Orthogonal on-off BPSK: a convenient signaling scheme for near-far resistant detection in DS/CDMA

Author

Zheng, Fu-Chun ; Barton, Stephen K.

Author_Institution

Dept. of Electr. & Electron. Eng., Victoria Univ. of Technol., Melbourne, Vic., Australia

Volume

47

Issue

3

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

969

Lastpage

976

Abstract

This paper proposes a convenient signaling scheme-orthogonal on-off BPSK (O³BPSK)-for near-far (NF) resistant detection in asynchronous direct-sequence code-division multiple-access (DS/CDMA) systems (uplink). The temporally adjacent bits from different users in the received signals are decoupled by using the on-off signaling, and the original data rate is maintained with no increase in transmission rate by adopting an orthogonal structure. The detector at the receiver is a one-shot linear decorrelating detector, which depends upon neither hard decision nor specific channel coding. The application of O³ strategy to the differentially encoded BPSK (D-BPSK) sequences is also presented. Finally, some computer simulations are shown to confirm the theoretical analysis

Keywords

code division multiple access; correlation theory; phase shift keying; receivers; signal detection; spread spectrum communication; telecommunication signalling; D-BPSK sequences; DS/CDMA; O³ strategy; O³BPSK; asynchronous direct-sequence code-division multiple-access; data rate; differentially encoded BPSK; near-far resistant detection; on-off signaling; one-shot linear decorrelating detector; orthogonal on-off BPSK; orthogonal structure; received signals; receiver; signaling scheme; transmission rate; uplink; AWGN; Application software; Binary phase shift keying; Channel coding; Computer simulation; Decorrelation; Delay; Detectors; Multiaccess communication; Noise measurement;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.704851

Filename

704851