Mathematical model and performance analysis of an improved hybrid code acquisition algorithm in DS-SS systems

Author

Lee, Seongjoo ; Jaeseok Kim

Author_Institution

Comm. ASIC Lab., Yonsei Univ., Seoul, South Korea

Volume

1

fYear

1999

fDate

1999

Firstpage

565

Abstract

We present a mathematical model and a performance analysis of an improved hybrid code acquisition algorithm, which applies the early rejection mode in conventional hybrid search method in direct sequence spread spectrum (DS-SS) systems. The mean code acquisition time is derived and analyzed for the acquisition algorithm. We also compare the mean code acquisition time of the improved hybrid search algorithm with those of conventional ones under IMT-2000 channel models. The result indicates that the mean code acquisition time of improved hybrid search algorithm is reduced by about 60% than those of conventional ones

Keywords

land mobile radio; search problems; signal detection; spread spectrum communication; synchronisation; DS-SS systems; IMT-2000 channel models; coincidence detection; direct sequence spread spectrum; early rejection mode; improved hybrid code acquisition algorithm; improved hybrid search algorithm; mathematical model; mean code acquisition time; performance analysis; Algorithm design and analysis; Application specific integrated circuits; Electronic mail; Erbium; Hardware; Mathematical model; Performance analysis; Phase detection; Search methods; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818477

Filename

818477