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The present research work shows the development and implementation of a communications protocol of superior layers, which considers the layers session, presentation and applications, which will be transported through any Ethernet frame. This protocol has the primary objective to monitor and control the communication of the nodes belonging to the HAN network (SmartGrids) in a non-invasive physical layer level, using existent data networks where the proposed protocol will co-exist. This work will begin with a brief definition of the SmartGrids and HAN networks concept, to go on with an explanation of the theoretical development of the protocol, and ending with the implementation and brief traffic analysis which will show the functioning of the protocol. [ABSTRACT FROM AUTHOR]

In wireless sensor networks applications, events occur occasionally; therefore, the design of protocols has been focused on saving energy mainly. As consequence of this protocol design strategy most of these energy-efficient protocols limit the use of wireless sensor networks to those applications where a fast response time and the bandwidth are not important. This paper proposes the LEMR-multichannel protocol (Latency, Energy, MAC and Routing, for its acronym in English). LEMR-multichannel is a communication protocol based on a multilayer design which involves the physical, medium access and network layer, which not only preserves the energy efficiency of current protocols but also coordinates the transfer of packets from source to destination in such a way that the network performance in terms of bandwidth, delay and jitter is improved significantly. The LEMR-multichannel superiority in terms of these variables is shown when it is compared with other well-known protocols (TMAC and YMAC), through several simulation experiments. [ABSTRACT FROM AUTHOR]

This paper describes the design, implementation and application of a smart sensor system based in wireless communication protocol, which was developed with the main objective of facilitate the implementation of smart places, whereby monitoring and supervision of environmental physical variables in a residence or commercial buildings. Based in this system, we want to co-help taking advantage and save electric energy, optimizing the use of the lighting systems and air conditioner only in the schedules and under pre-established conditions for the final user. The system is based in a variety of nodes o modules of sensors like temperature, humidity, light, carbon monoxide, noise and LP gas which have the ability to work collaboratively in networks with topologies like star, tree and mesh. [ABSTRACT FROM AUTHOR]

The foundation of a research project about a model of computer networks with media access control mechanism based on the IEEE standard 802.3-2005 is presented. The model draws from the theory of self-similar sets for establishing the impact level that the long-range-dependent temporary correlations have on the performance of such networks. A new method for the estimation of self-similar levels based on a variation of the Whittle estimator is postulated. [ABSTRACT FROM AUTHOR]

This research work presents an analysis of the traffic on a LAN segment heading to model its behavior and the generation of similar results by using a traffic simulation tool. To achieve this, datagrams are collected from servers supporting commonly used protocols such as SMTP1 and HTTP2. The datagrams are then used to determine the degree of self-similarity of the network segment and its probabilistic characteristics. Different tests are used for each case. Once the network segment model is obtained, a simulation tool is used to get a similar traffic environment to the real network traffic. [ABSTRACT FROM AUTHOR]

About the growth of P2P technologies, the mobile devices, mainly cell phones, PDAs y smartphones have been the representative mass of Internet connected devices of the new generation. According to this trend, Sun Microsystems released the JXTA project, a set of APIs and protocols for P2P applications development, and later it released JXME, a JXTA specialization for mobile devices. This article introduces a description about the work of the Wireless and Mobile Applications Interest Group - W@PColombia as part of the Telematics Engineering Group from University of Cauca, about P2P applications development for mobile devices with JXME. Throughout a validation prototype, it was possible to test the mobile P2P applications viability in 2.5G networks and important contributions to JXTA development community were made. [ABSTRACT FROM AUTHOR]