Least Squares Based Receive Antenna Selection for UWB Systems in the presence of ISI and NBI

In this paper, receive antenna selection technique is discussed for Ultra Wideband (UWB) systems with linear Minimum Mean Square Error (MMSE) equalization in the presence of Inter Symbol Interference (ISI) and Narrow Band Interference (NBI). Given UWB multipath indoor channel with shadowing effects proposed in IEEE 802.15.3a channel model recommendation, Least Squares (LS) based receive antenna selection technique is shown to be an effective method to achieve improved performance for linear MMSE receiver in the presence of unknown NBI. Moreover, given finite training sample support, Diagonal Loading (DL) technique is incorporated into LS estimation process to insure the robustness of antenna selection and channel equalization.