Abstract
To exploit the effect of modulation schemes on the best relay selection, a novel Jointing Modulation schemes max-min criterion (JM-max-min) is proposed firstly for Two-Way De-Noise-and-Forward (DNF) Opportunistic Relaying systems (TW-DNF-OR) by aiming at minimizing the Pairwise Error Probability (PEP) of Multi-Access (MA) phase which dominates the error performance of TW-DNF-OR due to the presence of MA interference. The proposed JM-max-min criterion integrates perfectly the minimum distances of constellations and the relay links gains. Then, with the proposed JM-max-min criterion, we analyze the Symbol Error Probabilities (SEPs) of MA phase and BroadCast (BC) phase by using the approximated mathematics analysis, and present the corresponding closed-form expressions to SEPs. The numerical analysis shows, for a given modulations combination at both sources, the TW-DNF-OR systems with the proposed JM-max-min criterion outperform the one with the conventional max-min criterion.
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Supported by the National Natural Science Foundations of China (No. 61071090, No. 61171093), the Postgraduate Innovation Programs of Scientific Research of Jiangsu Province (CX10B-184Z, CXZZ11_0388), and the Project 11KJA510001 and PAPD.
Communication author: Yang Longxiang, born in 1966, male, Ph.D., Professor.
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Jia, X., Yang, L. & Shao, S. Two-way denoise-and-forward network coding opportunistic relaying aiming at minimizing euclidean distance in multi-access phase. J. Electron.(China) 28, 433–443 (2011). https://doi.org/10.1007/s11767-012-0750-x
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DOI: https://doi.org/10.1007/s11767-012-0750-x