Rake Receiver Improvement for Residual Interference Cancellation in UWB Context

Abstract—In the context of PAM Time-Hopping/Direct Sequence Impulse Radio Ultra Wide Band (IR-UWB), a residual interference occurs at the output of the Rake Receiver when realistic multipath propagation channel is considered even if a large guard-time interval is used. As a consequence, the performance is limited and exhibits BER floor. In this paper, we explicitally explains what causes such a residual interference. Secondly, we propose a simple way to modify the Rake receiver in order to totally remove this residual interference. The results are illustrated by simulations that validate the proposed method.

• Type: Conference
• Year: 2007
• Where: VTC
• Authors: Anne-Laure Deleuze, Christophe Le Martret, Philippe Ciblat
• Keywords: Rake Receiver, Realistic Multipath Propagation, Residual Interference, VTC 2007