caa a22 4500 606205810 CHVBK 20210128101009.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00034-015-0005-9 doi (NATIONALLICENCE)springer-10.1007/s00034-015-0005-9 A Variable Step-Size Diffusion Normalized Least-Mean-Square Algorithm with a Combination Method Based on Mean-Square Deviation [Elektronische Daten] [Sang Jung, Ji-Hye Seo, PooGyeon Park] A novel diffusion normalized least-mean-square algorithm is proposed for distributed network. For the adaptation step, the upper bound of the mean-square deviation (MSD) is derived instead of the exact MSD value, and then, the variable step size is obtained by minimizing it to achieve fast convergence rate and small steady-state error. For the diffusion step, the individual estimate at each node is constructed via the weighted sum of the intermediate estimates at its neighbor nodes, where the weights are designed by using a proposed combination method based on the MSD at each node. The proposed MSD-based combination method provides effective weights by using the MSD at each node as a reliability indicator. Simulations in a system identification context show that the proposed algorithm outperforms other algorithms in the literatures. Springer Science+Business Media New York, 2015 Adaptive filters nationallicence Distributed network nationallicence Distributed estimation nationallicence Diffusion normalized least-mean-square algorithm nationallicence Variable step size nationallicence Combination method nationallicence Jung Sang Department of Electrical Engineering, Pohang University of Science and Technology, 790-784, Gyungbuk, Korea aut Seo Ji-Hye Department of Division of IT Convergence Engineering, Pohang University of Science and Technology, 790-784, Gyungbuk, Korea aut Park PooGyeon Department of Electrical Engineering, Pohang University of Science and Technology, 790-784, Gyungbuk, Korea aut Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/10(2015-10-01), 3291-3304 0278-081X 34:10<3291 2015 34 34 https://doi.org/10.1007/s00034-015-0005-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00034-015-0005-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jung Sang Department of Electrical Engineering, Pohang University of Science and Technology, 790-784, Gyungbuk, Korea aut NATIONALLICENCE 700 1- Seo Ji-Hye Department of Division of IT Convergence Engineering, Pohang University of Science and Technology, 790-784, Gyungbuk, Korea aut NATIONALLICENCE 700 1- Park PooGyeon Department of Electrical Engineering, Pohang University of Science and Technology, 790-784, Gyungbuk, Korea aut NATIONALLICENCE 773 0- Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/10(2015-10-01), 3291-3304 0278-081X 34:10<3291 2015 34 34