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

  • Fu Chun Zheng*
  • , Stephen K. Barton
  • *Corresponding author for this work
  • Victoria University
  • University of Leeds

Research output: Contribution to journalArticlepeer-review

Abstract

This paper proposes a convenient signaling scheme -orthogonal on-off BPSK (O3BPSK)-for near-far (NF) resistant detection in the asynchronous direct-sequence code-division multiple-access (DS/CDMA) systems (up link). 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 oneshot 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.

Original languageEnglish
Pages (from-to)969-976
Number of pages8
JournalIEEE Transactions on Vehicular Technology
Volume47
Issue number3
DOIs
StatePublished - 1998
Externally publishedYes

Keywords

  • CDMA
  • Linear decorrelating detector
  • Multiuser detection

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