Combating Near Far Effects of linear MMSE Multiuser Detection in coded OFDM-CDMA

Authors:

Abstract:

This paper deals with near far effects encountered in MMSE linear multiuser detection and proposes a method to mitigate the transmit-power dependent user-specific bit error rates by introducing an additional postprocessing by a combination of nonlinear parallel and successive interference cancellation. Throughout the paper we consider a quasisynchronous (i.e. asynchronous with coarse synchronization at the receiver) OFDM-CDMA uplink transmission as well as perfectly known channel impulse responses.

Document type:

Conference Paper

Publication:

Oberpfaffenhofen, Germany, 26. - 28. September 2001

Conference:

Third International Workshop on Multi-Carrier Spread-Spectrum & Related Topics (MCSS 01)

Index:

166

Files:

Paper