Performance analysis of wireless diversity techniques over different fading channel environments

With the acceleration of 5G and beyond studies and increasing research in this field, various modulation schemes, channel models, and diversity methods are being studied on factors such as power, bandwidth, and efficiency. In recent years, it is seen that different mathematical derivations have been made for channel models and that models have been created that reveal wireless channel environments successfully. In this thesis work; The Fisher-Snedecor F channel model, hexagonal quadratic amplitude modulation for the maximal ratio combining technique and hexagonal quadrature amplitude modulation analysis of a system with a cascade structure in channels with fluctuating two-ray fading were performed. As a result of the analyses, error statements were derived and the accuracy of these statements was shown by numerical results. Thus, for the first time in the literature, hexagonal quadrature amplitude modulation error expressions were derived for these system models and the accuracy of these derived expressions was tried to be shown by simulations. In addition, the achievements of the results obtained are shown with the help of the Mathematica and MATLAB software programs. Key Words: Cascaded FTR fading, error probability analysis, HQAM technique, Fisher-Snedecor F channel model, maximal ratio combining