NDLI: Partial-diffusion recursive least-squares estimation over adaptive networks

Content Provider	IEEE Xplore Digital Library
Author	Arablouei, R. Werner, S. Dogancay, K.
Copyright Year	2013
Description	Author affiliation: Dept. of Signal Process. & Acoust., Aalto Univ., Espoo, Finland (Werner, S.) \|\| Sch. of Eng., Univ. of South Australia, Mawson Lakes, SA, Australia (Arablouei, R.; Dogancay, K.)
Abstract	In the diffusion strategies for distributed estimation over adaptive networks, each node calculates a weighted average of the intermediate parameter estimates of its neighboring nodes. Thus, all the nodes should continuously share their intermediate estimates with their neighbors. In this paper, we consider exchanging a predetermined number of elements of each intermediate estimate vector at each iteration rather than the entire vectors. We examine two different schemes, i.e., stochastic and sequential partial-diffusion schemes, for selecting the to-be-diffused elements at each iteration. Accordingly, we propose a partial-diffusion recursive least-squares (PDRLS) algorithm that can alleviate internode communications at the expense of estimation performance. Simulation results show that the communication-performance trade-off offered by the proposed algorithm is indeed lucrative.
Sponsorship	IEEE Signal Process. Soc.
Starting Page	89
Ending Page	92
File Size	775703
Page Count	4
File Format	PDF
e-ISBN	9781467331463
DOI	10.1109/CAMSAP.2013.6714014
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-15
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	distributed estimation Adaptive systems Conferences adaptive networks Estimation Signal processing algorithms Educational institutions Vectors recursive least-squares Optimization diffusion adaptation partial diffusion
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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