Search results for "gateway"

Reports of the AAAI 2010 Fall Symposia

2011

The Association for the Advancement of Artificial Intelligence was pleased to present the 2010 Fall Symposium Series, held Thursday through Saturday, November 11-13, at the Westin Arlington Gateway in Arlington, Virginia. The titles of the eight symposia are as follows: (1) Cognitive and Metacognitive Educational Systems; (2) Commonsense Knowledge; (3) Complex Adaptive Systems: Resilience, Robustness, and Evolvability; (4) Computational Models of Narrative; (5) Dialog with Robots; (6) Manifold Learning and Its Applications; (7) Proactive Assistant Agents ; and (8) Quantum Informatics for Cognitive, Social, and Semantic Processes. The highlights of each symposium are presented in this report.

Channel Switching Protocols Hinder the Transition to IP World: The Pentagon Story

2019

In this paper, we target the strategy for telecommunications architectures during the transition to the IP-only models. The paper discusses the shifting from circuit switching to packet switching in telecommunications. Particularly, we analyze the coexistence of circuit switching and packet switching technologies in American military communications where each warfare object should have own IP address. The paper discusses the role of multifunction Soft Switches (MFSS). This Soft Switch plays the role of a media gateway between TDM channels and IP channels. As a case, we are passing through the transformation from SS7 signaling to internet protocol, ISDN-based government Defense Red Switch Ne…

A Network Protocol to Enhance Robustness in Tree-Based WSNs Using Data Aggregation

2007

This paper proposes a data gathering strategy for wireless sensor networks and an implementation based on the IEEE 802.15.4 standard. The algorithm combines the benefits of single-path and multi-path routing strategies in a hybrid solution which makes use of alternative paths when necessary. We adopt a caching and retransmission technique, which exploits some peculiar features of data aggregation, with the use of implicit acknowledgments of reception. The paper also discusses simulation results that show how the mentioned techniques, combined with exploitation of the features of the IEEE 802.15.4 standard have been used to obtain an efficient protocol that takes energy consumption into acco…

Título: Dieta, drogas y cerebro. Subtítulo:¿Podría ser la comida ultraprocesada una puerta de entrada a la adicción?

2020

Los alimentos altos en grasas y azucares nos resultan placenteros porque producen una estimulacion del circuito de recompensa, el mismo que activan las drogas. En un contexto en el que una dieta no saludable y el consumo de drogas son habituales desde la adolescencia, es importante investigar cuales son sus consecuencias. Este articulo presenta la relacion existente entre la ingesta de comida especialmente sabrosa, el sistema de refuerzo cerebral y el consumo de drogas. Estudios con modelos animales han mostrado que la ingesta intermitente de dieta rica en grasa durante la adolescencia incrementa el consumo de cocaina y etanol. La investigacion reciente evidencia el papel fundamental de la …

Fast Secure Routing for Highly Mobile Large-Scale Ad-Hoc Vehicular Networks

2009

In highly mobile large-scale vehicular ad-hoc networks, routing protocols must be fast and efficient in terms of low routing discovery delay and communication overhead to support the applications such as car talk. Such requirement becomes more difficult to achieve when inducing security enhancement to tackle the authentication of routing messages. In this paper, we propose a lightweight (fast) secure routing protocol, Secure Proactive Tree-based Routing (SPTR) to hit these two points. SPTR makes use of the characteristics of VANET networks, that is, the traffic originates from or terminates at the gateway or road side unit. SPRT also takes advantages of certificate-less ID-based cryptograph…

Imagining Europe's Borders : Commemorative Art of Migrant Tragedies

2016

Internet of Things : a gateway centric solution for providing IoT connectivity

2016

The Internet of Things (IoT) is revolutionising the traditional Internet by extending it with smart everyday objects. Wearables, smart grids and home automation systems are just a few examples of the IoT. A noteworthy point is that the amount of devices connected to the Internet will rapidly grow with the IoT. The IoT typically involves devices that are constrained in terms of energy, memory and processing resources. Therefore, they also limit applying the existing Internet protocols to the IoT. New protocols have been designed for the IoT, all the way from the physical layer, to the application layer. This thesis presents an implementation for an IoT gateway, which enables connectivity to …

Performance of LoRa technology: link-level and cell-level performance

2020

Abstract LoRa is a chirp spread spectrum technology that is becoming very popular for low-power wide-area networks, with high-density devices. In this chapter, we study the capacity of LoRa in rejecting different interfering signals. First, we analyze LoRa modulation numerically demonstrating that channel captures appear easily and that collisions between packets modulated with different spreading factors (SFs) are not uncommon. We validate such findings in experiments based on commercial devices and software-defined radios. Second, we model the network capacity obtainable in a typical LoRa cell: we show that high SFs can be seriously influenced by inter-SF collisions and that fading has a …

Report WS1. Il binomio “Città porto”: conflitti e sinergie multilivello fra trasformazioni urbane e competitività globale

2012

The paper collects the best practices and considerations from two sessions of the workshop “Città porto: la dimensione multipla della pianificazione spaziale”. The leitmotiv of the first session’s reporters has been: the harbour, as urban gateway, origins conflicts, synergies and moments of cooperation with the urban structure. They’ve referred about North and South European harbours of medium level that, for advanced technical and logistic features and strategies of intervention, represent a substantial landmark for similar realities. Genoa, Rotterdam, Hamburg and Bilbao rehabilitation plans, despite their own peculiarities, have in fact dragged aspects of the industrial sector, urban desi…

Storm

2003

We present Storm, a storage system which unifies the desktop and the public network, making Web links between desktop documents more practical. Storm assigns each document a permanent unique URI when it is created. Using peer-to-peer technology, we can locate documents even though our URIs do not include location information. Links continue to work unchanged when documents are emailed or published on the network. We have extended KDE to understand Storm URIs. Other systems such as GNU Emacs are able to use Storm through an HTTP gateway.