Wi-Fi Fundamentals

Wi-Fi Fundamentals


About this lesson

The course discusses the basics of radio systems with emphasis on Wi-Fi. We go step by step from the foundations of the radio transmission, explaining the basic nomenclature and the theory behind it, like frequency, spectrum, bandwidth, waveform, etc. Then we discuss the overall radio system including transmitter & receiver, antennas and MIMO schemes. This is followed by discussion on the radio channel, decomposing it to individual elements and their impacts on the transmitted signal including: pathloss, shadowing, multipath, interference and noise. Then, we move to the transmitter chain explaining coding, modulation and transmission schemes. Here we put emphasis on explaining OFDM transmission and CSMA. The common denominator for all those aspects is Wi-Fi, meaning that during explanation of a given part, we provide practical parameters and implications especially for Wireless LAN. Moreover, we show the evolution of Wi-Fi standards, starting from initial releases: 802.11a/b/g, up to modern versions: 802.11n/ac/ad.

The advantage of this course is that the technical aspects, although sometimes complex, are explained in an easy manner with analogies and practical examples. In this training you will be also able to take quizes to check your understanding of the topics. It is designed by two instructors: Mateusz Buczkowski and Marcin Dryjanski, both having hands-on experience in developing wireless systems as R&D engineers. Also, both of them have extensive experience in teaching those topics as lecturers and professional technical trainers, as well as through publishing articles and books.