The impact of AOA energy distribution on the spatial fading correlation and SER performance of a circular antenna array

In this paper, we investigate the spatial fading correlation and symbol error rate (SER) performance of M-ray phase shift keying (MPSK) with maximal ratio combining (MRC) for a circular antenna array for two types of angle of arrival (AOA) energy distributions: a uniform AOA energy distribution and a Gaussian AOA energy distribution. The spatial fading correlation and SER performance of a circular antenna array are the functions of radius of circular array, the AOA energy distribution, and the central angle of arrival. Analysis shows that the SER performance is mainly determined by the eigenvalues of the fading correlated matrix. Results show that the two AOA energy distributions give the similar spatial fading correlation and SER performance for the same scattering angle.