CDMA sparse channel estimation using a GSIC/AM algorithm for radiolocation

Author

Kim, Sunwoo ; Pals, Timothy ; Iltis, Ronald A. ; Lee, Hua

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA

Volume

2

fYear

2002

fDate

3-6 Nov. 2002

Firstpage

1473

Abstract

This paper considers channel parameter estimation in a sparse channel environment for radiolocation. The generalized successive interference cancellation (GSIC) algorithm is used to eliminate the multiple access interference (MAI). To adapt GSIC to sparse channels the alternating maximization (AM) algorithm is considered and the continuous time delay of each path is estimated. The time-of-arrival (TOA) of the first arrival ray is treated as the line-of-sight component. The TOAs from multiple reference nodes to a master node are then used to compute master node position.

Keywords

4G mobile communication; channel estimation; delays; interference suppression; multipath channels; multiuser detection; optimisation; radio direction-finding; radiofrequency interference; CDMA networks; CDMA sparse channel estimation; GSIC/AM algorithm; alternating maximization algorithm; channel parameter estimation; code division multiple access; continuous time delay; fourth generation wireless-based services; generalized successive interference cancellation; line-of-sight component; master node position; multipath channel simulation; multiple access interference; multiple reference nodes; radiolocation; time-of-arrival; Channel estimation; Delay effects; Delay estimation; Frequency estimation; Interference cancellation; Multiaccess communication; Multiple access interference; Parameter estimation; Power control; Protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7576-9

Type

conf

DOI

10.1109/ACSSC.2002.1197024

Filename

1197024