title: Multiuser interference cancellation in time-varying channels.
abstract: In this letter, an adaptive time-reversal multichannel combiner is embedded within an iterative successive interference cancellation receiver. With the addition of matching pursuit, a sparse channel estimation technique, the combined receiver is shown to provide both temporal interference cancellation as well as spatial interference suppression in decoding simultaneous transmissions from separate users in a time-varying underwater acoustic environment. Experimental data collected during the KAM11 experiment illustrates that for a two-user multiple-access system, multiuser separation can be achieved.
authors.affiliation: Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093-0407, USA scho@ucsd.edu
authors.forename: S E
authors.initials: SE
authors.lastname: Cho
authors.forename: H C
authors.initials: HC
authors.lastname: Song
authors.forename: W S
authors.initials: WS
authors.lastname: Hodgkiss