Abstract
In this paper, we study the design of precoding matrices for the multidirectional two-way relaying channels where multiple pairs of sources wish to exchange information with their partners. Precoding at each user and the relay is carefully constructed to ensure that the signals from the same user pair are grouped together and cross-pair interference can be canceled. Then, analytical results are developed for the proposed protocol. The numerical results are also provided to demonstrate the performance of our proposed scheme. To improve the diversity gain of the proposed scheme, an optimal scheme is also presented.
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Acknowledgments
This project was supported by National Natural Science Foundation of China (No. 61101147), The National Basic Research Program of China (973 Program, No. 2012CB316100), Specialized Research Fund for the Doctoral Program of Higher Education (No. 20110203120004), Natural Science Basic Research Plan in Shaanxi Province of China (Program No. 2014JZ018), Science Research Plan in Shaanxi Province of China (No. 2013K06-15), Open Project of Key Laboratory of Wireless Sensor Network & Communication, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences (No. 2012004), Xidian-Ningbo Information Technology Institute seed fund, The Fundamental of Research Funds for the Central Universities (No. K5051301006), The 111 Project (No. B08038).
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Wang, Y., Wu, H., Tang, L., Zhang, Y. (2016). Relay Precoding for Multiuser Cooperative Communication. In: Zeng, QA. (eds) Wireless Communications, Networking and Applications. Lecture Notes in Electrical Engineering, vol 348. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2580-5_1
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DOI: https://doi.org/10.1007/978-81-322-2580-5_1
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