Abstract
In decode-and-forward (DF) MIMO two-way relay systems, the transmission schemes are designed and the closed-form expressions for the outage probability and average symbol error rate (ASER) of the twoway relay system are derived based on two different scenarios of channel state information (CSI). For perfect CSI, the maximum-ratio-transmission and combining (MRT-MRC) technique is applied to design the beamforming and combining vectors. Without perfect CSI, the transmission scheme with limited feedback is designed, and the analytical results are verified through two kinds of codebooks, i.e., random vector quantization and Grassmann. The simulation results show that, the proposed transmission schemes for the two-way relay system can outperform other transmission schemes in the performance of outage probability and ASER, and the accuracy of the derived closed-form expressions is also verified by the numerical simulations.
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Supported by the National Basic Research Program of China (Grant No. 2007CB310603), the National Natural Science Foundation of China (Grant Nos. 60672093, 60496310, 60702029, 60902012), the National High-Tech Research & Development Program of China (Grant No. 2007AA01Z262), and the Natural Science Foundation of Jiangsu Province (Grant No. BK2005061)
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Zhao, R., Yang, L. & Zhu, W. Transmission scheme and performance analysis for decode-and-forward MIMO two-way relay systems. Sci. China Ser. F-Inf. Sci. 52, 2308–2316 (2009). https://doi.org/10.1007/s11432-009-0210-x
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DOI: https://doi.org/10.1007/s11432-009-0210-x