A rapid synchronization scheme for DS-SS packet data transmission

Author

Zarrabizadeh, Mohammad H. ; Sousa, Elvino S.

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

Volume

2

fYear

1995

fDate

14-16 Nov 1995

Firstpage

1297

Abstract

A new rapid acquisition scheme utilizing differentially coherent detection and PN matched filter is proposed. The system operates in burst mode transmission and the synchronization is achieved using a fixed preamble at the beginning of each data packet. The preamble is differentially modulated by a unique bit pattern, marker, which make it possible to perform code and frame synchronization simultaneously. Unlike other previous schemes, all preamble bits equally contribute to the acquisition process. The system performance measured in terms of packet loss probability for a given packet and preamble length. It is shown that this scheme greatly outperforms the conventional search-lock acquisition schemes which utilize non-coherent detection

Keywords

demodulation; filtering theory; matched filters; packet switching; probability; pseudonoise codes; signal detection; spread spectrum communication; synchronisation; DS-SS packet data transmission; PN matched filter; acquisition process; bit pattern; burst mode transmission; code synchronization; data packet; differentially coherent detection; fixed preamble; frame synchronization; marker; noncoherent detection; packet length; packet loss probability; preamble length; rapid synchronization; search-lock acquisition; system performance; Communication networks; Data communication; Length measurement; Loss measurement; Matched filters; Modulation coding; Performance analysis; Phase detection; System performance; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE

Print_ISBN

0-7803-2509-5

Type

conf

DOI

10.1109/GLOCOM.1995.502611

Filename

502611