Multipath channel estimation for asynchronous random-code-division multiple-access

Author

Alexander, Paul D. ; Grant, Alex J.

Author_Institution

Inst. for Telecommun. Res., Univ. of South Australia, The Levels, SA, Australia

Volume

3

fYear

1997

fDate

4-7 May 1997

Firstpage

1609

Abstract

An estimator for slowly varying multipath channels for each user in a random-code-division multiple-access communications system is constructed and analysed. The estimator requires no training sequence and we compare the performance to the case when such a sequence is available. We show that mean square error in estimation decreases as the inverse of the sample size. It is also shown that the proposed method performs better than other known techniques applied to equivalent fixed-code systems

Keywords

code division multiple access; codes; land mobile radio; least mean squares methods; multipath channels; parameter estimation; radio networks; spread spectrum communication; asynchronous random code division multiple access; fixed code systems; mean square error; mobile radio network; multipath channel estimation; performance; random spreading codes; sample size; slowly varying multipath channels; training sequence; Australia; Channel estimation; Communication systems; Correlators; Decoding; Land mobile radio; Mean square error methods; Multiaccess communication; Multipath channels; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.605830

Filename

605830