Timing estimation of code division multiple access multiuser communication

Author

Chang, Cha´O Ming ; Chen, Kwang-Cheng

Author_Institution

Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

Volume

3

fYear

1997

fDate

4-7 May 1997

Firstpage

2138

Abstract

Multiuser detection for code division multiple access direct sequence spread spectrum (CDMA-DSSS) usually requires the timing information of all users. However, in earlier study of multiuser CDMA communication, the determination of the timing was not well understood. We derive the optimum timing estimator and conclude the necessity of separating the timing estimation process into acquisition and tracking. Moreover, we develop and analyze the reduced-complexity optimum timing estimator

Keywords

Gaussian channels; code division multiple access; optimisation; parameter estimation; pseudonoise codes; signal detection; spread spectrum communication; synchronisation; timing; tracking; AWGN channel; CDMA multiuser communication; acquisition; code division multiple access; direct sequence spread spectrum; multiuser detection; performance analysis; reduced-complexity optimum timing estimator; sychronisation; timing estimation; timing information; tracking; Amplitude estimation; Detectors; Maximum likelihood detection; Maximum likelihood estimation; Multiaccess communication; Multiuser detection; Phase estimation; Spread spectrum communication; Testing; Timing;

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.1997.605990

Filename

605990