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Ad hoc networks, due to their decentralized and dynamic nature, face significant challenges in terms of security and communication. These challenges are particularly pronounced due to the lack of a fixed infrastructure and the constant mobility of nodes. In this paper, we explore the implementation of secure communication protocols in ad hoc networks using public key cryptography (PKC). A detailed overview of how PKC can be used to address authentication, confidentiality and integrity issues in these networks is provided. The fundamentals of public key cryptography are discussed and various techniques for integrating it into ad hoc network protocols are presented. In addition, simulations and case studies are included to evaluate the effectiveness of these protocols, highlighting improvements in security compared to traditional methods. This article provides a comprehensive guide for the implementation of robust security solutions in ad hoc networks, adapted to their specific characteristics. [ABSTRACT FROM AUTHOR]

The article reports that there is no shortage of data on the possibility or inevitability of the absence of humans. It notes that threats of terror are meticulously calculated by government think tanks, with protocols and negotiations for climate change requiring an accurate prediction and planning of the scenarios. It adds that new trends in theory are accompanied for a series of returns or relocations of the previous generation of thinkers to their less threatening philosophical parents.

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]

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Copyright of Gerencia Tecnologica Informatica is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The present paper attempts to survey the current state of the network protocol called IPv6; starting from the evolution of IPv4 (which motivated the design of new features) to the details that are comprised in the new version of the Internet Protocol. The main sections explain the drawbacks of IPv4 that can be overcome by implementing IPv6, highlighting aspects such as security, mobility, and Quality of Service (QoS). [ABSTRACT FROM AUTHOR]

Copyright of Revista Cubana de Ciencias Informáticas is the property of Universidad de las Ciencias Informaticas (UCI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Gerencia Tecnologica Informatica is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Gerencia Tecnologica Informatica is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Gerencia Tecnologica Informatica is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Gerencia Tecnologica Informatica is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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]