- Basic knowledge about digital communications

The student should aquire the following competences: - Understand the needs for the communication systems in the framework of the Industry 4.0 - Acquire the knowledge for satisfying the requirements of the communications systems in the Industry 4.0. - Acquire the capacity of analyze the transmission of information over the optical spectrum (visible light) - Acquire the capacity to design, analyze and optimize signal processing algorithms that perform the main functions of a digital receiver (modulation, synchronization, channel estimation / equalization, detection, decoding) in a visible light communication system. - Acquire the capacity to design and analyze complex communication systems that combine several classes of signal processing algorithms for visible light communications.

CB1: Students have demonstrated possession and understanding of knowledge in an area of study that builds on the foundation of general secondary education, and is usually at a level that, while relying on advanced textbooks, also includes some aspects that involve knowledge from the cutting edge of their field of study. CB2: Students are able to apply their knowledge to their work or vocation in a professional manner and possess the competences usually demonstrated through the development and defence of arguments and problem solving within their field of study. CG3: Knowledge of basic and technological subject areas which enable acquisition of new methods and technologies, as well as endowing the technical engineer with the versatility necessary to adapt to any new situation. ECRT6: Ability to conceive, develop, organize and manage telecommunication networks, systems, services and structures in residential (home, city, digital communities), business and institutional contexts, responsibility for its set up, continuous improvement, as well as determining social and economic impact. ETEGISC2: Ability to apply techniques on which telecommunication networks, services and applications are based in fixed environments as well as mobile, personal, local or long distance, with different bandwidths, including telephone, radio broadcasting, television and data, from the point of view of transmission systems. ETEGISC5: Ability to select antennas, equipment and transmission systems, guided and non-guided wave propagation, by electromagnetics, radiofrequency and optics means and the corresponding management of radio electronic space and frequency allocation. RA1: Knowledge and Understanding. Knowledge and understanding of the general fundamentals of engineering, scientific and mathematical principles, as well as those of their branch or specialty, including some knowledge at the forefront of their field. RA3: Design. Graduates will have the ability to make engineering designs according to their level of knowledge and understanding, working as a team. Design encompasses devices, processes, methods and objects, and specifications that are broader than strictly technical, including social awareness, health and safety, environmental and commercial considerations. RA4: Research. Graduates will be able to use appropriate methods to carry out detailed research and studies of technical aspects, commensurate with their level of knowledge. The research involves bibliographic searches, design and execution of experiments, interpretation of data, selection of the best proposal and computer simulation. May require consultation of databases, standards and security procedures. RA5: Applications. Graduates will have the ability to apply their knowledge and understanding to solve problems, conduct research, and design engineering devices or processes. These skills include knowledge, use and limitations of materials, computer models, process engineering, equipment, practical work, technical literature and information sources. They must be aware  of all the implications of engineering practice: ethical, environmental, commercial and industrial.

Unit 1. Introduction During the introduction, the framework of the visible light communications and their role in the radioelectric spectrum is presented. Within this framework the need for exploiting alternative bandwidth is shown. After that, the communication needs of the smart industry and how the visible light communications are explained. Finally, a brief overview of the standards that regulate the visible light communications is carried out. Unit 2. Propagation of the visible light Design of a transmission scheme for visible light communications and presentation of its elements, i.e., LED lights, photodiodes, amplifiers¿ Description of the point-to-point channel and the effects of the diffuse components within industrial environments. Highlight the difference between the free-space optical channel and the radiofrequency channel. Unit 3. Modulation and detection of information through visible light communications Analysis and implementation of modulation, signal detection and decoding schemes for visible light communications. Single carrier and multi-carrier (OFDM) schemes. Management of the constraints given by the features of the optical channel. Multi-transmitters (MIMO) optical schemes. Unit 4. Geolocation based on visible light communication Implementation of geolocation services based on the deployment of LED light in industrial environment. Modeling and accuracy of the geolocation services. Unit 5. Internet of Things based on visible light communications Management of sensors networks in industrial environment through visible light communications. Compatibility with traditional standards based on radiofrequency and grouping of the set of communications through and optical gateway. Internet of Thing as required platform for obtaining realistic datasets that feed artificial intelligence algorithms. Unit 6. Practice, practical case Study of practical case employing the knowledge obtained through the subject. Use of Matlab for simulations.

Theoretical lessons and problems The lessons are composed of theory and practical examples with the aim of providing a better understanding. Lab practices Simulation of the practical cases described during the theoretical lessons. Practica case. A practical case in the framework of the optical communications for the industry 4.0 is proposed for simulation and analysis.