Research on Maximum SNR Relay Selection Algorithm Based on Channel Prediction
DOI: 10.23977/cpcs.2023.070104 | Downloads: 6 | Views: 151
Hao Zhu 1, Yue Yan 1, Hao Wang 1, Luyao Zhou 1
1 College of Physics and Information Engineering, Zhaotong University, Zhaotong, China
Corresponding AuthorHao Zhu
As one of the key candidate technologies for 5G, D2D communication technology can solve the problem of excessive data traffic caused by excessive number of mobile devices to a certain extent. Aiming at the problem of channel quality deterioration and communication interruption caused by the large distance between D2D communication parties, a relay selection algorithm based on maximum SNR channel prediction is proposed. Firstly, the relay set is established for the correctly decoded relay; Secondly, the channels in the relay set are predicted according to the existing MMSE algorithm, and a set of channel coefficients are obtained to calculate the SNR of each relay link; Finally, the one with the maximum SNR is selected as the optimal relay for forwarding. Simulation results show that the outage probability of the proposed algorithm is about 2 to 3 orders of magnitude lower than that of the random relay selection algorithm.
KEYWORDSD2D communication, channel prediction, relay selection, signal to noise ratio
CITE THIS PAPER
Hao Zhu, Yue Yan, Hao Wang, Luyao Zhou, Research on Maximum SNR Relay Selection Algorithm Based on Channel Prediction. Computing, Performance and Communication Systems (2023) Vol. 7: 24-31. DOI: http://dx.doi.org/10.23977/cpcs.2023.070104
 Wang C X, Haider F, Gao X, et al. Cellular architecture and key technologies for 5G wireless communication networks. Journal of Chongqing University of Posts & Telecommunications, 2014, 52 (2): 122-130.
 Jie S, Co C P. Prospect of the Fifth-Generation Mobile Communication System. Telecommunications Science, 2013.
 Chen Zhaoyu and Luo Hanwen, Base Station Coverage D2D Power Control of two-hop Transmission. Shanghai Normal University Journal (natural science edition), 2015, 44 (1): 21-25.
 Shi J F, Chen M, Yang Z H, et al. Power control and performance analysis for full-duplex relay-assisted D2D Communication underlaying fifth generation cellular networks. IET Communications, 2017, 11 (18): 2729-2734.
 Xu W X. D2D Communication Network Research on Relay Selection Algorithm. Chongqing: Chongqing University of Posts and Telecommunications, 2017.
 Gao M M. Research on D2D Communication performance based on relay and multi-antenna technology. Nanjing University of Posts and Telecommunications, 2015.
 Xia W, Shao S, Sun J. Multi-Relay Selection Strategy for Device to Device Communication. 2013.
 Xia W C. Research on Adaptive Relay Selection Strategy in D2D Communication System. Nanjing University of Posts and telecommunications, 2014.
 Wu S W, Zhao M, Zhu J K, Relay Selection Algorithm Based on Partial Channel Information. Data Acquisition and Processing, 2011, 26 (2): 172-176.
 Ibrahim A S, Sadek A K, Su W, et al. SPC12-5: Relay Selection in Multi-Node Cooperative Communications: When to Cooperate and Whom to Cooperate with? IEEE Global Telecommunications Conference. 2006.
 Qin C L, Xiao K. Relay Selection Algorithm Based on Predictive SNR and its performance Analysis. Computer Engineering and Design, 2016, 37 (12): 3196-3200.