Enhanced beamforming design and sum-rate maximization for two-way multi-relay networks

被引：0
作者：
Wei Duan
Yier Yan
Han Hai
Xueqin Jiang
Haiyang Yu
Moon Ho Lee
机构：
[1] Chonbuk National University,Division of Electronic and Information Engineering
[2] Donghua University,School of Information Science and Technology
[3] Guangzhou University,School of Mechanical and Electrical Engineering
来源：
EURASIP Journal on Wireless Communications and Networking | / 2016卷
关键词：
Two-way relay channel; Sum-rate; Cholesky decomposition; Cauchy-Schwarz inequality; Amplify-and-forward;
D O I：
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学科分类号：
摘要：
In this paper, we investigate an enhanced relay beamforming design for two-way relay networks (TWRN). In order to reduce the computational complexity, we derive a sum of the inverse of the signal-to-noise ratio (SI-SNR) problem equivalent to the objective sum-rate (SR) problem. The SI-SNR problem can be reformulated as a simple optimization problem by using the Cholesky decomposition and Cauchy-Schwarz inequality, and solved by the interior-point method. The numerical results show that the proposed SI-SNR method can not only reduce the computational complexity but also have the same SR performance as that of the conventional works.
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  • [1] T Koike-Akino P(2009)Tarokh, Optimized constellations for two-way wireless relaying with physical network coding IEEE J. Sel. Areas Commun 27 773-787
  • [2] Popovski V(2014)Denoise-and-forward network coding for two-way relay MIMO systems IEEE Trans. Veh. Technol 63 775-788
  • [3] Zhao Z(2010)Compress-and-forward cooperative MIMO relaying with full channel state information IEEE Trans. Signal Pross 58 781-791
  • [4] Peng M(2013)Outage performance for decode-and-forward two-way relay network with multiple interferers and noisy relay IEEE Trans. Commun 61 521-531
  • [5] Ding Z(2016)New beamforming and relay selection for two-way decode-and-forward relay networks IEEE Trans. Veh. Technol 65 1354-1366
  • [6] Wang W(2013)Amplify-and-forward strategies in the two-way relay channel with analog TxCRx beamforming IEEE Trans. Veh. Technol 62 642-654
  • [7] Chen H(2011)Multi-user two-way relay networks with distributed beamforming IEEE Trans. Wirel. Commun 10 3460-3471
  • [8] Simoens S(2010)Optimal distributed beamforming for two-way relay networks IEEE Trans. Signal Process 58 1238-1250
  • [9] Medina O(2012)Joint source relay optimization for two-way linear nonregenerative MIMO relay communications IEEE Trans. Signal Process 60 6533-6546
  • [10] Vidal J(2011)Maximizing the sum-rate of amplify-and-forward two-way relaying networks IEEE Commun. Lett 18 635-638
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