Performance Analysis of Iterative Channel Estimation and Multiuser Detection in Multipath DS-CDMA Channels

Abstract--This paper examines the performance of decisionfeedback-based iterative channel estimation and multiuser detection in channel coded aperiodic direct sequence code division multiple-access systems operating over multipath fading channels. First, explicit expressions describing the performance of channel estimation and parallel interference-cancellation-based multiuser detection are developed. These results are then combined to characterize the evolution of the performance of a system that iterates among channel estimation, multiuser detection and channel decoding. Sufficient conditions for convergence of this system to a unique fixed point are developed.

• Type: Journal
• Year: 2006
• Where: CORR
• Authors: Husheng Li, Sharon M. Betz, H. Vincent Poor
• Keywords: Channel Estimation, CORR 2006, Education, Iterative Channel Estimation, Multiuser Detection