Mobility

Design of Pre-Rake DS-UWB Downlink With Pre-Equalization

Date Added: Jul 2011
Format: PDF

The authors consider the design of Ultra-WideBand (UWB) systems that enable high data rate communications for short-range wireless applications. In particular, they consider the downlink of a Direct Sequence UWB (DS-UWB) system in which the base station is equipped with multiple antennas and employs pre-rake combining, while each user employs a simple single antenna receiver. They propose the use of multiuser filters for the purpose of pre-equalization at the transmitter in order to mitigate the combined effects of Inter-Symbol Interference (ISI) and Multi-User Interference (MUI) that are generated at the receivers as a result of the wideband nature of the users' channels.