TY - JFULL AU - Xia Liu and Marek E. Bialkowski PY - 2009/5/ TI - Effect of Channel Estimation on Capacity of MIMO System Employing Circular or Linear Receiving Array Antennas T2 - International Journal of Electronics and Communication Engineering SP - 959 EP - 970 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/1523 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 28, 2009 N2 - This paper reports on investigations into capacity of a Multiple Input Multiple Output (MIMO) wireless communication system employing a uniform linear array (ULA) at the transmitter and either a uniform linear array (ULA) or a uniform circular array (UCA) antenna at the receiver. The transmitter is assumed to be surrounded by scattering objects while the receiver is postulated to be free from scattering objects. The Laplacian distribution of angle of arrival (AOA) of a signal reaching the receiver is postulated. Calculations of the MIMO system capacity are performed for two cases without and with the channel estimation errors. For estimating the MIMO channel, the scaled least square (SLS) and minimum mean square error (MMSE) methods are considered. ER -