Orthogonal on-off BPSK: a convenient signaling scheme for near-far resistant detection in DS/CDMA
Zheng, F.-C. and Barton, S.K. (1998) Orthogonal on-off BPSK: a convenient signaling scheme for near-far resistant detection in DS/CDMA. IEEE Transactions on Vehicular Technology, 47 (3). pp. 969-976. ISSN 0018-9545
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To link to this article DOI: 10.1109/25.704851
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.
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