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One-Shot Near-Far Resistant Detection Scheme for DS/CDMA Systems over Nakagami-m Fading Channel

Jyh-Horng WEN, Jia-Shin JENG

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Summary :

A convenient signaling scheme, termed orthogonal on-off BPSK (O3BPSK), along with a simple one-shot linear decorrelating detector (LDD) has been proposed by Zheng and Barton as a technique for near-far resistant detection in the asynchronous DS/CDMA systems. The temporally adjacent bits from different users in the received signals are decoupled by using the on-off signaling, and the data rate is maintained with no increase in transmission rate by adopting an orthogonal structure. The system performance of this signaling scheme in terms of bit error rate (BER) has been analyzed over an AWGN channel by Zheng and Barton. In this paper, we further study the system performance over Nakagami-m fading channel. A closed form for the BER of such a scheme is successfully derived. Numerical results show that the O3BPSK signal scheme along with the LDD receiver still offers a good near-far resistant property over Nakagami-m channel.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E81-A No.11 pp.2298-2303
Publication Date
1998/11/25
Publicized
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Type of Manuscript
Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
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