Non-ideal distortion effects in single and two layer modulation schemes

In wireless communication systems, non-ideal effects in transmitter and receiver circuits and in the channel cause non-ideal distortions in the phase and amplitude of transmitted signal. The power amplifiers and pulse shaping in the transmitter side, the attenuation and delays in the channel, synchronization errors and estimation errors in the receiver side are effecting performance of the system. In this work, the non-ideal effects that can occur throughout physical layer of a wireless communication system are modeled. In every stage, performance of signal transmission is studied in terms of bit/symbol/packet error rates of all single and hierarchical modulations that can be used in the system, and the best performance parameters, models and methods are determined. Finally, an overall system design and simulation that is consistent with the studied stages is performed. With the data acquired by this work, a library that comprises bit/symbol/packet error rates of the single and hierarchical modulations in the pyhsical layer of a wireless communications system is formed. Thus, the required parameters for the conseptual design of the project that this thesis is in the scope of and fund of knowledge for future is aimed.