Abstract
The phase noise (PHN) is one of the primary factors that limits the achievable performance in many communication systems. Recently, the authors have proposed an effective 2-paths PHN compensation scheme (L. Zhao et al, Globecom 2003). The approach uses the information provided by an additional signal path added to the receiver front-end to better estimate the PHN. There are generally two types of PHN found in the literature: stationary PHN and Wiener PHN. Previous results have shown the effectiveness of the 2-paths scheme for stationary PHN. This paper addresses the applicability of the 2-paths scheme for combating Wiener PHN. It shows that simple modifications of the 2-paths approach work effectively for Wiener PHN as well. PHN estimation error and signal-to-noise ratio (SNR) after PHN compensation are analyzed. Simulation results for a 64-QAM system demonstrate the significant improvement over conventional approaches in the presence of Wiener PHN.
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