Tracking fading multipath channel parameters, in CDMA systems, using a subspace-based method-an implementation perspective

Author

Sengupta, Chaitali ; Cavallaro, Joseph R. ; Aazhang, Behnaam

Author_Institution

Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA

Volume

2

fYear

1997

fDate

1-4 Sep 1997

Firstpage

734

Abstract

In this paper, we evaluate several implementation issues in the application of subspace based methods to tracking channel parameters in code division multiple access (CDMA) communication systems, in the presence of multipath fading. We focus on the behavior of singular value decomposition (SVD) based schemes while tracking the time variations in the signal subspace, due to fading. We also evaluate the application of several techniques to reduce the complexity of the computationally expensive SVD procedure, to the channel estimation problem

Keywords

code division multiple access; computational complexity; fading; land mobile radio; multipath channels; parameter estimation; singular value decomposition; time-varying channels; tracking; CDMA communication system; SVD; channel estimation problem; channel parameters tracking; code division multiple access; complexity reduction; fading multipath channel parameters; mobile radio; signal subspace; singular value decomposition; subspace-based method; time variations tracking; Application software; Binary phase shift keying; Channel estimation; Communication channels; Delay; Fading; Modulation coding; Multiaccess communication; Phase modulation; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on

Conference_Location

Helsinki

Print_ISBN

0-7803-3871-5

Type

conf

DOI

10.1109/PIMRC.1997.631177

Filename

631177