Abstract
Wideband Code Division Multiple Access (WCDMA) systems and Orthogonal Frequency Division Multiple Access (OFDMA) technique were the basic of modern wireless systems aimed to provide enriched services. But the channel impairments always put a limit on modern systems that also includes AC-MIMO Radio, 802.11ac and LTE/VoLTE. Here, the conduct of WCDMA and OFDMA primarily based totally structures is analyzed via way of means of widely recognized primary Gaussian Approximation (GA) in which interference and noise to the gadget is generated via way of means of suggest and variance approximations of noise power. In order to generate the faded transmitted signal Weibull, Rayleigh, Rician and Nakagami distributions have been applied to systems. OFDMA and WCDMA system performances for different fading environments have been observed by error rate graphs. It is validated that inclusion of fading in the system increases error rate and the performance of OFDMA system is much better than WCDMA system.
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