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 language | English |
|---|---|
| Pages (from-to) | 969-976 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Vehicular Technology |
| Volume | 47 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1998 |
| Externally published | Yes |
Keywords
- CDMA
- Linear decorrelating detector
- Multiuser detection
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