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Error Probability Evaluation of a Novel Cooperative Communications Signaling Strategy in CDMA Systems  

Khuong Ho-Van (Department of Electrical Engineering, University of Ulsan)
Kong Hyung-Yun (Department of Electrical Engineering, University of Ulsan)
Publication Information
Journal of Communications and Networks / v.8, no.3, 2006 , pp. 257-266 More about this Journal
Abstract
The powerful benefits of multi-antenna systems can be obtained by cooperative communications among users in multiple access environments without the need for physical arrays. This paper studies a novel cooperative signaling strategy that achieves high performance and low implementation complexity for synchronous code division multiple access (CDMA) wireless mobile networks. The validity of the proposed strategy under slow flat Rayleigh fading channel plus additive white Gaussian noise (AWGN) is verified through closed-form error probability expressions and MonteCarlo simulations. A variety of analytical results reveal that the new cooperative strategy significantly outperforms direct transmission subject to the same spectral efficiency and transmit power constraint.
Keywords
Additive white Gaussian noise (AWGN); code division multiple access (CDMA), cooperative communications; Rayleigh fading;
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