CSMA and media access control

CSMAIf we divide a generic communication system into its most simple parts, we can distinguish four elements: a sender, a receiver, a message to communicate and a medium on which to do so. One of the problems that arises from establishing the communication is access to the medium. When there are multiple users or stations sharing the same communication medium or channel, access control is required to avoid two or more stations transmitting at the same time, which can cause interference and even make the communication impossible.

(more…)

Cristian Garcia: Computer Engineer in the Teldat R&D department. Within this department he works as a software developer.

5 trends that will transform telecommunications in 2020

telecommunications We are approaching the end of 2019 and the beginning of a new decade in which we are expecting amazing technological innovation capabilities. The last few years have seen repeated reports of trends, with much talk of 5G, cloud services, blockchain, edge computing, IoT, and so forth.

(more…)

Francisco Navarro: Francisco Navarro, graduated in Physical Science, is a Business Line Manager working within the Marketing Department and responsible for the Teldat Corporate Routers.

High-speed Internet from space: The Starlink network

SatelliteAccessing the Internet from space is not new, with many companies (OneWeb, Space Norway, Telesat, etc.) now offering it. More recently, however, a new participant has emerged on the scene promising something different – Starlink. SpaceX’s plan is to create a network of 12,000 satellites that fly from 350 to 1160 km above our heads and provide fast Internet access using lasers.

(more…)

Fernando Hernández: Fernando Hernández Sánchez is a Computer Engineer (Universidad Politécnica de Madrid) who works in the R&D department. Within that department he is part of the Cloud Appliances group as a Software Engineer.

DTLS security over UDP

dtlsDTLS (Datagram transport Layer Security) is a protocol that provides privacy for UDP communications. To understand DTLS, you first need to understand UDP.

(more…)

Jesus Cristina: Computer Engineer in the Teldat R&D department. Within this department he works as Software Developer

Robot Framework and test automation

Robot FrameworkProcess automation is becoming increasingly important when developing new software and hardware, as a means to detect implementation failures, carry out behavioral tests involving resources and scenarios, etc. On top of saving employees a great amount of time, it is a quick and easy method that is highly reliable when compared to the alternative: specific tests that have to be run manually. As a result, well-known and highly effective infrastructures (like Robot Framework) have been created.

 

(more…)

Alvaro Molinero: Telematics Engineeer in the Teldat R&D Department. Within this department he is responsible for the development of tests for the Automatic Error Detection in OSDx.

Open Source Software Licenses

OPEN SOURCE CONCEPT

A few weeks ago I wrote a post on the Teldat blog about open source software. I explained how we were seeing the tremendous growth in the use of open source software in recent years. So much so, that the top acquisitions within the technology sector in last year have been for open source software. In that post, I gave an explanation of the advantages and disadvantages to using open source software in comparison to proprietary software or closed source software. However, as I explained then, the trends all indicate that the open source software market is going to increase at a fast rate, hence I have decided to write a new post in order to go one step deeper into this market and explain the important role that licenses play within these types of software and the main differences between them.

(more…)

Javier García: Business Studies & Marketing. Online Marketing Manager within the Teldat Corporate Marketing department