Alternative fading channel structures and the analysis of their effects on communication systems

In wireless communication systems channel effects have great influences on the performance of communication. Fading channels may cause larger distortions on the transmitted signal compared to the widespread channel model white Gaussian noise channel. The Doppler spread also has impacts on the fading channels. In this work, the analysis of the effects of various fading channels on the communication systems has been studied. Various fading channels are investigated in the first-order and second-order statistics. Channel simulations have been realized that gives approximately the same statistical features as the real channel. The channel simulations are realized by the method of inverse discrete Fourier transform which already exists in literature. Various fading channel applications are performed by using this simulation. In the fading channel application at first a cosine signal is transmitted and the channel effects are investigated. Then another application is simulated by transmitting a BPSK modulated signal through these various fading channel models and performance analysis have been investigated. Keywords: Fading channel, Channel statistics, Doppler spread, Channel delay profile, Maxsimum excess delay, Fast fading, Slow fading, Flat fading, Frequency-selective fading, Rayleigh distribution.