Spatio-temporal array-receiver for multipath tracking in cellular CDMA

Author

Affes, Sofiène ; Mermelstein, Paul

Author_Institution

INRS-Telecommun., Quebec Univ., Montreal, Que., Canada

Volume

3

fYear

1997

fDate

8-12 Jun 1997

Firstpage

1340

Abstract

Efficient multipath tracking is a crucial requirement for high performance in asynchronous cellular CDMA. Despite the recent increased focus on use of array receivers at the base stations, the problem of time-delay estimation for individual paths has not been specifically addressed. In this contribution we propose simple and fast multipath tracking procedures in a nonstationary CDMA environment, using the spatio-temporal array-receiver (STAR). Both the time-delays and their number are tracked in time in a partially blind scheme with a low order of computational complexity. We show by simulations the tracking capability of STAR at a high interference level

Keywords

array signal processing; cellular radio; code division multiple access; computational complexity; land mobile radio; multipath channels; radio receivers; radiofrequency interference; tracking; STAR; asynchronous cellular CDMA; cellular radio; computational complexity; high interference level; multipath tracking; nonstationary environment; partially blind scheme; simulation; spatio-temporal array-receiver; time-delay estimation; Base stations; Blind equalizers; Business; Fading; Interference; Multiaccess communication; Multipath channels; Testing; Timing; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1997. ICC '97 Montreal, Towards the Knowledge Millennium. 1997 IEEE International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-3925-8

Type

conf

DOI

10.1109/ICC.1997.595007

Filename

595007