community mesh network for UKAMAU’s social movement, as part of the Small Projects funding, sponsored by the Internet Society. June 2016.
- Our research group and projects have been featured in the magazine “Bits de Ciencia”. Chile. 2016.