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Title of Journal: Wireless Pers Commun

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Abbravation: Wireless Personal Communications

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Springer US

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DOI

10.1002/scin.5591780406

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1572-834X

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Smart Cooperative System Using Orthogonal Signalin

Authors: SeungJun Yu WonJun Choi HyoungKyu Song
Publish Date: 2015/02/24
Volume: 83, Issue: 1, Pages: 663-672
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Abstract

In this paper an efficient cooperative transmission scheme with signal space diversity is proposed for twouser cooperative systems In contrast with the conventional cooperative scheme based on orthogonal signaling the proposed scheme obtains signal space diversity by utilizing rotated constellation Because the proposed scheme provides much information to receiver in decoding process a receiver can decode information more accurately Therefore the proposed scheme improves the bit error rate performance in severe fading channel environments Simulation results demonstrate that the performance of the proposed scheme is especially superior to the performance of the conventional scheme in low interuser channel quality

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