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Ítem Network-based distributed mobility management for network mobility(IEEE Computer Society, 2014-01-10) Chan, H. AnthonyNetwork Mobility (NEMO) Basic Support Protocol (NBSP) provides mobility supports for mobile networks. NBSP is an extension of Mobile IPv6 which employs a centralized mobility management approach. It relies on a static and centralized home agent for signaling management and data forwarding. All data traffic traverse a centralized home agent, which leads to suboptimal routing, high packet overhead and latency, especially in nested NEMO (i.e. when the mobile networks connect to one another to reach the infrastructure). In this paper, we develop a network-based distributed mobility management (DMM) scheme for non-nested and nested NEMO scenarios, with the goal of mitigating the aforementioned problems. Additionally, the proposed scheme improves the packet delivery and location update (i.e., binding update) costs. The paper discusses in detail the scheme's design, operation mechanism and the performance evaluation analysis. The numerical results of the proposed scheme show significant improvement in packet overhead and latency as well as binding update and packet delivery costs. © 2014 IEEE.Ítem An Approach to the Implementation Process of CDIO(ResearchGate, 2014-06-01) Ulloa Villegas, Gonzalo VicenteThe implementation of integrated curricula following the CDIO recommendations may result in natural and straightforward processes for mature universities. Nevertheless, a CDIO-based curricular reform can result in an overwhelming and error-prone process when universities lack experience in the consolidation of curricula that naturally integrate disciplinary learning outcomes with engineering skills. In this paper we propose a general and replicable approach to the implementation and continual improvement of integrated curricula based on CDIO; and report on our experience and lessons learned during the redefinition of the curricula of the Telematics Engineering and Computing Systems Engineering programs at Universidad Icesi, in Colombia.Ítem Comparison of data forwarding mechanisms for AMI networks(IEEE, 2012-01-16) Cardenas, A. A.Advance Metering Infrastructure (AMI) networks are often deployed under challenging and unreliable conditions. One of the issues for the transmission of data packet in these unreliable networks is the routing of packets, because routing paths may behave differently from the time when the route is discovered to the time when a data packet is forwarded. In addition, control packets may get lost and give routers an inconsistent view of the network. © 2012 IEEE.Ítem Performance evaluation of future AMI applications in Smart Grid Neighborhood Area Networks(IEEE, 2015-05-13) Ramirez, Diego F.Smart Grid constitutes the next generation of electricity delivery systems that intend to enhance reliability, efficiency, and security of the power grid. A fundamental component of this intelligent network is the Advanced Metering Infrastructure (AMI), which provides a two-way communication network between Utilities and a collection of smart meters located at the customers side. The interconnected meters form Neighborhood Area Networks that provide a platform for the deployment of customized AMI applications. In this paper, we study the operation of AMI in Colombia. While several Utilities are implementing first approximations to AMI that mostly focus on automated consumption readings, there is no certainty that traffic of different natures, corresponding to future AMI applications, can be supported by these initial deployments. As there is a lack of study of these issues, we carry out an extensive performance evaluation through simulations of current technologies delivering traffic from future AMI applications. Our simulations are based on an extensive review of the communication technologies that are currently employed for AMI in Colombia, and on a characterization of the future AMI applications. With our study we pursuit a better understanding of the primary challenges that will have to be faced for the development and enhancement of AMI networks in the country.Ítem Design and simulation of a collision notification application with geocast routing for car-to-car communications(Springer Verlag, 2015-12-01) Orozco, Ana MaríaIntroduction: Car-to-X Communications are envisioned to improve road safety, traffic efficiency, and information services through short-range and real-time systems. The enabling applications have varied requirements such as low latency, specific forwarding patterns, and reliable data exchange between vehicles and infrastructure. Hence, a cross-layer architecture for vehicular applications should be defined according to the goals of the implementation, so as to consider proper routing and dissemination mechanisms, communication protocols, and the application’s design and operation. Methods: In this context, we propose the characterization of the upper layers of a safety-oriented Car-to-Car application.