An integrated simulation environment for design and analysis of mobile communication systems

A simulation environment for the analysis and design of RF communication systems from the link level down to the nonlinear circuit level was developed. The integrated simulation environment supports block diagram representations, multirate sampling, and an interactive graphical user interface. It permits the incorporation of sophisticated user models of individual blocks, in a mixed time-domain and frequency-domain environment. The simulation of a multichannel mobile communication system is presented. Large-signal nonlinear distortion effects due to the RF receiver front end, such as harmonic distortion, intermodulation distortion, and spurious noise, were obtained using the integrated link-level and circuit-level simulation environment. Results of large-signal effects on adjacent channel interference and signal-to-noise ratio are also presented.