Three-dimensional modeling, simulation and evaluation of Device-to-Device channels

Device-to-Device (D2D) communication is one of new technologies that appears to be a promising component in next generation communications. Due to the special characteristics of D2D channels, there is a need to establish and evaluate new channel models that help realize the potential advantages of D2D communication. In this paper, a three-dimensional two-cylinder model is introduced, the spatial cross-correlation and Doppler power spectral density function are derived. The impacts of special channel parameters on D2D channels are simulated and evaluated. The results can be used to propose general D2D channel models for various scenarios, for better design of D2D systems and fair comparison of different D2D technologies.