A fundamental feature of wireless (duplex) bidirectional communication systems is the way to separate the transmitted and received signals. We almost always find that the standard either establishes alternating them in time intervals, with the device quickly switching between transmission and reception, or transmitting them in different frequency bands and separating them by means of radiofrequency filters.
The acronym CAD comes from the English expression Computer Aided Design. It involves the use of computer technology to aid in the design of a product. In the case that concerns us now, it would involve designing housings for communications devices. In short, CAD is the drawing or graphical tool that replaces the traditional drawing board in drafting the design object.
With just a glimpse of how the telecommunications and in particular the networking market has developed over the last year, it can undoubtedly be seen that a snowball effect is occurring as the markets and the technology within these markets are rolling and becoming larger and larger. So, the predictions are that 2020 will be a year of yet more change.
A few weeks ago, we blogged about the importance of Smart Cities to promote smart sustainable cities. Half the population worldwide now lives in big cities, and this figure is expected to rise over the next ten years. Recent UN studies show that urban centers consume as much as 78% of the world’s energy and produce more than 60% of greenhouse gas emissions. This problem directly affects the quality of life of citizens; pollution, for example, produces up to 27,000 premature deaths a year in Spain. Smart Cities, therefore, are an ideal tool for developers to design applications that improve quality of life and the environment.